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Thayaparan A, Kantharuban S. Anterior Cruciate Ligament Rupture: Evidence-Based Concepts on Reconstruction, Repair and Future Developments. Cureus 2024; 16:e67956. [PMID: 39328699 PMCID: PMC11426957 DOI: 10.7759/cureus.67956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2024] [Indexed: 09/28/2024] Open
Abstract
The anterior cruciate ligament (ACL) is a vital but frequently injured structure. An ACL injury can result in dysfunction, meniscal injuries, and the early onset of osteoarthritis. This article aims to discuss favourable reconstruction techniques through a literature review with consideration for novel methods in order to identify superior methods that provide a patient's return to function. Current surgical options include reconstruction using different types of autografts and allografts.
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Mueller MM, Tenfelde O, Hinz N, Pagenstert G, Frosch KH, Hoeher J, Akoto R. App-based analysis of the femoral tunnel position in ACL reconstruction using the quadrant method. Arch Orthop Trauma Surg 2024; 144:3137-3144. [PMID: 38795188 DOI: 10.1007/s00402-024-05380-9] [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: 12/30/2023] [Accepted: 05/09/2024] [Indexed: 05/27/2024]
Abstract
PURPOSE The purpose of this study was to examine the intra- and interobserver variability of an app-based analysis of the femoral tunnel position using the quadrant method in primary anterior cruciate ligament reconstruction. MATERIALS AND METHODS Between 12/2020 und 12/2021 50 patients who underwent primary anterior cruciate ligament reconstruction were included in this retrospective study. Intraoperative strictly lateral fluoroscopic images of the knee with marked femoral tunnel were analyzed by four observers using the quadrant method. For retest reliability analysis, measurements were repeated once by 2 observers after 4 weeks. RESULTS The femoral tunnel position of all included patients averaged 27.86% in the depth relation and 15.61% in the height relation. Statistical analysis showed an almost perfect intra- and interobserver reliability in the depth and height relation. The ICC was 0.92 in the depth relation and 0.84 in the height relation. The Pearson's correlation coefficient in the depth and height relation of observer 1 (0.94/0.81) was only slightly different from the Pearson's correlation coefficient of observer 2 (0.92/0.85). The app-based tunnel analysis took on average 59 ± 16 s per measurement. CONCLUSION The femoral tunnel analysis with the app-based quadrant method has an almost perfect intra- and interobserver reliability. By smartphone camera, a fast and highly accurate, if necessary also intraoperative, control of the tunnel position can be performed. LEVEL OF EVIDENCE Level 3-diagnostic retrospective cohort study.
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Affiliation(s)
- Maximilian M Mueller
- Department of Trauma Surgery, Orthopaedics and Sports Traumatology, BG Klinikum Hamburg, Bergedorfer Strasse 10, 21033, Hamburg, Germany.
| | - Oliver Tenfelde
- Department of Orthopaedic Surgery, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, University of Witten/Herdecke, Ostmerheimer Str. 200, 51109, Cologne, Germany
- Sportsclinic Cologne, University of Witten/Herdecke, Ostmerheimer Str. 200, 51109, Cologne, Germany
| | - Nico Hinz
- Department of Trauma Surgery, Orthopaedics and Sports Traumatology, BG Klinikum Hamburg, Bergedorfer Strasse 10, 21033, Hamburg, Germany
| | - Geert Pagenstert
- Clarahof Clinic of Orthopaedic Surgery, University of Basel, Clarahofweg 19a, 4058, Basel, Switzerland
| | - Karl-Heinz Frosch
- Department of Trauma Surgery, Orthopaedics and Sports Traumatology, BG Klinikum Hamburg, Bergedorfer Strasse 10, 21033, Hamburg, Germany
- Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Juergen Hoeher
- Department of Orthopaedic Surgery, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, University of Witten/Herdecke, Ostmerheimer Str. 200, 51109, Cologne, Germany
- Sportsclinic Cologne, University of Witten/Herdecke, Ostmerheimer Str. 200, 51109, Cologne, Germany
| | - Ralph Akoto
- Department of Trauma Surgery, Orthopaedics and Sports Traumatology, BG Klinikum Hamburg, Bergedorfer Strasse 10, 21033, Hamburg, Germany
- Department of Orthopaedic Surgery, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, University of Witten/Herdecke, Ostmerheimer Str. 200, 51109, Cologne, Germany
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Yang G, Liu D, Zhou G, Wang Q, Zhang X. Robot-assisted anterior cruciate ligament reconstruction based on three-dimensional images. J Orthop Surg Res 2024; 19:246. [PMID: 38632565 PMCID: PMC11022485 DOI: 10.1186/s13018-024-04732-w] [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: 02/22/2024] [Accepted: 04/11/2024] [Indexed: 04/19/2024] Open
Abstract
Background Tunnel placement is a key step in anterior cruciate ligament (ACL) reconstruction. The purpose of this study was to evaluate the accuracy of bone tunnel drilling in arthroscopic ACL reconstruction assisted by a three-dimensional (3D) image-based robot system. Methods Robot-assisted ACL reconstruction was performed on twelve freshly frozen knee specimens. During the operation, three-dimensional images were used for ACL bone tunnel planning, and the robotic arm was used for navigation and drilling. Twelve patients who underwent traditional arthroscopic ACL reconstruction were included. 3D computed tomography was used to measure the actual position of the ACL bone tunnel and to evaluate the accuracy of the robotic and traditional ACL bone tunnel. Results On the femoral side, the positions of robotic and traditional surgery tunnels were 29.3 ± 1.4% and 32.1 ± 3.9% in the deep-to-shallow direction of the lateral femoral condyle (p = 0.032), and 34.6 ± 1.2% and 21.2 ± 9.4% in the high-to-low direction (p < 0.001), respectively. On the tibial side, the positions of the robotic and traditional surgical tunnels were located at 48.4 ± 0.9% and 45.8 ± 2.8% of the medial-to-lateral diameter of the tibial plateau (p = 0.008), 38.1 ± 0.8% and 34.6 ± 6.0% of the anterior-to-posterior diameter (p = 0.071), respectively. Conclusions In this study, ACL reconstruction was completed with the assistance of a robot arm and 3D images, and the robot was able to drill the bone tunnel more accurately than the traditional arthroscopic ACL reconstruction.
