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Robinson J, Gendelberg D, Chung A, Jimenez-Almonte JH, Khandehroo B, Anand N. Segmental Interbody, Muscle-Preserving, Ligamentotaxis-Enabled Reduction: "SIMPLER" Technique for cMIS Correction of ASD. Int J Spine Surg 2025; 19:S37-S54. [PMID: 39794136 PMCID: PMC12053241 DOI: 10.14444/8714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2025] Open
Abstract
BACKGROUND Correction of adult spinal deformity (ASD) through minimally invasive techniques is a challenging endeavor and has typically been reserved for experienced surgeons. This publication aims to be the first high-resolution technique guide to demonstrate a reproducible technique for ASD correction utilizing circumferential minimally invasive surgery (cMIS) without an osteotomy. The Segmental Interbody, Muscle-Preserving, Ligamentotaxis-Enabled Reduction (SIMPLER) technique is a novel ligamentotaxis-based scoliosis surgery that represents a paradigm shift from traditional osteotomies toward patient-specific correction. METHODS The senior author's (N.A.) cMIS technique for ASD correction without an osteotomy is described using high-resolution photographs, computer-generated imagery (CGI), and a case example. Step-by-step intraoperative photographs document a novel muscle-preserving posterior spinal exposure, spinal robotic safety protocol for instrumentation, dedicated deformity instrumentation system, rod reduction sequence, and minimally invasive fusion technique. CGI assists to reinforce technical considerations described by intraoperative photographs. RESULTS The SIMPLER technique is documented from incision to closure with high-resolution pictures including CGI to highlight concepts documented in photographs. Technical considerations were detailed for all aspects involved in the planning and execution of an osteotomy-free deformity correction. CONCLUSION This represents the first in-depth technical description of ligamentotaxis-based, osteotomy-free, ASD scoliosis correction. The SIMPLER approach is reproducible and minimally invasive and can be done routinely for appropriately selected deformity candidates. This technique serves as a foundation to externally validate previously described cMIS ASD deformity correction outcomes. CLINICAL RELEVANCE Circumferential minimally invasive spinal deformity correction is reproducible and can be achieved reliably through the use of the SIMPLER technique, without the use of an osteotomy. LEVEL OF EVIDENCE: 5
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Affiliation(s)
- Jerry Robinson
- University of Pittsburg Medical Center (UPMC) Harrisburg, Harrisburg, PA, USA
| | - David Gendelberg
- Department of Orthopedics, University of California, San Francisco Orthopedics Trauma Institute, San Francisco, CA, USA
| | - Andrew Chung
- Department of Orthopedics, Banner Health, Phoenix, AZ, USA
| | - Jose H Jimenez-Almonte
- Department of Orthopedics, Central Florida Bone and Joint Institute, Orange City, FL, USA
| | - Babak Khandehroo
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Neel Anand
- Department of Orthopedics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Gaume M, Vergari C, Creze M, Bonnet-Lebrun A, Muth-Seng C, Quijano-Roy S, Miladi L, Skalli W, Carlier RY. Thigh and paraspinal muscles change after fusionless bipolar fixation for early onset scoliosis in type 2 spinal muscular atrophy: Modifications in the spinal and thigh muscles of subjects with SMA2 and early onset scoliosis. Arch Pediatr 2025; 32:12-17. [PMID: 39562255 DOI: 10.1016/j.arcped.2024.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 07/29/2024] [Accepted: 08/30/2024] [Indexed: 11/21/2024]
Abstract
BACKGROUND Spinal muscular atrophy is a severe, progressive autosomal recessive neuromuscular disorder associated with neuromuscular scoliosis. When bracing is not sufficient to control the deformity, early spinal surgery is required. To the best of our knowledge, no work in the literature have assessed modifications in spinal and thigh muscles of subjects with type 2 spinal muscular atrophy (SMA2) following spinal surgery. OBJECTIVE This study aimed to better understand modifications in the spinal and thigh muscles of subjects with SMA2 and early onset scoliosis, before and after minimally invasive fusionless surgery. METHODS AND SETTINGS 20 SMA2 patients with confirmed scoliosis on bi-planar low-dose X-ray were included: 10 preoperative and 10 postoperative patients with a minimal follow-up of 5 years after surgery. The surgery consisted of a bilateral sliding rod construct extended from T1 to the sacrum, through a minimally invasive approach. All subjects had fat/water separation muscle magnetic resonance imaging from the spine to the thigh. The percentage of fat degeneration was compared before and after surgery. A quality-of-life survey was performed. RESULTS Fat infiltration was diffuse and symmetric in both groups of patients, and on average six times more compared to control subjects previously published at thigh level. Adductors, sartorius, and gracilis were less affected with respectively, 51%, 56%, and 57% of fat fraction before surgery. Comparing the preoperative and postoperative groups, fat infiltration was higher in sartorius and multifidus after surgery (p < 0.05). No significant difference was found for the other muscles studied. These results did not affect quality of life. CONCLUSION This is the first study to compare fat infiltration of spinal and thigh muscles of SMA2 patients before and after minimally invasive surgery. Our results demonstrate that muscles were globally preserved apart from multifidus and sartorius which were more affected.
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Affiliation(s)
- Mathilde Gaume
- University Institute for Spine Surgery, Armand Trousseau Hospital, Sorbonne Université, 26 avenue du Dr Netter, 75012, Paris, France; Arts et Métiers Institute of Technology, Institut de Biomécanique Humaine Georges Charpak, Université Sorbonne Paris Nord, Paris, France.
| | - Claudio Vergari
- Arts et Métiers Institute of Technology, Institut de Biomécanique Humaine Georges Charpak, Université Sorbonne Paris Nord, Paris, France
| | - Maud Creze
- Arts et Métiers Institute of Technology, Institut de Biomécanique Humaine Georges Charpak, Université Sorbonne Paris Nord, Paris, France
| | - Aurore Bonnet-Lebrun
- Arts et Métiers Institute of Technology, Institut de Biomécanique Humaine Georges Charpak, Université Sorbonne Paris Nord, Paris, France
| | - Christophe Muth-Seng
- Arts et Métiers Institute of Technology, Institut de Biomécanique Humaine Georges Charpak, Université Sorbonne Paris Nord, Paris, France
| | - Susana Quijano-Roy
- Pediatric Rehabilitation Department, Raymond Poincaré Hospital, UVSQ, Université Paris-Saclay, Assistance Publique Hôpitaux de Paris (AP-HP), Garches, France
| | - Lotfi Miladi
- Pediatric Orthopedic Surgery Department, Necker University Hospital, APHP, University of Paris-Cité, Paris, France
| | - Wafa Skalli
- Arts et Métiers Institute of Technology, Institut de Biomécanique Humaine Georges Charpak, Université Sorbonne Paris Nord, Paris, France
| | - Robert-Yves Carlier
- Radiology Department, Raymond Poincaré Hospital, UVSQ, Université Paris-Saclay, Assistance Publique Hôpitaux de Paris (AP-HP), Garches, France
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Battistelli M, Valeri F, D'Ercole M, Izzo A, Rapisarda A, Polli FM, Montano N. The use of intraoperative CT-neuronavigation in Wiltse approach. A technical note. Front Surg 2024; 11:1433273. [PMID: 39286050 PMCID: PMC11402897 DOI: 10.3389/fsurg.2024.1433273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 08/23/2024] [Indexed: 09/19/2024] Open
Abstract
Introduction The paraspinal approach was first introduced in 1968 and later refined by Leon Wiltse to gain access to the lateral interevertebral foraminal region. However, challenges can arise due to unfamiliarity with this approach, unique patient anatomy, or in case of revision surgery, potentially elevating the risk of complications and/or poor outcome. Methods Here we report on two cases in which the intraoperative Oarm CT neuronavigation was used during a Wiltse approach. Under general anesthesia, the spinous process near the surgical level is exposed through a midline incision. The patient's reference anchor is then attached to the exposed spinous process. Intraoperative CT is acquired and transferred to the Stealth Station S8 Surgical Navigation System (Medtronic). The Wiltse approach is now performed through a paramedian incision under neuronavigation guidance and perfectly tailored to the patient's unique anatomy. Results The first case was a patient harboring a left lumbar intraextraforaminal schwannoma and the second one was a patient with an extraforaminal lumbar disc herniation at the adjacent level of a previous lumbar instrumentation. We were able to easily identify and remove both the lesions minimizing the surgical approach with no complication and optimal clinical outcome. Discussion and Conclusion Our cases demonstrate the feasibility of application of intraoperative O-arm CT-neuronavigation to the Wiltse approach. In our opinion, this technique helps in minimizing the surgical approach and rapidly identifying the lesion of interest. Further studies are needed to address the effective utility and advantages of intraoperative CT-neuronavigation in this specific surgical scenario.