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Affiliation(s)
- Gang Yang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Rd., Haidian District, Beijing, 100191, People's Republic of China
- Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Dingge Liu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Rd., Haidian District, Beijing, 100191, People's Republic of China
- Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Guangjin Zhou
- Department of Radiology, Peking University Third Hospital, Beijing, China
| | - Qining Wang
- Department of Advanced Manufacturing and Robotics, Peking University, Beijing, China
- Institute for Artificial Intelligence, Peking University, Beijing, China
| | - Xin Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Rd., Haidian District, Beijing, 100191, People's Republic of China.
- Beijing Key Laboratory of Sports Injuries, Beijing, China.
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China.
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Zhang L, Lin J, Zhao X, Liu M, Hou Y, Zhang Y, Zhao J, Wang S. Robotic-assisted anatomic anterior cruciate ligament reconstruction: a comparative analysis of modified transtibial and anteromedial portal techniques in cadaveric knees. Front Bioeng Biotechnol 2024; 12:1360560. [PMID: 38511128 PMCID: PMC10953503 DOI: 10.3389/fbioe.2024.1360560] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 02/07/2024] [Indexed: 03/22/2024] Open
Abstract
Introduction: This study employed surgical robot to perform anatomic single-bundle reconstruction using the modified transtibial (TT) technique and anteromedial (AM) portal technique. The purpose was to directly compare tunnel and graft characteristics of the two techniques. Methods: Eight cadaveric knees without ligament injury were used in the study. The modified TT and AM portal technique were both conducted under surgical robotic system. Postoperative data acquisition of the tunnel and graft characteristics included tibial tunnel position, tunnel angle, tunnel length and femoral tunnel-graft angle. Results: The mean tibial tunnel length of the modified TT technique was significantly shorter than in the AM portal technique (p < 0.001). The mean length of the femoral tunnel was significantly longer for the modified TT technique than for the AM portal technique (p < 0.001). The mean coronal angle of the tibial tunnel was significantly lower for the modified TT technique than for the AM portal technique (p < 0.001). The mean coronal angle of the femoral tunnel was significantly lower for the AM portal technique than for the modified TT technique (p < 0.001). The AM portal technique resulted in a graft bending angle that was significantly more angulated in the coronal (p < 0.001) and the sagittal planes (p < 0.001) compared with the modified TT technique. Discussion: Comparison of the preoperative planning and postoperative femoral tunnel positions showed that the mean difference of the tunnel position was 1.8 ± 0.4 mm. It suggested that the surgical navigation robot could make predictable tunnel position with high accuracy. The findings may support that the modified TT technique has benefits on femoral tunnel length and obliquity compared with AM portal technique. The modified TT technique showed a larger femoral tunnel angle in the coronal plane than the AM portal technique. Compared with the modified TT technique, the more horizontal trajectory of the femoral tunnel in the AM portal technique creates a shorter femoral tunnel length and a more acute graft bending angle.
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Affiliation(s)
- Ling Zhang
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Jinpeng Lin
- Department of Orthopaedics, Guangdong Provincial Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xuan Zhao
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Mingwei Liu
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Yao Hou
- Shanghai Droidsurg Medical Technology Co., Ltd., Shanghai, China
| | - Yu Zhang
- Department of Orthopaedics, Guangdong Provincial Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shaobai Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
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Tapasvi S, Shekhar A. The anterior cruciate ligament: Chronicles of a legend. J ISAKOS 2023; 8:135-136. [PMID: 36924823 DOI: 10.1016/j.jisako.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 02/08/2023] [Indexed: 03/15/2023]
Affiliation(s)
- Sachin Tapasvi
- Chief Consultant, The Orthopaedic Speciality Clinic, Pune, India.
| | - Anshu Shekhar
- Consultant, Sushrut OrthoPlastic Clinic, Raipur, India.
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Figueroa F, Figueroa D, Guiloff R, Putnis S, Fritsch B, Itriago M. Navigation in anterior cruciate ligament reconstruction: State of the art. J ISAKOS 2023; 8:47-53. [PMID: 36179977 DOI: 10.1016/j.jisako.2022.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/15/2022] [Accepted: 09/17/2022] [Indexed: 11/16/2022]
Abstract
Computer navigation (CN) for anterior cruciate ligament (ACL) surgery has been used mainly for two purposes: to enhance the accuracy of tunnel position and to evaluate the kinematics of the ACL reconstruction (ACLR) and the stability achieved by different surgical techniques. Many studies have shown that navigation may improve the accuracy of anatomical tunnel orientation and position during ACL reconstructive surgery compared with normal arthroscopic tunnel placement, especially regarding the femoral side. At the same time, it has become the gold-standard method for intraoperative knee kinematic assessment, as it permits a quantitative multidirectional knee joint laxity evaluation. CN in ACL surgery has been associated with diverse problems. First, in most optic systems additional skin incisions and drill holes in the femoral bone are required for fixation of a reference frame to the femur. Second, additional radiation exposure and extra medical cost to the patient for preoperative planning are usually needed. Third, CN, due to additional steps, has more opportunities for error during preoperative planning, intraoperative registration, and operation. Fourth, soft tissues, including the skin and subcutaneous tissues, are usually not considered during the preoperative planning, which can be a problem for kinematic and stability assessment. Many studies have concluded that ACLR using a CN system is more expensive than conventional surgery, it adds extra time to the surgery and it is not mitigated by better clinical outcomes. This, combined with costs and invasiveness, has limited the use of CN to research-related cases. Future technology should prioritize less invasive intra-operative surgical navigation.
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Affiliation(s)
- Francisco Figueroa
- Clinica Alemana-Universidad del Desarrollo, Av Vitacura 5951, Vitacura, Santiago, 7650568, Chile; Hospital Sotero del Rio, Avenida Concha y Toro 3459, Puente Alto, Santiago, 8207257, Chile.
| | - David Figueroa
- Clinica Alemana-Universidad del Desarrollo, Av Vitacura 5951, Vitacura, Santiago, 7650568, Chile.
| | - Rodrigo Guiloff
- Clinica Alemana-Universidad del Desarrollo, Av Vitacura 5951, Vitacura, Santiago, 7650568, Chile; Hospital Sotero del Rio, Avenida Concha y Toro 3459, Puente Alto, Santiago, 8207257, Chile.
| | - Sven Putnis
- Southmead Hospital, Southmead Rd, Bristol, BS10 5NB, UK.
| | - Brett Fritsch
- Sydney Orthopaedic Research Institute, The Gallery, Level 1/445 Victoria Ave, Chatswood, NSW, 2067, Australia.
| | - Minerva Itriago
- Clinica Alemana-Universidad del Desarrollo, Av Vitacura 5951, Vitacura, Santiago, 7650568, Chile.
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Nakanishi Y, Nagai K, Kay J, Zakharia A, Nukuto K, Hoshino Y, Matsushita T, Kuroda R, de Sa D. The incidence of tibial tunnel coalition is higher than femoral tunnel coalition in double-bundle anterior cruciate ligament reconstruction using hamstring autografts: A systematic review. Orthop Traumatol Surg Res 2022; 108:103407. [PMID: 36122878 DOI: 10.1016/j.otsr.2022.103407] [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: 05/12/2021] [Revised: 01/30/2022] [Accepted: 03/03/2022] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Intra-operative and postoperative coalition of tunnels may occur in double-bundle (DB) anterior cruciate ligament reconstruction (ACLR). However, the incidence and effect on clinical outcomes of tunnel coalition following primary DB ACLR using a hamstring autograft has yet be analyzed, and thus remains unknown. The objective of this systematic review was to identify the incidence of tunnel coalition upon DB ACLR using hamstring autografts and to elucidate any clinical outcomes and/or complications that tunnel coalition may have postoperatively. HYPOTHESIS The incidence of tunnel coalition would increase in respect to time from the index surgery, and that tunnel coalition would be related to poorer clinical outcomes compared to non-coalition cases. METHODS Three databases (PubMed, EMBASE, Cochrane Library) were searched in accordance with PRISMA and R-AMSTAR guidelines on June 15, 2020. Relevant studies were screened in duplicate and data regarding patient demographics, incidence of femoral and tibial tunnel coalition, and outcomes were extracted. Coalition rate was also compared between follow up at 1 month or less defined as "shorter-term", and 6 months or greater as "longer-term". Coalition is defined as the missing of a bony bridge between the two tunnels. RESULTS Thirty-six studies examining 1,574 patients, mean age 29.1 years, were included in this study. 29 studies (1,110 knees) reported the incidence of femoral coalition with a pooled rate of coalition of 8% (95% CI=4-12%). 28 studies (1,129 knees) reported an incidence of tibial coalition with a pooled rate of coalition of 21% (95% CI=13-30%). The incidence of tibial coalition was significantly higher than the incidence of femoral coalition across 21 comparative studies (OR=3.37, 95% CI=1.41-8.09, p=0.0065). Only two studies (111 knees) compared tunnel coalition and non-coalition groups for clinical outcome and no significant differences were observed with regards to Lysholm score, Tegner activity scale, and knee laxity measured with a KT-1000 arthrometer. DISCUSSION The rate of tibial tunnel coalition in DB ACLR is higher than femoral tunnel coalition, particularly at longer-term follow-up. Despite the higher radiographic evidence of coalition, the clinical effects of such remain to be ascertained, and further comparative studies are required to facilitate this understanding. LEVEL OF EVIDENCE IV, systematic review.