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Affiliation(s)
- Marco Battistelli
- Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Federico Valeri
- Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Manuela D'Ercole
- Department of Neurosurgery, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Alessandro Izzo
- Department of Neurosurgery, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Alessandro Rapisarda
- Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Filippo Maria Polli
- Department of Neurosurgery, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Nicola Montano
- Department of Neuroscience, Neurosurgery Section, Università Cattolica del Sacro Cuore, Rome, Italy
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Jiang JH, Zhao CM, Zhang J, Xu RM, Chen L. Biomechanical effects of posterior lumbar interbody fusion with vertical placement of pedicle screws compared to traditional placement. World J Clin Cases 2024; 12:4108-4120. [PMID: 39015896 PMCID: PMC11235545 DOI: 10.12998/wjcc.v12.i20.4108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/24/2024] [Accepted: 05/31/2024] [Indexed: 06/30/2024] Open
Abstract
BACKGROUND The pedicle screw technique is widely employed for vertebral body fixation in the treatment of spinal disorders. However, traditional screw placement methods require the dissection of paraspinal muscles and the insertion of pedicle screws at specific transverse section angles (TSA). Larger TSA angles require more force to pull the muscle tissue, which can increase the risk of surgical trauma and ischemic injury to the lumbar muscles. AIM To study the feasibility of zero-degree TSA vertical pedicle screw technique in the lumbosacral segment. METHODS Finite element models of vertebral bodies and pedicle screw-rod systems were established for the L4-S1 spinal segments. A standard axial load of 500 N and a rotational torque of 10 N/m were applied. Simulated screw pull-out experiment was conducted to observe pedicle screw resistance to pull-out, maximum stress, load-displacement ratio, maximum stress in vertebral bodies, load-displacement ratio in vertebral bodies, and the stress distribution in pedicle screws and vertebral bodies. Differences between the 0-degree and 17-degree TSA were compared. RESULTS At 0-degree TSA, the screw pull-out force decreased by 11.35% compared to that at 17-degree TSA (P < 0.05). At 0-degree and 17-degree TSA, the stress range in the screw-rod system was 335.1-657.5 MPa and 242.8-648.5 MPa, separately, which were below the fracture threshold for the screw-rod system (924 MPa). At 0-degree and 17-degree TSA, the stress range in the vertebral bodies was 68.45-78.91 MPa and 39.08-72.73 MPa, separately, which were below the typical bone yield stress range for vertebral bodies (110-125 MPa). At 0-degree TSA, the load-displacement ratio for the vertebral bodies and pedicle screws was slightly lower compared to that at 17-degree TSA, indicating slightly lower stability (P < 0.05). CONCLUSION The safety and stability of 0-degree TSA are slightly lower, but the risks of screw-rod system fracture, vertebral body fracture, and rupture are within acceptable limits.
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Affiliation(s)
- Ji-Hong Jiang
- Department of Orthopedic Surgery, Zhejiang University Mingzhou Hospital, Ningbo 315000, Zhejiang Province, China
| | - Chang-Ming Zhao
- Department of Orthopedic Surgery, Zhejiang University Mingzhou Hospital, Ningbo 315000, Zhejiang Province, China
| | - Jun Zhang
- Department of Orthopedic Surgery, Zhejiang University Mingzhou Hospital, Ningbo 315000, Zhejiang Province, China
| | - Rong-Ming Xu
- Department of Orthopedic Surgery, Zhejiang University Mingzhou Hospital, Ningbo 315000, Zhejiang Province, China
| | - Lei Chen
- Department of Orthopedic Surgery, Zhejiang University Mingzhou Hospital, Ningbo 315000, Zhejiang Province, China
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Gupta A, Srivastava A, Pandita N, Goswami A, Vijayaraghavan GP, Jayaswal A. Comparison of traditional growth rods and magnetically controlled growing rods in early-onset scoliosis: a case-matched mid term follow-up study. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2024; 33:2704-2712. [PMID: 38748221 DOI: 10.1007/s00586-024-08301-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 03/21/2024] [Accepted: 05/02/2024] [Indexed: 07/25/2024]
Abstract
PURPOSE Early-onset scoliosis (EOS) has always been a challenging situation for spine surgeons. The aim of treatment is to control the direction of curve progression to allow for the complete development of lungs. Among all the growth constructs available, traditional growth rods (TGR) and magnetically controlled growth rods (MCGR) are most widely used. The MCGR has been introduced a few years back and there is a dearth of long-term follow-up studies. The purpose of this study is to compare the effectiveness of TGR and MCGR for the treatment of EOS. METHODS All patients of EOS managed with either TGR or MCGR were included in the study. The patients managed with other methods or having follow-up < 2-years were excluded from the study. A total of 20 patients were recruited in the MCGR group and 28 patients were recruited in the TGR group. Both groups were matched by etiology, gender, pre-operative radiological parameters, and complications including unplanned surgeries. RESULTS The mean age in our study was 7.90 years in the MCGR group and 7.46 years in the TGR group. The mean duration of follow-up in the MCGR group was 50.89 months and in the TGR group 94.2 months. Pre-operative cobb's angle in the coronal plane and T1-S1 were comparable in both groups with a mean cobb's angle of 65.4 in MCGR and 70.5 in TGR. The mean T1-S1 length in the MCGR group was 36.1cms and in the TGR group was 35.2 cms (p = 0.18). The average increase in T1-S1 length was 1.3 cm/year in the TGR group and 1.1 cm/year in the MCGR group (p > 0.05). The TGR patients underwent 186 open lengthening surgeries and 11 unplanned surgeries for various complications. The MCGR group has 180 non-invasive lengthening with only 4 unplanned returns to OT for various causes. CONCLUSION The curve correction was similar in both TGR and MCGR groups. The average T1-S1 length achieved on final follow-up was similar in both groups. The MCGR patients have attained similar correction with fewer invasive procedures and lesser complications compared to the TGR group.
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Affiliation(s)
- Anuj Gupta
- Department of Spine Surgery, Max Superspeciality Hospital, Vaishali, Ghaziabad, India.
| | - Abhishek Srivastava
- Department of Spine Surgery, Max Superspeciality Hospital, Vaishali, Ghaziabad, India
| | | | - Ankur Goswami
- Department of Spine Surgery, Queens Medical Center. Nottingham University Hospitals, Nottingham, UK
| | | | - Arvind Jayaswal
- Department of Spine Surgery, Max Superspeciality Hospital, Vaishali, Ghaziabad, India
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Wang TY, Wang MY. Advances and Challenges in Minimally Invasive Spine Surgery. J Clin Med 2024; 13:3329. [PMID: 38893038 PMCID: PMC11173127 DOI: 10.3390/jcm13113329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/28/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
Minimally invasive spine surgery continues to grow and develop. Over the past 50 years, there has been immense growth within this subspecialty of neurosurgery. A deep understanding of the historical context and future directions of this subspecialty is imperative to developing safe adoption and targeted innovation. This review aims to describe the advancements, and challenges that we face today in minimally invasive spine surgery.
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Affiliation(s)
| | - Michael Y. Wang
- Department of Neurological Surgery, University of Miami Hospital, Miami, FL 33136, USA;
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Saunders SL, Giang SM, Sriweerawanidchakun S, Schutz A. Primary neurolymphomatosis diagnosed by spinal nerve root biopsy. Pract Neurol 2024; 24:231-234. [PMID: 38388433 DOI: 10.1136/pn-2023-003977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2024] [Indexed: 02/24/2024]
Abstract
Primary neurolymphomatosis is the direct infiltration of lymphomatous neoplastic cells into nerve roots and/or peripheral nerves. A 67-year-old man had a 24-month history of progressive and severe left lower limb neuropathic pain, ipsilateral ankle dorsiflexion weakness and gait disturbance. Gadolinium-enhanced MRI showed thickening and enhancement of the cauda equina, L5, S1 and S2 nerve roots. 18Fluorodeoxyglucose positron emission tomography showed concordant hypermetabolism. L5 nerve root biopsy confirmed diffuse large B-cell lymphoma. One cycle of rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP) chemotherapy resulted in remission, but this was not sustained. Primary neurolymphomatosis is rare and diagnostically challenging, and often the diagnosis is delayed. While biopsy is the gold standard for diagnosis, neuroimaging helps to characterise lesions and to determine the feasibility of biopsy.
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Affiliation(s)
- Samantha Louise Saunders
- Gosford Hospital, Gosford, New South Wales, Australia
- School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | | | | | - Anna Schutz
- Neurology, Gosford Hospital, Gosford, New South Wales, Australia
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Karimi H, Patel J, Olmos M, Kanter M, Hernandez NS, Silver RE, Liu P, Riesenburger RI, Kryzanski J. Spinal Anesthesia Reduces Perioperative Polypharmacy and Opioid Burden in Patients Over 65 Who Undergo Transforaminal Lumbar Interbody Fusion. World Neurosurg 2024; 185:e758-e766. [PMID: 38432509 DOI: 10.1016/j.wneu.2024.02.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Polypharmacy and opioid administration are thought to increase the risk of postoperative cognitive dysfunction and delirium in elderly patients. Spinal anesthesia (SA) holds potential to reduce perioperative polypharmacy in spine surgery. As more geriatric patients undergo spine surgery, understanding how SA can reduce polypharmacy and opioid administration is warranted. We aim to compare the perioperative polypharmacy and dose of administered opioids in patients ≥65 years who undergo transforaminal lumbar interbody fusion (TLIF) under SA versus general anesthesia (GA). METHODS A retrospective analysis of 200 patients receiving a single-surgeon TLIF procedure at a single academic center (2014-2021) was performed. Patients underwent the procedure with SA (n = 120) or GA (n = 80). Demographic, procedural, and medication data were extracted from the medical record. Opioid consumption was quantified as morphine milligram equivalents (MME). Statistical analyses included χ2 or Student's t-test. RESULTS Patients receiving SA were administered 7.45 medications on average versus 12.7 for GA patients (P < 0.001). Average perioperative opioid consumption was 5.17 MME and 20.2 MME in SA and GA patients, respectively (P < 0.001). The number of patients receiving antiemetics and opioids remained comparable postoperatively, with a mean of 32.2 MME in the GA group versus 27.5 MME in the SA group (P = 0.14). Antiemetics were administered less often as a prophylactic in the SA group (32%) versus 86% in the GA group (P < 0.001). CONCLUSIONS SA reduces perioperative polypharmacy in patients ≥65 years undergoing TLIF procedures. Further research is necessary to determine if this reduction correlates to a decrease the incidence of postoperative cognitive dysfunction and delirium.
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Affiliation(s)
- Helen Karimi
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA.
| | - Jainith Patel
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Michelle Olmos
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Matthew Kanter
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Nicholas S Hernandez
- Department of Neurosurgery, University of California San Diego, La Jolla, California, USA
| | - Rachel E Silver
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, Massachusetts, USA; Energy Metabolism Research Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts, USA
| | - Penny Liu
- Department of Anesthesiology, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Ron I Riesenburger
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - James Kryzanski
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
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Araujo Ono AHD, Pereira Filho ARD, Araujo FFD, Marcon RM, Cristante AF, Barros Filho TEDP. Access to the Lumbosacral Spine: A Current View. Rev Bras Ortop 2024; 59:e153-e159. [PMID: 38606134 PMCID: PMC11006527 DOI: 10.1055/s-0044-1785462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 09/04/2023] [Indexed: 04/13/2024] Open
Abstract
The surgical approach to the lumbosacral spine has been the subject of experimental and scientific anatomical studies since the Hippocratic era. However, it was in the 20th century that, with the evolution of asepsis and antibiotic therapy, spine surgery began to evolve at breakneck speed, and the various possibilities of access roads became objects of development and discussion. As a result, pathologies of the lumbosacral spine can be accessed in different ways and positions, from the traditional posterior approach in the prone position to the anterior, oblique, lateral, and endoscopic approaches. The current article brings state-of-the-art access routes to the lumbosacral spine. This article objective is to elucidate the possibilities of accesses the lumbar spine for any purposes, as decompression, fusion, tumour resections, reconstruction or deformity correction, despites type of implants or implants positioning.
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Affiliation(s)
- Allan Hiroshi de Araujo Ono
- Instituto de Ortopedia e Traumatologia, Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
| | | | - Fernando Flores de Araujo
- Instituto de Ortopedia e Traumatologia, Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
| | - Raphael Marthus Marcon
- Instituto de Ortopedia e Traumatologia, Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
| | - Alexandre Fogaça Cristante
- Instituto de Ortopedia e Traumatologia, Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
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Metaizeau JD, Denis D. Posterior Vertebral Body Tethering: A Preliminary Study of a New Technique to Correct Lenke 5C Lumbar Curves in Adolescent Idiopathic Scoliosis. CHILDREN (BASEL, SWITZERLAND) 2024; 11:157. [PMID: 38397271 PMCID: PMC10887278 DOI: 10.3390/children11020157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/21/2023] [Accepted: 01/24/2024] [Indexed: 02/25/2024]
Abstract
Vertebral body tethering has been approved for adolescent scoliosis correction. The usual approach is anterior, which is relatively easy for the thoracic spine, but becomes much more challenging for the lumbar curves, with a higher rate of complications. The purpose of this study was to describe and evaluate the first results of a new posterior vertebral body tethering (PVBT) technique using pedicle screws through a posterolateral Wiltse approach. Twenty-two patients with 5C idiopathic scoliosis (Lenke classification) were included in this retrospective study, with a follow up of 2 years after surgery. The lumbar and thoracic curves were measured pre-operatively (POS), at first standing (FS) and at 2 years (2Y). Complications were also analysed. A significant improvement of 30.7° was observed for lumbar curve magnitude between POS and 2Y. Both the thoracic kyphosis and the lumbar lordosis remained stable. Thirteen complications were noted: three led to posterior arthrodesis, three needed a revision with a good outcome, and the seven others (overcorrections, screw breakage or pull-out) achieved a good result. PVBT seems an effective technique for the management of type 5 C adolescent idiopathic scoliosis. The complication rate seems high but is probably secondary to the learning curve of this new technic as it concerns only the first half of the patients.
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Byvaltsev VA, Kalinin AA. [Minimally invasive removal of dumbbell shaped schwannomas with transforaminal lumbar fusion: a retrospective study with a minimum 3-year follow-up]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2024; 88:47-53. [PMID: 38549410 DOI: 10.17116/neiro20248802147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Currently, there are no standards in surgical treatment of dumbbell-shaped tumors of lumbo-foraminal region. OBJECTIVE To evaluate the effectiveness and long-term results of minimally invasive resection of dumbbell-shaped lumbar schwannomas Eden type 2 and 3 combined with transforaminal lumbar interbody fusion and transpedicular stabilization. MATERIAL AND METHODS A retrospective study included 13 patients (8 men and 5 women) with lumbar dumbbell tumors Eden type 2 and 3 who underwent minimally invasive facetectomy through posterolateral anatomical corridor, microsurgical tumor resection and MI TLIF. We analyzed intraoperative parameters, neurological functions (ASIA scale), clinical characteristics (ODI, SF-36), and complications. Resection quality and area of the multifidus muscle were assessed according to MRI data. All patients were followed-up throughout at least 3-year. RESULTS Surgery time was 147 min, blood loss - 118 ml, hospital-stay - 7 days. Clinical parameters significantly improved in the follow-up period: ODI score decreased from 72 to 12 (p=0.004), SF-36 PCS increased from 26.24 to 48.51 (p=0.006) and MCS score increased from 29.13 to 53.68 (p=0.002). According to MRI data, no tumor recurrences and severe muscle atrophy (>30%) were observed after 3 years in all cases. Superficial wound infection occurred in 1 (7.7%) case. There were normal neurological functions (ASIA type E) in all patients. CONCLUSION Minimally invasive facetectomy through posterolateral approach with MI TLIF technology can be used for safe and effective resection of dumbbell-shaped schwannomas Eden type 2 and 3.
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Affiliation(s)
- V A Byvaltsev
- Irkutsk State Medical University, Irkutsk, Russia
- Russian Railways-Medicine Clinical Hospital, Irkutsk, Russia
- Irkutsk State Medical Academy of Postgraduate Education, Irkutsk, Russia
| | - A A Kalinin
- Irkutsk State Medical University, Irkutsk, Russia
- Russian Railways-Medicine Clinical Hospital, Irkutsk, Russia
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Li CM, Zhao SJ, Xu JZ, Li Q, Quan RF, Deng XM. Case series: O-arm navigation assisted by the Wiltse approach improves the accuracy of pedicle screw placement in ankylosing spondylitis combined with thoracolumbar fractures. Medicine (Baltimore) 2023; 102:e36807. [PMID: 38206734 PMCID: PMC10754571 DOI: 10.1097/md.0000000000036807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/06/2023] [Indexed: 01/13/2024] Open
Abstract
Here we assessed the accuracy of O-arm navigation assisted by Wiltse approach to improve based pedicle screw insertion in ankylosing spondylitis combined with thoracolumbar fractures. We then compared it with the freehand pedicle screw insertion technique. The study sample included 32 patients with ankylosing spondylitis combined with thoracolumbar fractures. Pedicle screw reduction and internal fixation was performed under an O-arm navigation system assisted by a Wiltse approach-combined osteotomy ("navigation group," n = 17) and posterior pedicle screw reduction and internal fixation was performed using freehand technique combined osteotomy ("freehand group," n = 15). We then compared the operation time and bleeding volume between the 2 groups. The visual analog scale (VAS) and Oswestry disability index (ODI) were then used to evaluate the clinical efficacy and the kyphosis Cobb angle was used to evaluate the radiological efficacy before operation, 3 days after operation and after the last follow-up. All complications were noted when detected. Finally, classification of screw positions as proposed by Neo et al was used to evaluate the relationship of the position between the screw, the bone cortex, and the incidence of screw penetration. All patients were followed up for 18 to 36 months (i.e., 24.2 ± 3.5 months). The operation time and intraoperative bleeding volume of the navigation group were significantly shorter (lower) than those of the freehand group (P < .05). In addition, Both groups showed significantly decreased VAS, ODI, and Cobb angle 3 days after the operation and at the last follow-up when compared to values recorded pre-operation. However, we found no significant difference in VAS, ODI, and Cobb angle between the 2 groups (P > .05). We identified no complications (e.g., infection, VTE/PE, or nerve injury). Moreover, the pedicle screw placement position of the navigation group was better than that of the freehand group (P < .05), and the screw cortical penetration rate was lower than the freehand group (P < .05). During the process of posterior pedicle screw placement, O-arm navigation assisted by the Wiltse approach can significantly reduce operation time, minimize the amount of bleeding volume, and enhance the accuracy of pedicle screw implantation.