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Affiliation(s)
- Yuta Nakanishi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Kanto Nagai
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
| | - Jeffrey Kay
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, Hamilton, ON, Canada
| | | | - Koji Nukuto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Takehiko Matsushita
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Darren de Sa
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, Hamilton, ON, Canada
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Deng Z, Zheng Y, Deng Z, Lu C, Wu Y, Chen K, Fu Z, Zhang H, Lu W, Zhu W. Arthroscopic reconstruction of anterior cruciate ligaments with allograft: single-tunnel single-bundle versus single-tunnel double-bundle techniques. J Orthop Traumatol 2022; 23:26. [PMID: 35759061 PMCID: PMC9237191 DOI: 10.1186/s10195-022-00649-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 06/12/2022] [Indexed: 11/25/2022] Open
Abstract
Purpose To compare the clinical results of anterior cruciate ligament (ACL) reconstruction using the single-tunnel single-bundle (STSB) technique versus the single-tunnel double-bundle (STDB) technique. Methods This was a retrospective, single-center, single-surgeon study based on data collected from March 2012 to June 2013. According to our inclusion/exclusion criteria, a total of 78 patients (64 males, 14 females; mean age, 25.1 years) who underwent arthroscopic ACL reconstruction with anterior tibialis tendon allografts through either the STSB technique (36 cases) or the STDB technique (42 cases) in our department were recruited. The International Knee Documentation Committee (IKDC), Lysholm, and Tegner scores were used to evaluate the subjective function of the knee joint during the postoperative follow-up. The Lachman test and pivot shift test were used to objectively assess the stability of the knee. Results The average follow-up duration was 24.9 ± 1.8 months in the STSB group and 24.6 ± 1.7 months in the STDB group (P > 0.05). Patients in both groups recovered to the preoperative sports level with few complications. The postoperative Lysholm score (86.1 ± 7.5 vs. 47.7 ± 9.0 in the STSB group; 87.0 ± 7.1 vs. 48.2 ± 8.3 in the STDB group), IKDC score (87.8 ± 7.2 vs. 49.3 ± 6.1 in the STSB group; 88.7 ± 6.6 vs. 49.8 ± 6.3 in the STDB group), Tegner score (6.5 ± 1.3 vs. 2.5 ± 1.3 in the STSB group; 6.6 ± 1.2 vs. 2.6 ± 1.2 in the STDB group), Lachman test positive rate (8.3% vs. 89.9% in the STSB group; 7.1% vs. 85.7% in the STDB group), and pivot shift test positive rate (27.8% vs. 63.9% in the STSB group; 7.1% vs. 69.0% in the STDB group) were significantly improved compared to the preoperative status in both groups (P < 0.05). However, no statistically significant difference was observed between the two groups at the final follow-up (P > 0.05), except for the pivot shift test positive rate in the STDB group versus the STSB group (7.1% vs. 27.8%, P < 0.05). Conclusions The STDB technique achieved a satisfactory clinical outcome with better rotational stability compared to the traditional STSB technique and therefore provided an effective option for ACL reconstruction. Level of evidence Case series, Level IV.
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Affiliation(s)
- Zhenhan Deng
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China.,Guangxi University of Chinese Medicine, Nanning, 530200, Guangxi, China
| | - Yizi Zheng
- Guangxi University of Chinese Medicine, Nanning, 530200, Guangxi, China
| | - Zhiqin Deng
- Hand and Foot Surgery Department, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China
| | - Changwei Lu
- Department of Spine and Joint Orthopedics, The People's Hospital of Hechi, Hechi, 547000, Guangxi, China
| | - Yihua Wu
- Department of Spine and Joint Orthopedics, The People's Hospital of Hechi, Hechi, 547000, Guangxi, China
| | - Kang Chen
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China
| | - Zicai Fu
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China
| | - Hui Zhang
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China
| | - Wei Lu
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China.,Guangxi University of Chinese Medicine, Nanning, 530200, Guangxi, China
| | - Weimin Zhu
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China. .,Guangxi University of Chinese Medicine, Nanning, 530200, Guangxi, China.
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Iriuchishima T, Goto B. Systematic Review of Surgical Technique and Tunnel Target Points and Placement in Anatomical Single-Bundle ACL Reconstruction. J Knee Surg 2021; 34:1531-1538. [PMID: 32480416 DOI: 10.1055/s-0040-1710521] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The purpose of this systematic review was to reveal the trend in surgical technique and tunnel targets points and placement in anatomical single-bundle anterior cruciate ligament (ACL) reconstruction. Following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement, data collection was performed. PubMed, EMBASE, and Cochran Review were searched using the terms "anterior cruciate ligament reconstruction," "anatomic or anatomical," and "single bundle." Studies were included when they reported clinical results, surgical technique, and/or tunnel placement evaluation. Laboratory studies, technical reports, case reports, and reviews were excluded from this study. From these full article reviews, graft selection, method of creating the femoral tunnel, and femoral and tibial tunnel target points and placement were evaluated. In the 79 studies included for data evaluation, the selected grafts were: bone patella tendon bone autograft (12%), and hamstring autograft (83%). The reported methods of creating the femoral tunnel were: transportal technique (54%), outside-in technique (15%), and transtibial technique (19%). In the 60 studies reporting tunnel target points, the target point was the center of the femoral footprint (60%), and the center of the anteromedial bundle footprint (22%). In the 23 studies evaluating tunnel placement, the femoral tunnel was placed in a shallow-deep direction (32.3%) and in a high-low direction (30.2%), and the tibial tunnel was placed from the anterior margin of the tibia (38.1%). The results of this systematic review revealed a trend in anatomical single-bundle ACL reconstruction favoring a hamstring tendon with a transportal technique, and a tunnel target point mainly at the center of the ACL footprint. The level of evidence stated is Systematic review of level-III studies.