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Affiliation(s)
- Chang-Ming Li
- Department of Orthopaedics Institute, Xiaoshan Traditional Chinese Medical Hospital, XiaoShan District, Hangzhou, Zhejiang Province, China
| | - Shi-Jie Zhao
- Department of Orthopaedics Institute, Xiaoshan Traditional Chinese Medical Hospital, XiaoShan District, Hangzhou, Zhejiang Province, China
| | - Jian-Zhu Xu
- Department of Orthopaedics Institute, Xiaoshan Traditional Chinese Medical Hospital, XiaoShan District, Hangzhou, Zhejiang Province, China
| | - Qiang Li
- Department of Orthopaedics Institute, Xiaoshan Traditional Chinese Medical Hospital, XiaoShan District, Hangzhou, Zhejiang Province, China
| | - Ren-Fu Quan
- Department of Orthopaedics Institute, Xiaoshan Traditional Chinese Medical Hospital, XiaoShan District, Hangzhou, Zhejiang Province, China
| | - Xiao-Mei Deng
- Department of Orthopaedics Institute, Xiaoshan Traditional Chinese Medical Hospital, XiaoShan District, Hangzhou, Zhejiang Province, China
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Calvanese F, Boari N, Spina A, Gagliardi F, Bailo M, Mortini P. MIS removal of extraforaminal lumbar spine schwannoma using MAS-TLIF retractor: technical note. Br J Neurosurg 2023; 37:1901-1903. [PMID: 33612022 DOI: 10.1080/02688697.2021.1888872] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 02/08/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND To report the use of Nuvasive MAS-TLIF retractor for the removal of lumbar spine schwannomas. METHODS A 47-year-old man with 1-year history of back pain with progressive left sciatica underwent surgical resection of a left extraforaminal lumbar schwannoma (type IV according to Eden's classification) using the MAS-TLIF retractor. RESULTS The patient completely recovered from the preoperative symptoms and was discharged three days after surgery. The MRI acquired 6 months postoperatively showed complete tumour removal, with no signs of instability. The MAS-TLIF retractor allows for an optimal paraspinal tissues retraction, improving the area of exposure and the manoeuverability angle. Moreover, the stability of the retraction is guaranteed by the positioning of the two transpedicular screws. Spinal fusion is not necessary because the posterior tension band is not jeopardised. CONCLUSIONS MAS-TLIF retractor allows for a minimally invasive and safe surgical removal of LSS maximising surgical exposure and avoiding spinal fusion.
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Affiliation(s)
- Francesco Calvanese
- Department of Neurosurgery and Gamma Knife Radiosurgery, I.R.C.C.S. San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Nicola Boari
- Department of Neurosurgery and Gamma Knife Radiosurgery, I.R.C.C.S. San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Alfio Spina
- Department of Neurosurgery and Gamma Knife Radiosurgery, I.R.C.C.S. San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Filippo Gagliardi
- Department of Neurosurgery and Gamma Knife Radiosurgery, I.R.C.C.S. San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Michele Bailo
- Department of Neurosurgery and Gamma Knife Radiosurgery, I.R.C.C.S. San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Pietro Mortini
- Department of Neurosurgery and Gamma Knife Radiosurgery, I.R.C.C.S. San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
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Zhang T, Ma L, Liu H, Yang C, Li S. Comparing the Wiltse approach and classical approach of pedicle screw and hook internal fixation system for direct repair of lumbar spondylolysis in young patients: A case-control study. Medicine (Baltimore) 2023; 102:e34813. [PMID: 37713869 PMCID: PMC10508563 DOI: 10.1097/md.0000000000034813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 07/27/2023] [Indexed: 09/17/2023] Open
Abstract
The aim of this study was to investigate the clinical effect of direct isthmus repair via Wiltse approach and classical approach in the treatment of simple lumbar spondylolysis in young patients. Thirty-three patients with simple lumbar spondylolysis underwent direct isthmic repair via the Wiltse approach (n = 17) or the classical approach (n = 16). The operation time, intraoperative blood loss, postoperative drainage volume, hospital stay, fusion rate, visual analogue scale (VAS), and the Oswestry disability index were evaluated and compared between the 2 groups. The amount of intraoperative blood loss, postoperative drainage volume, and the duration of hospital stay in the Wiltse group were lower than those in the classical group (P < .05). There was no significant difference in Oswestry disability index score between the Wiltse group and the classical group at 3 months, 6 months, and 1 year after operation, but the visual analogue scale score in the Wiltse group was lower than that in the classical group at 6 months after surgery (P < .05). The Wiltse approach was comparable to the classical approach in terms of bone graft fusion time and fusion rate. The Wiltse approach for isthmus repair can achieve the same or even better clinical effect than the classical approach, and the Wiltse approach is more minimally invasive. Pedicle screw-hook internal fixation system combined with autogenous iliac bone graft via Wiltse approach is a feasible, safe, and effective minimally invasive surgical method for the repair of isthmic spondylolysis in young patients.
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Affiliation(s)
- Tao Zhang
- Department of Spine Surgery, The 940th Hospital of Joint Logistics Support Force of Chinese PLA, Lanzhou, China
| | - Lihua Ma
- The First Hospital of Lanzhou University, Lanzhou, China
| | - Hua Liu
- Department of Spine Surgery, The 940th Hospital of Joint Logistics Support Force of Chinese PLA, Lanzhou, China
| | - Chengwei Yang
- Department of Spine Surgery, The 940th Hospital of Joint Logistics Support Force of Chinese PLA, Lanzhou, China
| | - Songkai Li
- Department of Spine Surgery, The 940th Hospital of Joint Logistics Support Force of Chinese PLA, Lanzhou, China
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Rickert M, Fennema P, Wehner D, Rahim T, Hölper B, Eichler M, Makowski M, Meurer A, Brenneis M. Postoperative cage migration and subsidence following TLIF surgery is not associated with bony fusion. Sci Rep 2023; 13:12597. [PMID: 37537231 PMCID: PMC10400549 DOI: 10.1038/s41598-023-38801-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 07/14/2023] [Indexed: 08/05/2023] Open
Abstract
Pseudarthrosis following transforaminal interbody fusion (TLIF) is not infrequent. Although cage migration and subsidence are commonly regarded as evidence of the absence of solid fusion, there is still no evidence of the influence of cage migration and subsidence on fusion. This study aimed to evaluate cage migration and subsidence using computed tomography (CT) DICOM data following lumbar interbody fusion. The effects of cage migration and subsidence on fusion and clinical outcomes were also assessed. A postoperative CT data set of 67 patients treated with monosegmental TLIF was analyzed in terms of cage position. To assess the effects of cage migration and subsidence on fusion, 12-month postoperative CT scans were used to assess fusion status. Clinical evaluation included the visual analog scale for pain and the Oswestry Disability Index. Postoperative cage migration occurred in 85.1% of all patients, and cage subsidence was observed in 58.2%. Radiological signs of pseudarthrosis was observed in 7.5% of the patients Neither cage migration nor subsidence affected the clinical or radiographic outcomes. No correlation was found between clinical and radiographic outcomes. The incidence of cage migration was considerable. However, as cage migration and subsidence were not associated with bony fusion, their clinical significance was considered limited.
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Affiliation(s)
- Marcus Rickert
- Spine Department, Schön Klinik Lorsch, Wilhelm Leuschner Strasse 10, Lorsch, Germany.
| | - Peter Fennema
- ARM Advanced Medical Research, Hofenstrasse 89b, 8708, Männedorf, Switzerland
| | - Diana Wehner
- Wirbelsäulenzentrum Fulda/Main/Kinzig, Hailerer Straße 16, 63571, Gelnhausen, Germany
| | - Tamim Rahim
- Asklepios Klinik Wiesbaden GmbH, Geisenheimer Straße 10, 65197, Wiesbaden, Germany
| | - Bernd Hölper
- Wirbelsäulenzentrum Fulda/Main/Kinzig, Hailerer Straße 16, 63571, Gelnhausen, Germany
| | - Michael Eichler
- Wirbelsäulenzentrum Fulda/Main/Kinzig, Hailerer Straße 16, 63571, Gelnhausen, Germany
| | - Marcus Makowski
- Department of Radiology, MRI TU Munich, Klinikum rechts der isar der TU München, Ismaninger Strasse 22, Munich, Germany
| | - Andrea Meurer
- Department of Orthopedics, Orthopadische Universitatsklinik Friedrichsheim gGmbH, Frankfurt am Main, Hessen, Germany
| | - Marco Brenneis
- Department of Trauma and Orthopaedic Surgery, Goethe University Frankfurt, University Hospital, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
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Jenkins AL, Chung RJ, O'Donnell J, Hawks C, Jenkins S, Lazarus D, McCaffrey T, Terai H, Harvie C, Matsoukas S. Redefining the Treatment of Lumbosacral Transitional Vertebrae for Bertolotti Syndrome: Long-Term Outcomes Utilizing the Jenkins Classification to Determine Treatment. World Neurosurg 2023; 175:e21-e29. [PMID: 36898630 DOI: 10.1016/j.wneu.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/02/2023] [Indexed: 03/11/2023]
Abstract
OBJECTIVE Using the Jenkins classification, we propose a strategy of shaving down hypertrophic bone, unilateral fusion, or bilateral fusion procedures to achieve pain reduction and improve quality of life for patients with Bertolotti syndrome. METHODS We reviewed 103 patients from 2012 through 2021 who had surgically treated Bertolotti syndrome. We identified 56 patients with Bertolotti syndrome and at least 6 months of follow-up. Patients with iliac contact preoperatively were presumed to be more likely to have hip pain that could respond to surgical treatment, and those patients were tracked for those outcomes as well. RESULTS Type 1 patients (n = 13) underwent resection. Eleven (85%) had improvement, 7 (54%) had good outcome, 1 (7%) had subsequent surgery, 1 (7%) was suggested additional surgery, and 2 (14%) were lost to follow-up. In Type 2 patients (n = 36), 18 underwent decompressions and 18 underwent fusions as a first line. Of the 18 patients treated with resection an interim analysis saw 10 (55%) with failure and needing subsequent procedures. With subsequent procedure, 14 (78%) saw improvement. For fusion surgical patients, 16 (88%) saw some improvement and 13 (72%) had a good outcome. In Type 4 patients (n = 7), 6 (86%) did well with unilateral fusion, with durable benefit at 2 years. In patients who had hip pain preoperatively (n = 27), 21 (78%) had improvement of hip pain postoperatively. CONCLUSIONS The Jenkins classification system provides a strategy for patients with Bertolotti syndrome who fail conservative therapy. Patients with Type 1 anatomy respond well to resection procedures. Patients with Type 2 and Type 4 anatomy respond well to fusion procedures. These patients respond well in regard to hip pain.
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Affiliation(s)
- Arthur L Jenkins
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Jenkins NeuroSpine, Private Practice, New York, New York, USA.
| | - Richard J Chung
- Jenkins NeuroSpine, Private Practice, New York, New York, USA
| | - John O'Donnell
- Jenkins NeuroSpine, Private Practice, New York, New York, USA
| | - Charlotte Hawks
- Jenkins NeuroSpine, Private Practice, New York, New York, USA
| | - Sarah Jenkins
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Jenkins NeuroSpine, Private Practice, New York, New York, USA
| | | | - Tara McCaffrey
- Jenkins NeuroSpine, Private Practice, New York, New York, USA
| | - Hiromi Terai
- Jenkins NeuroSpine, Private Practice, New York, New York, USA
| | - Camryn Harvie
- Jenkins NeuroSpine, Private Practice, New York, New York, USA
| | - Stavros Matsoukas
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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17
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Gago G, Ludwig G, Ness R, Brasil A. Use of Wiltse approach in lumbar plexus schwannoma: A technical note. Surg Neurol Int 2023; 14:118. [PMID: 37151466 PMCID: PMC10159293 DOI: 10.25259/sni_1019_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 03/16/2023] [Indexed: 04/03/2023] Open
Abstract
Background:
Lumbar plexus schwannomas are a rare occurrence in neurosurgery, with few reported cases and no standard surgical approach. This study describes a successful surgical resection with no complications using the Wiltse approach.
Methods:
Patient presented with an intra-psoas tumor suggesting schwannoma. We described the surgical technique involved step by step.
Results:
The patient recovered from the surgery with no complications. The anatomopathological examination confirmed the schwannoma diagnosis. The post operatory magnetic resonance imaging showed complete resection.
Conclusion:
This study shows that the use of Wiltse approach, mainly used for classical herniated disc extraforaminal, can be used successfully on Lumbar plexus schwannomas.
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Affiliation(s)
- Guilherme Gago
- Department of Neurosurgery, Hospital São José-Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil
| | - Guilherme Ludwig
- Department of Neurosurgery, Hospital São José-Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil
| | - Rodrigo Ness
- Department of Teaching and Research, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Albert Brasil
- Department of Neurosurgery, Hospital São José-Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil
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18
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Cabrera JP, Camino-Willhuber G, Muthu S, Guiroy A, Valacco M, Pola E. Percutaneous Versus Open Pedicle Screw Fixation for Pyogenic Spondylodiscitis of the Thoracic and Lumbar Spine: Systematic Review and Meta-Analysis. Clin Spine Surg 2023; 36:24-33. [PMID: 35344512 DOI: 10.1097/bsd.0000000000001325] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 03/01/2022] [Indexed: 02/07/2023]
Abstract
STUDY DESIGN A systematic review and meta-analysis. OBJECTIVE This meta-analysis aimed to compare percutaneous (PPS) versus open pedicle screw (OPS) fixation for treatment of thoracic and lumbar spondylodiscitis. SUMMARY OF BACKGROUND DATA Pyogenic spondylodiscitis of the thoracic and lumbar spine can produce instability, deformity, and/or neurological compromise. When medical treatment is unsuccessful, surgical treatment is indicated, with the conventional open approach the usual standard of care. However, percutaneous techniques can be advantageous in medically vulnerable patients. MATERIALS AND METHODS A literature search was performed using the PubMed, Web of Science, and Scopus databases, looking for comparative articles on pyogenic spondylodiscitis requiring surgical stabilization with pedicle screws. This systematic review is reported according to PRISMA guidelines. RESULTS From 215 articles initially identified, 7 retrospective studies were analyzed, encapsulating an overall sample of 722 patients: 405 male (56.1%) and 317 female (43.9%). The treatment modality was PPS fixation in 342 patients (47.4%) and OPS fixation in 380 (52.6%). For PPS, operating time was 29.75 minutes ( P <0.0001), blood loss 390.18 mL ( P <0.00001), postoperative pain 1.54 points ( P <0.00001), and length of stay 4.49 days ( P =0.001) less than with OPS fixation, and wound infection 7.2% ( P =0.003) less frequent. No difference in screw misplacement ( P =0.94) or loosening ( P =0.33) rates was observed. CONCLUSION Employing PPS fixation to treat pyogenic spondylodiscitis of the thoracic and lumbar spine is associated with significantly reduced operating time, blood loss, postoperative pain, length of stay, and rates of wound infection than OPS fixation, with no difference between the 2 treatments in rates of screw misplacement or screw loosening.
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Affiliation(s)
- Juan P Cabrera
- Department of Neurosurgery, Hospital Clínico Regional de Concepción
- Faculty of Medicine, University of Concepción, Concepción, Chile
| | - Gastón Camino-Willhuber
- Department of Orthopaedic and Traumatology, Institute of Orthopedics "Carlos E. Ottolenghi" Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Sathish Muthu
- Department of Orthopaedics, Government Medical College & Hospital, Dindigul, Tamil Nadu, India
| | - Alfredo Guiroy
- Spine Unit, Orthopedic Department, Hospital Español de Mendoza, Mendoza
| | - Marcelo Valacco
- Department of Orthopedic and Traumatology, Hospital Churruca Visca, Buenos Aires, Argentina
| | - Enrico Pola
- Division of Spine Surgery, Department of Orthopaedics and Traumatology, Policlinico di Napoli University Hospital, Università della Campania "Luigi Vanvitelli", Naples, Italy
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Zhou H, Li X, Liu Y, Wang H, Jiang W. Surgical Treatment of Andersson Lesion of the Lumbar Spine with Minimal Invasion: A Case Report. Orthop Surg 2022; 14:3129-3133. [PMID: 36172923 DOI: 10.1111/os.13426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 06/29/2022] [Accepted: 07/03/2022] [Indexed: 11/28/2022] Open
Abstract
We present a 37-year-old female patient with AL of lumbar spine (L3-4) treated by OLIF combined with pedicle screw fixation (via Wiltse paraspinal approach) with relatively minimal invasion.