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Affiliation(s)
| | - Bunsei Goto
- Department of Orthopaedic Surgery, Kamimoku Spa Hospital, Minakami, Japan
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Takahashi T, Watanabe S, Ito T. Current and future of anterior cruciate ligament reconstruction techniques. World J Meta-Anal 2021; 9:411-437. [DOI: 10.13105/wjma.v9.i5.411] [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: 03/31/2021] [Revised: 08/09/2021] [Accepted: 10/25/2021] [Indexed: 02/06/2023] Open
Abstract
In recent years, anterior cruciate ligament (ACL) reconstruction has generally yielded favorable outcomes. However, ACL reconstruction has not provided satisfactory results in terms of the rate of returning to sports and prevention of osteoarthritis (OA) progression. In this paper, we outline current techniques for ACL reconstruction such as graft materials, double-bundle or single-bundle reconstruction, femoral tunnel drilling, all-inside technique, graft fixation, preservation of remnant, anterolateral ligament reconstruction, ACL repair, revision surgery, treatment for ACL injury with OA and problems, and discuss expected future trends. To enable many more orthopedic surgeons to achieve excellent ACL reconstruction outcomes with less invasive surgery, further studies aimed at improving surgical techniques are warranted. Further development of biological augmentation and robotic surgery technologies for ACL reconstruction is also required.
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Affiliation(s)
- Toshiaki Takahashi
- Department of Sports and Health Science, Ehime University, Matsuyama 790-8577, Ehime, Japan
| | - Seiji Watanabe
- Department of Orthopedic Surgery, Ehime University Graduate School of Medicine, Toon 791-0295, Ehime, Japan
| | - Toshio Ito
- Department of Orthopaedic Surgery, Murakami Memorial Hospital, Saijo 793-0030, Ehime, Japan
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11
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Chen F, Cui X, Han B, Liu J, Zhang X, Liao H. Augmented reality navigation for minimally invasive knee surgery using enhanced arthroscopy. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2021; 201:105952. [PMID: 33561710 DOI: 10.1016/j.cmpb.2021.105952] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
PURPOSE During the minimally invasive knee surgery, surgeons insert surgical instruments and arthroscopy through small incisions, and implement treatment assisted by 2D arthroscopic images. However, this 2D arthroscopic navigation faces several problems. Firstly, the guidance information is displayed on a screen away from the surgical area, which makes hand/eye coordination difficult. Secondly, the small incision limits the surgeons to view the internal knee structures only from an arthroscopic camera. In addition, arthroscopic images commonly appear obscure visions. METHODS To solve these problems, we proposed a novel in-situ augmented reality navigation system with the enhanced arthroscopic information. Firstly, intraoperative anatomical locations were obtained by using arthroscopic images and arthroscopy calibration. Secondly, tissue properties-based model deformation method was proposed to update the 3D preoperative knee model with anatomical location information. Then, the updated model was further rendered with glasses-free real 3D display for achieving the global in-situ augmented reality view. In addition, virtual arthroscopic images were generated from the updated preoperative model to provide the anatomical information of the operation area. RESULTS Experimental results demonstrated that virtual arthroscopic images could reflect the correct structure information with a mean error of 0.32 mm. Compared with 2D arthroscopic navigation, the proposed augmented reality navigation reduced the targeting errors by 2.10 mm and 2.70 mm for the experiments of knee phantom and in-vitro swine knee, respectively. CONCLUSION Our navigation method is helpful for minimally invasive knee surgery since it can provide the global in-situ information and detail anatomical information.
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Affiliation(s)
- Fang Chen
- Department of Computer Science and Engineering, Nanjing University of Aeronautics and Astronautics, MIIT Key Laboratory of Pattern Analysis and Machine Intelligence, Nanjing, China.
| | - Xiwen Cui
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China
| | - Boxuan Han
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China
| | - Jia Liu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China
| | - Xinran Zhang
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China
| | - Hongen Liao
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China.