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Affiliation(s)
- Hong Zhou
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xuefeng Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yijie Liu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Heng Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Weimin Jiang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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20
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Jain M, Sahoo A, Naik S, Kumar P, Mishra D. Assessment of the psoas muscle changes following the oblique lateral interbody fusion (OLIF) approach: A prospective observational study. J Orthop 2022; 33:60-65. [PMID: 35864925 PMCID: PMC9294652 DOI: 10.1016/j.jor.2022.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/07/2022] [Accepted: 07/11/2022] [Indexed: 11/19/2022] Open
Abstract
Background Traditional open posterior fusion techniques involve stripping of the posterior paraspinal muscles with protracted retraction, which can lead to ischemia and denervation. This may result in poor clinical outcomes despite a well-performed surgery. Oblique lumbar interbody fusion (OLIF) is a minimally invasive modified retroperitoneal anterior approach in the corridor between the psoas major (PM) and great vessels. The purpose of this research was to study changes in psoas properties and clinical outcomes in terms of the loss of hip flexion in patients undergoing OLIF surgery. Methods Patients with lumbar pathologies who underwent instrumented OLIF at our center were included. These patients were examined clinically at baseline and 6 months postoperatively. The Oswestry disability index (ODI) and visual analog scale (VAS) scores for back pain and leg pain were noted. Magnetic resonance imaging (MRI) scans were obtained preoperatively and postoperatively (minimum 6 months) to compare the cross-sectional areas (CSAs) of the PM. Results In total, 17 patients (male: female = 8:9) with a mean age of 46.06 ± 10.49 years were included. The operation time was 154.94 ± 32.33 min, estimated blood loss was 190 ± 56 mL, and mean CSAs of the right and left psoas were, respectively, 9.94 ± 3.19 and 10.65 ± 3.74 cm2 preoperatively and 10.00 ± 3.06 and 8.53 ± 2.81 cm2 at follow-up. Qualitative measurements revealed that muscle atrophy on the left side (approach side) was 19.12% ± 3.14% and fatty degeneration had occurred in 13 of 17 (76.5%) patients. Postoperatively, all patients had significant improvement in the VAS (back and leg) and ODI scores. Furthermore, 3 of 17 (17.6%) patients had mild hip weakness (4/5) on the left side immediately postoperatively, but it resolved in 6 months. Moreover, 2 of 17 (11.8%) patients complained of paraesthesia. Conclusion OLIF does cause injury to the PM but it is clinically insignificant according to MRI scans and clinical evaluations.
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Affiliation(s)
- Mantu Jain
- Department of Orthopedics, AIIMS Bhubaneswar, Odisha, 751019, India
| | - Auroshish Sahoo
- Department of Orthopedics, AIIMS Bhubaneswar, Odisha, 751019, India
| | - Suprava Naik
- Department of Radiology, AIIMS Bhubaneswar, Odisha, 751019, India
| | - Pankaj Kumar
- Department of Surgery, AIIMS Bhubaneswar, Odisha, 751019, India
| | - Dipun Mishra
- Department of Orthopedics, AIIMS Bhubaneswar, Odisha, 751019, India
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Spiriev T, Mitev A, Stoykov V, Dimitrov N, Maslarski I, Nakov V. Three-Dimensional Immersive Photorealistic Layered Dissection of Superficial and Deep Back Muscles: Anatomical Study. Cureus 2022; 14:e26727. [PMID: 35967185 PMCID: PMC9364063 DOI: 10.7759/cureus.26727] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2022] [Indexed: 11/21/2022] Open
Abstract
Introduction The distinct anatomy of the superficial and deep back muscles is characterized by complex layered courses, fascial planes, specific vascularization, and innervation. Knowledge of these anatomical parameters is important for some surgical approaches, including lumbar disc herniation, cerebrospinal fluid fistula repair, vascularized muscle pedicle flaps, and posterior fossa extra-intracranial bypass. In the present study, we use modern techniques of three-dimensional (3D) surface scanning to help better illustrate the layered anatomy of the back muscles. Material and methods We dissected in layers the back muscles of one cadaver. Every step of the dissection was 3D scanned using a technique called photogrammetry, which allows the extraction of 3D data from 2D photographs. The 3D data were processed using Blender software, and the 3D photorealistic models were uploaded to a dedicated website for 3D visualization. This allows users to see the 3D models from every desktop or mobile device, as well as augmented (AR) and virtual reality (VR) formats. Results The photorealistic 3D models present the back muscles' anatomy in a volumetric manner, which can be visualized on any computer device. The web 3D features, including AR and VR, allow users to zoom, pan, and rotate the models, which may facilitate learning. Conclusion The technology of photorealistic surface scanning, modern 3D visualization possibilities of web-dedicated formats, as well as advances in AR and VR, have the potential to help with a better understanding of complex anatomy. We believe that this opens the field for further research in the field of medical education.
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22
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Encarnacion Ramirez MDJ, Barrientos Castillo RE, Nurmukhametov R, Dosanov M, Tolokonnikov N, Bernard E, Efe IE. Microsurgical Wiltse Paraspinal Approach Using a Low-Budget Exoscope. Cureus 2022; 14:e25858. [PMID: 35836461 PMCID: PMC9275447 DOI: 10.7759/cureus.25858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2022] [Indexed: 11/29/2022] Open
Abstract
Access to microneurosurgical care in low- and middle-income countries remains limited mainly due to a lack of equipment. High purchasing and maintenance costs hinder the use of operating microscopes in low-resource facilities. The authors present an improved version of their previously introduced low-cost exoscope to achieve high magnification and illumination in low-resource environments. The setup included a 48-megapixel two-dimensional digital microscope camera, a wide field C-mount lens, ring light, and a two-link cantilever with a screw terminal. The surgical field was projected to a portable 17.3-inch 2K resolution monitor. Ten patients underwent exoscope-assisted transforaminal lumbar interbody fusion via the Wiltse paraspinal approach. The simple construction allowed a fast and intuitive preoperative setup. The in-plane switching type display provided a clear and bright image regardless of the viewing angle. The two-link arm of the cantilever allowed smooth positioning of the camera, overcoming the cumbersome up and down movements needed to zoom in and out with the previous prototype. Industrial microscope cameras are effective low-budget alternatives to conventional operating microscopes in lumbar microdiscectomy. The improved system is superior compared to the authors' previous prototype with regard to affordability, image quality, and adjustability of position and angle.
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Liu H, Li J, Sun Y, Wang X, Wang W, Guo L, Zhang F, Zhang P, Zhang W. A Comparative Study of a New Retractor‐Assisted WILTSE TLIF, MIS‐TLIF, and Traditional PLIF for Treatment of Single‐Level Lumbar Degenerative Diseases. Orthop Surg 2022; 14:1317-1330. [PMID: 35603557 PMCID: PMC9251281 DOI: 10.1111/os.13289] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/10/2022] [Accepted: 03/21/2022] [Indexed: 11/27/2022] Open
Abstract
Objectives To compare the clinical efficacy of a new retractor‐assisted Wiltse transforaminal lumbar interbody fusion (TLIF), minimally invasive TLIF (MIS‐TLIF), and traditional posterior lumbar interbody fusion (PLIF) in treating single‐level lumbar degenerative diseases. Methods A retrospective study was conducted by analyzing the clinical and imaging data of consecutive patients with single‐level lumbar degenerative diseases who underwent the new retractor‐assisted Wiltse TLIF, MIS‐TLIF, or traditional PLIF. This study enrolled 87 concurrent patients between June 2016 and December 2019 (Wiltse TLIF 29 cases; MIS‐TLIF 28 cases; PLIF 30 cases). The three groups were compared for perioperative indicators (including intraoperative blood loss, postoperative drainage volume, operation time, intraoperative fluoroscopy time, bedridden time), creatine kinase (CK), visual analog score (VAS), Oswestry disability index (ODI), Japanese Orthopaedic Association (JOA) score, intervertebral fusion rate, muscle atrophy, and fatty infiltration (including ratio of multifidus atrophy and ratio of lean‐to‐total cross‐sectional area [CSA]). Results Intraoperative blood loss (F = 62.628, p < 0.001), postoperative drainage volume (F = 72.048, p < 0.001), and bedridden time (χ2 = 62.289, p < 0.001) were significantly lower in the MIS‐TLIF and Wiltse groups than in the PLIF group. The operative and intraoperative radiation times of the MIS‐TLIF group were significantly longer than those of the Wiltse and PLIF groups. The CK concentration in the Wiltse and MIS‐TLIF groups were significantly lower than those in the PLIF group 1 day (F = 9.331, p < 0.001) and 3 days after surgery (F = 15.967, p < 0.001). The PLIF group's back pain VAS score was higher than those of the Wiltse and MIS‐TLIF groups. The PLIF group had a higher ODI 6 months (F = 3.282, p = 0.042) and 12 months (F = 5.316, p = 0.007) after surgery and a lower JOA score than the Wiltse and MIS‐TLIF groups 6 months (F = 3.234, p = 0.044) and 12 months (F = 3.874, p = 0.025) after surgery. The ratio of multifidus atrophy in the PLIF group (41.70 ± 8.84%) was significantly higher than those of the Wiltse group (24.13 ± 6.82%) and the MIS‐TLIF group (22.35 ± 5.03%). The ratio of lean‐to‐total CSA in the PLIF group was lower than those of the Wiltse and MIS‐TLIF groups after surgery (F = 8.852, p < 0.001). MIS‐TLIF group showed longer operation time (169.11 ± 29.38 min) and intraoperative fluoroscopy time (87.61 ± 3.13 s) than the Wiltse group. Conclusion Wiltse TLIF assisted by the new retractor is a more convenient and minimally invasive surgical method than the traditional PLIF and MIS‐TLIF methods, which are linked to a long learning curve and long operation and fluoroscopy time.
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Affiliation(s)
- Huanan Liu
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
| | - Jiaqi Li
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
| | - Yapeng Sun
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
| | - Xianzheng Wang
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
| | - WeiJian Wang
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
| | - Lei Guo
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
| | - Fei Zhang
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
| | - Peng Zhang
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
| | - Wei Zhang
- Department of Spinal Surgery The Third Hospital of Hebei Medical University Shijiazhuang China
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Lin MC, Liu HW, Su YK, Lo WL, Lin CM. Robot-guided versus freehand fluoroscopy-guided minimally invasive transforaminal lumbar interbody fusion: a single-institution, observational, case-control study. Neurosurg Focus 2022; 52:E9. [DOI: 10.3171/2021.10.focus21514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 10/18/2021] [Indexed: 12/29/2022]
Abstract
OBJECTIVE
The use of robotics in spinal surgery has gained popularity because of its promising accuracy and safety. ROSA is a commonly used surgical robot system for spinal surgery. The aim of this study was to compare outcomes between robot-guided and freehand fluoroscopy-guided instrumentation in minimally invasive surgery (MIS)–transforaminal lumbar interbody fusion (TLIF).
METHODS
This retrospective consecutive series reviewed 224 patients who underwent MIS-TLIF from March 2019 to April 2020 at a single institution. All patients were diagnosed with degenerative pathologies. Of those, 75 patients underwent robot-guided MIS-TLIF, and 149 patients underwent freehand fluoroscopy-guided MIS-TLIF. The incidences of pedicle breach, intraoperative outcomes, postoperative outcomes, and short-term pain control were compared.
RESULTS
The patients who underwent robot-guided surgery had a lower incidence of pedicle breach (0.27% vs 1.75%, p = 0.04) and less operative blood loss (313.7 ± 214.1 mL vs 431.6 ± 529.8 mL, p = 0.019). Nonsignificant differences were observed in operative duration (280.7 ± 98.1 minutes vs 251.4 ± 112.0 minutes, p = 0.056), hospital stay (6.6 ± 3.4 days vs 7.3 ± 4.4 days, p = 0.19), complications (intraoperative, 1.3% vs 1.3%, p = 0.45; postoperative surgery-related, 4.0% vs 4.0%, p = 0.99), and short-term pain control (postoperative day 1, 2.1 ± 1.2 vs 1.8 ± 1.2, p = 0.144; postoperative day 30, 1.2 ± 0.5 vs 1.3 ± 0.7, p = 0.610). A shorter operative duration for 4-level spinal surgery was found in the robot-guided surgery group (388.7 ± 107.3 minutes vs 544.0 ± 128.5 minutes, p = 0.047).
CONCLUSIONS
This retrospective review revealed that patients who underwent robot-guided MIS-TLIF experienced less operative blood loss. They also benefited from a shorter operative duration with higher-level (> 3 levels) spinal surgery. The postoperative outcomes were similar for both robot-guided and freehand fluoroscopy-guided procedures.
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Affiliation(s)
- Ming-Chin Lin
- Department of Neurosurgery, Shuang-Ho Hospital—Taipei Medical University, New Taipei City
- Taipei Neuroscience Institute, Taipei Medical University, Taipei
- AI and Robotic Surgery, Shuang-Ho Hospital, Taipei Medical University, New Taipei City
- Graduate Institute of Biomedical Informatics, College of Medicine Science and Technology, Taipei Medical University, Taipei
| | - Heng-Wei Liu
- Department of Neurosurgery, Shuang-Ho Hospital—Taipei Medical University, New Taipei City
- Taipei Neuroscience Institute, Taipei Medical University, Taipei
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei; and
| | - Yu-Kai Su
- Department of Neurosurgery, Shuang-Ho Hospital—Taipei Medical University, New Taipei City
- Taipei Neuroscience Institute, Taipei Medical University, Taipei
| | - Wei-Lun Lo
- Department of Neurosurgery, Shuang-Ho Hospital—Taipei Medical University, New Taipei City
- Taipei Neuroscience Institute, Taipei Medical University, Taipei
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei; and
- The PhD Program of Neural Regenerative Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chien-Min Lin
- Department of Neurosurgery, Shuang-Ho Hospital—Taipei Medical University, New Taipei City
- Taipei Neuroscience Institute, Taipei Medical University, Taipei
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei; and
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Byvaltsev VA, Kalinin AA, Goloborodko VY, Shepelev VV, Pestryakov YY, Konovalov NA. [Effectiveness of simultaneous and staged minimally invasive dorsal decompression-stabilization procedures in patients with lumbar spine degenerative diseases]. ZHURNAL VOPROSY NEĬROKHIRURGII IMENI N. N. BURDENKO 2021; 85:36-46. [PMID: 33560619 DOI: 10.17116/neiro20218501136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Minimally invasive procedures reduce the trauma of spine surgery. However, they are associated with high complexity of manipulations, long learning curve, need for expensive equipment for intraoperative navigation and significant irradiation. Various options for surgical approaches are being developed to reduce irradiation of medical staff and patients, surgery time and the number of drugs administered for general anesthesia. Simultaneous surgical interventions (SiSI) is one of these options. OBJECTIVE To compare the effectiveness of simultaneous and staged minimally invasive dorsal decompression-stabilization procedures in patients with lumbar spine degenerative diseases. MATERIAL AND METHODS A prospective study included 67 patients (41 men and 26 women) aged 48 (34; 56) years who underwent a single-level minimally invasive spinal root decompression and transforaminal interbody fusion via Wiltse posterior-lateral approach. Two study groups were distinguished: group I (simultaneous surgical interventions, SiSI) (n=29), in which guide spokes and transpedicular screws were installed simultaneously by two surgeons within one x-ray session from two sides; group II (staged surgical interventions, StSI) (n=38), in which staged transpedicular stabilization was performed (decompression side followed by contralateral side). Mean follow-up was 14 months in group I and 20 months in group II. We considered intraoperative fluoroscopy and irradiation dose, duration of surgery and anesthesia with calculation of doses of opioid drugs, blood loss, time of activation, hospital-stay and perioperative morbidity. Clinical outcomes were studied in long-term postoperative period. RESULTS Simultaneous approach ensured less time of intraoperative fluoroscopy (p=0.029) and irradiation dose (p=0.035), duration of surgery (p=0.01) and anesthesia (p=0.02), amount of opioid drugs during anesthesia (p=0.017). Blood loss, duration of activation and hospitals-stay were similar in both groups (p=0.35, p=0.12 and p=0.57, respectively). There was comparable improvement in VAS score of pain in the lumbar spine and lower extremities in both groups (p=0.63 and p=0.31, respectively). According to SF-36 questionnaire, there was no between-group difference in physical and psychological components (p=0.44 and p=0.72, respectively). There was significantly greater number of adverse effects of anesthesia in the StSI group (26.2% vs. 6.8%, p=0.003). At the same time, the number of surgical postoperative complications was similar in both groups (3.4% vs. 5.3%, p=0.62). CONCLUSION Simultaneous minimally invasive dorsal decompression-stabilization procedures have some significant advantages over staged approach regarding intraoperative parameters and adverse effects of anesthesia in patients with lumbar spine degenerative diseases. Nevertheless, there were similar clinical data and small incidence of surgical perioperative complications.