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Munch DRK, Hansen TI, Mikkelsen KL, Krogsgaard MR. Complications and technical failures are rare in knee ligament reconstruction: analyses based on 31,326 reconstructions during 10 years in Denmark. Knee Surg Sports Traumatol Arthrosc 2019; 27:2672-2679. [PMID: 30467581 DOI: 10.1007/s00167-018-5297-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 11/13/2018] [Indexed: 01/11/2023]
Abstract
PURPOSE Knowledge about treatment injuries (technical failures and complications) in relation to knee ligament reconstructions is sparse. Our purpose was to describe treatment injuries to knee ligament reconstruction in Denmark during a 10-year period and to suggest initiatives to reduce the risk for treatment injuries. METHODS Treatment injuries after knee ligament reconstructions reported to the Danish Patient Compensation Association (DPCA) 2005-2014 were analyzed and compared to information from the Danish Kneeligament Reconstruction Register and Danish National Patient Register. RESULTS The number of knee ligament reconstructions in Denmark 2005-2014, including revisions, was 31,326. Of the 704 cases claimed to DPCA, 371 were approved as treatment injuries (1.42% of all operations). Tunnel malpositioning (135 = 0.43% of all operations), deep infection (0.27%), nerve injury (0.17%), pain (0.12%) and unrecognized combined instability (0.11%) were the most common. Patients operated with anteromedial technique for femoral tunnel placement had a lower incidence (p < 0.0001) of tunnel malpositioning compared to other techniques. Public and private hospitals had the same risk of treatment injures. Hospitals that performed the largest number of reconstructions/year had the smallest risk of a treatment injury (p < 0.001). The total compensation was 7.6 m EURO, which equals 243 EURO/performed knee ligament reconstruction. CONCLUSION Treatment injuries as defined in this study were rare, with tunnel malpositioning being the most common. Analyses of the results indicate that it may be clinically relevant to reduce the number of treatment injures that knee ligament reconstructions are concentrated in clinics with high volume. Also, malpositioning might be reduced by routine documentation of K-wire position before tunnels are drilled. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Daniel Rayan Kalakech Munch
- Section for Sports Traumatology M51, Bispebjerg-Frederiksberg Hospital, Bispebjerg Bakke 23, 2400, Copenhagen NV, Denmark
| | - Thomas Irgens Hansen
- Section for Sports Traumatology M51, Bispebjerg-Frederiksberg Hospital, Bispebjerg Bakke 23, 2400, Copenhagen NV, Denmark
| | - Kim Lyngby Mikkelsen
- Danish Patient Compensation Association, Kalvebod Brygge 45, 1560, Copenhagen K, Denmark
| | - Michael Rindom Krogsgaard
- Section for Sports Traumatology M51, Bispebjerg-Frederiksberg Hospital, Bispebjerg Bakke 23, 2400, Copenhagen NV, Denmark. .,Danish Patient Compensation Association, Kalvebod Brygge 45, 1560, Copenhagen K, Denmark.
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Popkin CA, Chan CM, Nowell JA, Crowley SG, Wright M, Ahmad CS. Computer Navigation for Pediatric Femoral ACL Tunnel Placement. THE IOWA ORTHOPAEDIC JOURNAL 2019; 39:121-129. [PMID: 31413685 PMCID: PMC6604552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND To compare accuracy, time and radiation exposure of pediatric femoral tunnel placement using computer navigation with a traditional freehand technique. METHODS A single all-epiphyseal femoral tunnel was placed in the distal femur of 20 Sawbones™ adolescent knee models. Ten tunnels were drilled using standard fluoroscopic guidance (FG). An additional 10 tunnels were drilled using 3D fluoroscopic computer navigation (CN). Both techniques aimed to match an exact point described by the quadrant system of Bernard. Time to perform the procedure was recorded as were number of single shot fluoroscopic images and approximate effective radiation doses. RESULTS The deviation from ideal femoral tunnel position was on average 6.4 ± 4.2 mm for FG tunnels and 2.7 ± 3.1 mm for CN tunnels (p<0.05) . There was no violation of the femoral growth plate using either technique. The surgeon was exposed to 17 ± 5.3 and 3 ± 0.66 single fluoroscopy exposures for FG and CN guidance, respectively (p<0.05). However, the effective dose for the CN because of the acquisition of 3D images was 0.52±.003 mSv and for FG was only 0.09mSv ± .027 (p <0.001). CN however required on average 12.5 ± 3.4 min compared to 4.6 ± 1.7 for FG (p<0.05) to complete drilling of the tunnel. CONCLUSON CN achieves a more accurate epiphyseal femoral ACL tunnel position but requires more time to complete and has a higher effective radiation dose than FG. Whether the CN ACL tunnels can translate to improved clinical outcomes is still unknown.Level of Evidence: V.