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Affiliation(s)
- V A Byvaltsev
- Irkutsk State Medical University, Irkutsk, Russia.,Private Healthcare Institution «Clinical Hospital» Russian Railways-Medicine, Irkutsk, Russia.,Irkutsk State Medical Academy of Postgraduate Education, Irkutsk, Russia
| | - A A Kalinin
- Irkutsk State Medical University, Irkutsk, Russia.,Private Healthcare Institution «Clinical Hospital» Russian Railways-Medicine, Irkutsk, Russia
| | - V Yu Goloborodko
- Private Healthcare Institution «Clinical Hospital» Russian Railways-Medicine, Irkutsk, Russia
| | - V V Shepelev
- Irkutsk State Medical University, Irkutsk, Russia
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Chin KR, Pencle FJ, Seale JA, Pencle FK. Experience of using a 3-blade LES-Tri retractor over 5 years for lumbar decompression microdiscectomy. J Orthop 2020; 21:375-378. [PMID: 32879559 PMCID: PMC7452257 DOI: 10.1016/j.jor.2020.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/05/2020] [Accepted: 08/02/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Lower back pain is the fifth most common reason for visiting a physician in the United States. Degenerative disc disease, degenerative spondylolisthesis, arthritis, and facet arthrosis are leading causes for lumbar spinal stenosis. The previous gold standard involved open laminectomy combined with medial facetectomy and foraminotomy. The advent of minimally invasive surgery (MIS) and endoscopic technologies has led to less invasive and targeted interventions. In this study, the authors aim to show a five-year experience using a three-blade retractor for lumbar decompression and microdiscectomy. METHODS A database review of a single spine surgeon over the last 5 years with a total of 306 patients undergoing single-level lumbar decompression with and without microdiscectomy. RESULTS The average age was 47 ± 12 years and the average BMI was 29.7 ± 5.7 kg/m2 with a total of 52% male patients. Operative levels included L3-4, L4-L5, and L5-S1, with 65% of procedures at the L5-S1 level and follow-up was for two years. Overall mean VAS back scores decreased from 7.9 ± 1.6 to 2.5 ± 1.1 at two-year follow-up, p = 0.001. Preoperative ODI scores improved from 32.1 ± 5.1 to 17.9 ± 4.3 at two-year follow-up, p = 0.002. The mean EBL and surgeon time was 21 ± 15 ml and 35 ± 17 min, respectively. CONCLUSION This less exposure surgery technique can be performed to allow lumbar decompression, with or without microdiscectomy. This is an anatomy preserving technique with improved outcomes.
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Affiliation(s)
- Kingsley R. Chin
- Herbert Wertheim College of Medicine at Florida International University, USA
- Charles E. Schmidt College of Medicine at Florida Atlantic University, USA
- University of Technology, JA, WI, Jamaica
- Less Exposure Surgery Specialists Institute (LESS Institute), Jamaica
| | - Fabio J.R. Pencle
- University of Technology, JA, WI, Jamaica
- Less Exposure Surgery (LES) Society, Jamaica
| | - Jason A. Seale
- Less Exposure Surgery Specialists Institute (LESS Institute), Jamaica
- Less Exposure Surgery (LES) Society, Jamaica
| | - Frank K. Pencle
- Less Exposure Surgery (LES) Society, Jamaica
- Cornwall Regional Hospital, JA, WI, Jamaica
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Ahmad AA. Minimal invasive surgery techniques for patients with adolescent idiopathic and early onset scoliosis. J Clin Orthop Trauma 2020; 11:830-838. [PMID: 32879569 PMCID: PMC7452276 DOI: 10.1016/j.jcot.2020.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/30/2020] [Accepted: 07/14/2020] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE Provide an update on minimal invasive surgery (MIS) techniques for surgical management of pediatric spine. METHODS Minimal Invasive surgery for pediatric spine deformity has evolved significantly over the past decade. We include updated information about the surgical management of patients with adolescent idiopathic and Early Onset Scoliosis through MIS techniques. We take into consideration the implementation of this technique in Low-to-Middle Income Countries (LMICs). RESULTS Although MIS began as a technique in adult and degenerative spine, recent publications on MIS in pediatric spine cases report benefits of decreased blood loss and infection incidence, and cosmetic advantages from fewer incision numbers. Adoption of MIS techniques in pediatric spine can be facilitated with pre- and intraoperative use of pertinent medical systems. CONCLUSION With appropriate considerations and training, MIS is a safe procedure for pediatric spine correction surgery and can be applicable in LMICs.
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Affiliation(s)
- Alaaeldin Azmi Ahmad
- Annajah Medical School, Palestine
- Orthopedic Department, Medical University of South Carolina, Charleston, USA
- Biomedical Engineering Department, University of Toledo, Ohio, USA
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El-Monajjed K, Driscoll M. Analysis of Surgical Forces Required to Gain Access Using a Probe for Minimally Invasive Spine Surgery via Cadaveric-Based Experiments Towards Use in Training Simulators. IEEE Trans Biomed Eng 2020; 68:330-339. [PMID: 32746011 DOI: 10.1109/tbme.2020.2996980] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Virtual Reality haptic-based surgical simulators for training purposes have recently been receiving increased traction within the medical field. However, its future adoption is contingent on the accuracy and reliability of the haptic feedback. GOAL This study describes and analyzes the implementation of a set of haptic-tailored experiments to extract the force feedback of a medical probe used in minimally invasive spinal lumbar interbody fusion surgeries. METHODS Experiments to extract linear, lateral and rotational insertion, relaxation and extraction of the tool within the spinal muscles, intervertebral discs and lumbar nerve on two cadaveric torsos were conducted. RESULTS Notably, mean force-displacement and torque-angular displacement curves describing the different tool-tissue responses were reported with a maximum force of 6.87 (±1.79) N at 40 mm in the muscle and an initial rupture force through the Annulus Fibrosis of 20.550 (±7.841) N at 6.441 mm in the L4/L5 disc. CONCLUSION The analysis showed that increasing the velocity of the probe slightly reduced and delayed depth of the muscle punctures but significantly lowered the force reduction due to relaxation. Decreasing probe depth resulted with a reduction to the force relaxation drop. However, varying the puncturing angle of attack resulted with a significant effect on increasing force intensities. Finally, not resecting the thoracolumbar fascia prior to puncturing the muscle resulted with a significant increase in the force intensities. SIGNIFICANCE These results present a complete characterization of the input required for probe access for spinal surgeries to provide an accurate haptic response in training simulators.
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Abstract
Spinal fusion surgery is performed all over the world to help patients with cervical and thoracolumbar pathology. As outcomes continue to improve in patients with spine-related pathology, it is important to understand how we got to modern day spinal fusion surgery. Scientific innovations have ranged from the first spinal fusions performed with basic instrumentation in the late nineteenth century to contemporary tools such as pedicle screws, bone grafts, and interbody devices. This article tracks this technological growth so that surgeons may better serve their patients in treating spine-related pain and disability.
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30
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Byvaltsev VA, Kalinin AA, Konovalov NA. [Minimally invasive spinal surgery: stages of development]. ZHURNAL VOPROSY NEĬROKHIRURGII IMENI N. N. BURDENKO 2019; 83:92-100. [PMID: 31825380 DOI: 10.17116/neiro20198305192] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In recent decades, spinal surgery has changed significantly. The active use of modern knowledge of anatomy, various diagnostic modules, specialized surgical equipment and high-tech tools has made it possible to transform classical surgical techniques into a new area of spinal neurosurgery - minimally invasive spine surgery (MISS). Its main goals are to reduce damage to the skin and adjacent tissues, significantly reduce the level of pain, reduce the duration of inpatient treatment and fully restore functional status in the shortest possible time. This article reflects the main criteria for MISS compliance and types of surgical interventions, provides information on the advantages of minimally invasive surgical technologies and their possible disadvantages. Currently, the use of MISS is observed in all areas of vertebrology - for degenerative diseases, tumors, inflammatory and traumatic lesions of the spine. At the same time, minimizing surgical aggression while maximizing the achievement of goal becomes the main rule of modern spinal surgery.
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Affiliation(s)
- V A Byvaltsev
- Irkutsk State Medical University of Ministry of Health, Irkutsk, Russia; Route clinical hospital at train station Irkutsk-Passenger of JSC 'Russian Railroads', Irkutsk, Russia; Irkutsk Scientific Center of surgery and traumathology, Irkutsk, Russia; Irkutsk State Medical Academy of Postgraduate Education, Irkutsk, Russia
| | - A A Kalinin
- Irkutsk State Medical University of Ministry of Health, Irkutsk, Russia; Route clinical hospital at train station Irkutsk-Passenger of JSC 'Russian Railroads', Irkutsk, Russia
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