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Affiliation(s)
- Charles A Popkin
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY USA
| | - Charles M Chan
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY USA
| | - Jared A Nowell
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY USA
| | | | - Margaret Wright
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY USA
| | - Christopher S Ahmad
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY USA
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Ni J, Li D, Mao M, Dang X, Wang K, He J, Shi Z. A Method of Accurate Bone Tunnel Placement for Anterior Cruciate Ligament Reconstruction Based on 3-Dimensional Printing Technology: A Cadaveric Study. Arthroscopy 2018; 34:546-556. [PMID: 29122434 DOI: 10.1016/j.arthro.2017.08.288] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 08/22/2017] [Accepted: 08/23/2017] [Indexed: 02/02/2023]
Abstract
PURPOSE To explore a method of bone tunnel placement for anterior cruciate ligament (ACL) reconstruction based on 3-dimensional (3D) printing technology and to assess its accuracy. METHODS Twenty human cadaveric knees were scanned by thin-layer computed tomography (CT). To obtain data on bones used to establish a knee joint model by computer software, customized bone anchors were installed before CT. The reference point was determined at the femoral and tibial footprint areas of the ACL. The site and direction of the bone tunnels of the femur and tibia were designed and calibrated on the knee joint model according to the reference point. The resin template was designed and printed by 3D printing. Placement of the bone tunnels was accomplished by use of templates, and the cadaveric knees were scanned again to compare the concordance of the internal opening of the bone tunnels and reference points. RESULTS The twenty 3D printing templates were designed and printed successfully. CT data analysis between the planned and actual drilled tunnel positions showed mean deviations of 0.57 mm (range, 0-1.5 mm; standard deviation, 0.42 mm) at the femur and 0.58 mm (range, 0-1.5 mm; standard deviation, 0.47 mm) at the tibia. CONCLUSIONS The accuracy of bone tunnel placement for ACL reconstruction in cadaveric adult knees based on 3D printing technology is high. CLINICAL RELEVANCE This method can improve the accuracy of bone tunnel placement for ACL reconstruction in clinical sports medicine.
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Affiliation(s)
- Jianlong Ni
- Department of Orthopedic Surgery, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Dichen Li
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Mao Mao
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoqian Dang
- Department of Orthopedic Surgery, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Kunzheng Wang
- Department of Orthopedic Surgery, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jiankang He
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Zhibin Shi
- Department of Orthopedic Surgery, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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Jang KM, Park JH, Chang M, Kim Y, Lee D, Park S, Wang JH. Three-Dimensional Evaluation of Similarity of Right and Left Knee Joints. Knee Surg Relat Res 2017; 29:307-315. [PMID: 29046046 PMCID: PMC5718788 DOI: 10.5792/ksrr.16.076] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 03/21/2017] [Accepted: 03/23/2017] [Indexed: 12/05/2022] Open
Abstract
Purpose The purpose of this study was to evaluate the anatomical similarity of three-dimensional (3D) morphometric parameters between right and left knees. Materials and Methods Ten fresh-frozen paired cadaveric knees were tested. Following dissection, footprint areas of the anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) were measured. Surface scanning was performed using a 3D scanner. Scanned data were reproduced and morphometric parameters were measured on specialized software. After making mirror models, we compared footprint center positions of the ACL and PCL of both sides and calculated the average deviation of 3D alignment between the right- and left-side models. Results No significant side-to-side differences were found in any morphometric parameters. Bony shapes displayed a side-to-side difference of <1 mm. Distal femoral and proximal tibial volumes did not present side-to-side differences, either; the average 3D deviations of alignment between the right and left sides were 0.8±0.4/1.1±0.6 mm (distal femur/proximal tibia). Center-to-center distances between the right and left ACL footprints were 2.6/2.7 mm (femur/tibia) for the anteromedial bundle and 2.4/2.8 mm for the posterolateral bundle. They were 1.9/1.5 mm for the anterolateral bundle and 2.2/1.8 mm for the posteromedial bundle of the PCL. Conclusions There was a remarkable 3D morphometric similarity between right and left knees. Our results might support the concept of obtaining morphologic reference data from the uninvolved contralateral knee.
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Affiliation(s)
- Ki-Mo Jang
- Department of Orthopaedic Surgery, Anam Hospital, Korea University College of Medicine, Seoul, Koea
| | - Jong-Hoon Park
- Department of Orthopaedic Surgery, Anam Hospital, Korea University College of Medicine, Seoul, Koea
| | - Minho Chang
- School of Mechanical Engineering, Korea University, Seoul, Koea
| | - Youngjun Kim
- Center for Bionics, Korea Institute of Science and Technology, Seoul, Koea
| | - Deukhee Lee
- Center for Bionics, Korea Institute of Science and Technology, Seoul, Koea
| | - Sehyung Park
- Center for Bionics, Korea Institute of Science and Technology, Seoul, Koea
| | - Joon Ho Wang
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Koea
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Validity of rotational laxity coupled with anterior translation of the knee: A cadaveric study comparing radiostereometry and the Rotab®. Knee 2017; 24:289-294. [PMID: 28139332 DOI: 10.1016/j.knee.2017.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND In current practice, anterior cruciate ligament (ACL) tears can be diagnosed using several devices to measure anterior tibial translation and rotational knee laxity, but these measures are never collected together. The Rotab®, which yields simultaneous measurements of anterior tibial translation and passive lower limb rotation under stress, would therefore be advantageous in current practice, but its reliability has never been tested. AIM OF STUDY To evaluate the accuracy and reliability of the Rotab® compared to the reference system, radiostereometric analysis (RSA). METHODS This anatomical study was conducted on 14 lower limbs collected from fresh cadavers. Simultaneous measurements of anterior tibial translation and rotation were obtained with both systems, with antero-posterior (AP) forces of 134N and 250N using the Rotab®. Measurements were made on intact ACL and then repeated after ACL section. Variables were analyzed in univariate analysis by ANOVA, and the intraclass correlation coefficient (ICC) between the systems was determined by the Bland and Altman method. RESULTS The difference between the two methods for evaluating anterior tibial translation was 0.05±0.98mm at 134N and 0.29±1.04mm at 250N. The correlation between the tests was high (r134=r250=0.97, p=0.8). The difference between the two methods for rotational laxity was 0.69±2.7° at 134N and 0.5±0.6° at 250N. The Rotab® showed a significant difference only at 250N for rotational laxity after the ACL tear. CONCLUSION The Rotab® is a reliable device to measure rotational laxity coupled with anterior translation of the knee.
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Current use of navigation system in ACL surgery: a historical review. Knee Surg Sports Traumatol Arthrosc 2016; 24:3396-3409. [PMID: 27744575 DOI: 10.1007/s00167-016-4356-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 10/07/2016] [Indexed: 12/13/2022]
Abstract
PURPOSE The present review aims to analyse the available literature regarding the use of navigation systems in ACL reconstructive surgery underling the evolution during the years. METHODS A research of indexed scientific papers was performed on PubMed and Cochrane Library database. The research was performed in December 2015 with no publication year restriction. Only English-written papers and related to the terms ACL, NAVIGATION, CAOS and CAS were considered. Two reviewers independently selected only those manuscripts that presented at least the application of navigation system for ACL reconstructive surgery. RESULTS One hundred and forty-six of 394 articles were finally selected. In this analysis, it was possible to review the main uses of navigation system in ACL surgery including tunnel positioning for primary and revision surgery and kinematic assessment of knee laxity before and after different surgical procedures. In the early years, until 2006, navigation system was mainly used to improve tunnel positioning, but since the last decade, this tool has been principally used for kinematics evaluation. Increased accuracy of tunnel placement was observed using navigation surgery, especially, regarding femoral, 42 of 146 articles used navigation to guide tunnel positioning. During the following years, 82 of 146 articles have used navigation system to evaluate intraoperative knee kinematic. In particular, the importance of controlling rotatory laxity to achieve better surgical outcomes has been underlined. CONLUSIONS Several applications have been described and despite the contribution of navigation systems, its potential uses and theoretical advantages, there are still controversies about its clinical benefit. The present papers summarize the most relevant studies that have used navigation system in ACL reconstruction. In particular, the analysis identified four main applications of the navigation systems during ACL reconstructive surgery have been identified: (1) technical assistance for tunnel placement; (2) improvement in knowledge of the kinematic behaviour of ACL and other structures; (3) comparison of effectiveness of different surgical techniques in controlling laxities; (4) navigation system performance to improve the outcomes of ACL reconstruction and cost-effectiveness. LEVEL OF EVIDENCE IV.
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Sven S, Maurice B, Hoeher J, Marc B. Variability of tunnel positioning in fluoroscopic-assisted ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2015; 23:2269-2277. [PMID: 24817162 DOI: 10.1007/s00167-014-3029-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 04/19/2014] [Indexed: 01/11/2023]
Abstract
PURPOSE Intraoperative fluoroscopy has been proposed as a feasible method to improve the accuracy of anatomical tunnel positioning. However, it has so far not been determined, whether this technique reduces the variability of tunnel positioning in a clinical set-up. Therefore, the purpose of this study was to determine the variability of tunnel positions applying intraoperative fluoroscopy. METHODS Femoral and tibial tunnel positions of 112 fluoroscopic ACL reconstruction cases were determined according to validated radiological measurement methods. Mean positions, standard deviations and ranges were calculated to determine the variability of the tunnel positions. Subgroup variability analysis was performed to analyse cases in which tunnel positions were corrected. RESULTS Applying intraoperative fluoroscopy, the variability of tunnel positions was found to be 3 % at the femur (range 15.4 %) and 2.3 % at the tibia (9.7 %). In 34 cases (30.0 %), non-satisfactory tunnel positions were identified and could be corrected achieving more accurate positions regarding to radiological parameters (14× femur, 16× tibia, 4× femur and tibia). CONCLUSIONS The results of the presented study indicate that intraoperative fluoroscopy allows to identify non-accurate tunnel positions regarding to radiological criteria. The determined low variability indicates that fluoroscopic-based ACL reconstruction can be recommended as a feasible, easy and effective adjunct that enables surgeons to create more consistent and reliable tunnel positions in ACL reconstruction. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Shafizadeh Sven
- Department of Trauma and Orthopaedic Surgery, Cologne Merheim Medical Centre, Witten/Herdecke University, Ostmerheimer Strasse 200, 51109, Cologne, Germany.
| | - Balke Maurice
- Department of Trauma and Orthopaedic Surgery, Cologne Merheim Medical Centre, Witten/Herdecke University, Ostmerheimer Strasse 200, 51109, Cologne, Germany
| | - Juergen Hoeher
- Orthopaedics and Sports Traumatology, Cologne Merheim Medical Centre, Ostmerheimer Strasse 200, 51109, Cologne, Germany
| | - Banerjee Marc
- Department of Trauma and Orthopaedic Surgery, Cologne Merheim Medical Centre, Witten/Herdecke University, Ostmerheimer Strasse 200, 51109, Cologne, Germany
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van Kampen A. The knee joint in sports medicine. INTERNATIONAL ORTHOPAEDICS 2013; 37:177-9. [PMID: 23307019 DOI: 10.1007/s00264-013-1774-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 01/02/2013] [Indexed: 01/12/2023]
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