• Animals
• Goats
• Tibial Meniscus Injuries/surgery
• Tibial Meniscus Injuries/pathology
• Biomechanical Phenomena
• Wound Healing/physiology
• Menisci, Tibial/surgery
• Menisci, Tibial/pathology
• Menisci, Tibial/physiopathology
• Disease Models, Animal
• Suture Techniques

• age influence
• human meniscal tissue
• meniscal root detachment
• suture
• tissue resistance

• European Regional Development Fund

• matched cohort
• medial meniscus posterior root tear
• patellofemoral osteoarthritis
• root repair

• Humans
• Knee Joint/surgery
• Menisci, Tibial/surgery
• Osteoarthritis, Knee/diagnostic imaging
• Osteoarthritis, Knee/pathology
• Knee/pathology
• Magnetic Resonance Imaging

• Humans
• Menisci, Tibial/surgery
• Tibial Meniscus Injuries/surgery
• Cadaver
• Knee Joint/surgery
• Osteotomy
• Biomechanical Phenomena
• Tibia/surgery

Meniscal root tears are one of the common diseases in the field of orthopedics and sports medicine today and are the subject of many current investigative efforts.

This study aims to identify and evaluate the global trends, hotspots and frontiers in meniscal root tear research using bibliometric analysis.

A bibliometric analysis of research findings related to meniscal root tears over the past three decades was performed. CiteSpace was used to conduct document co-citation and cluster analyses on the collected data. The research was conducted based on the following factors: country and institution distribution, chronological distribution, source journal analysis, keyword co-occurrence analysis, and reference co-citation analysis.

A total of 626 research articles on meniscal root tears in English published from 1989 to 2021 were obtained. There was a significant upward trend in the total number of scientific publications over the past decades, especially in 2015–2020. The most productive countries, institutions, journals and authors are the USA, STEADMAN PHILIPPON, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, and LAPRADE RF. North America and East Asia made outstanding contributions to the research on meniscal root tears, but cooperation and exchanges between countries and institutions were not close enough. A total of 9 clusters were obtained from the citation analysis, and 8 clusters were obtained from the keyword analysis. The main keywords that ranked first were posterior root tear, medial meniscus, menisci tibial, and ACL reconstruction, and these clusters combined with the corresponding emergence reflected the current status of research at different times.

Research in this field over the past 32 years has gone through a phase of exploration in the understanding of the anatomy of the meniscal root and the diagnosis of this disease and a phase of development with in-depth biomechanical studies and improved and innovative surgical techniques. The current research focuses on the innovation of meniscal root tear repair techniques, the long-term efficacy of surgery, the variability in the efficacy of different surgical techniques, and surgical strategies for combined injuries. There will be more breakthroughs in surgical techniques, surgical equipment and surgical materials to resolve meniscal root tears.

• National Natural Science Foundation of China
• Science and Technology Plan Project of Inner Mongolia
• Natural Science Foundation of Inner Mongolia

The best treatment for degenerative medial meniscus posterior root tear (MMPRT) remains controversial. This study aimed to compare the clinical and radiological outcomes of arthroscopic meniscectomy and conservative treatment for degenerative MMPRT.

From January 2007 to December 2014, 146 patients (Meniscectomy group, 90; Conservative group, 56) were evaluated. Clinical outcomes were assessed using the Visual Analog Scale, International Knee Documentation Committee subjective scoring scale, Tegner activity scale, and Lysholm knee scoring scale at the final follow-up. Radiologic outcomes evaluated the progression of osteoarthritis (OA) according to the Kellgren-Lawrence (K-L) classification. We compared the hip-knee-ankle angle (HKAA), medial proximal tibial angle, tibial posterior slope angle, and width of medial joint space. After an average follow-up of 6.3 years, the survivorship was analyzed using the Kaplan–Meier method.

All clinical outcomes were significantly improved in both groups after treatment, with no significant differences between the two groups at the final follow-up. The progression of OA according to the K-L classification, HKAA and width of medial joint space was significantly advanced in the meniscectomy group (p = 0.03, 0.04, 0.03, respectively). The 10-year survival rates in the meniscectomy and conservative groups were 87 and 88%, respectively.

This study demonstrated that both conservative treatment and meniscectomy provided symptomatic relief. However, it was confirmed that OA progression was more severe in the meniscectomy. We conclude that arthroscopic meniscectomy had no advantage over conservative treatment in terms of clinical outcomes and OA progression in middle-aged patients with MMPRT.

Level III; retrospective comparative study.

• Arthroscopic meniscectomy
• Conservative treatment
• Medial meniscus posterior root tear
• Osteoarthritis

Meniscus root repairs are important for restoring knee function after a complete meniscus root tear. Various suturing patterns have been proposed for the root repair. The 2-simple-stitches (TSS) method is currently the preferred technique, as it is simplest to perform and allows the least displacement of the meniscus root.

To compare the biomechanical properties of a posterior medial meniscus transtibial root repair consisting of an all-inside meniscal repair device (AMRD) construct with the TSS pullout suture pattern.

Controlled laboratory study.

Ten pairs of cadaveric medial menisci were prepared with 1 of the 2 constructs. The constructs were randomized between pairs. All constructs were subjected to preloading with 2 N for 10 seconds and then cyclic loading from 5 N to 20 N for 1000 cycles at a frequency of 0.5 Hz. Subsequently, the menisci were loaded to failure at a rate of 0.5 mm/s. All loads were applied in-line with the circumferential meniscal fibers near the posterior medial meniscal horn.

The mean yield load and stiffness were similar for both constructs. The elongation after cyclic loading was greater for the AMRD. The displacement at both yield load and ultimate failure were also higher for the AMRD. The ultimate failure load of the AMRD was also significantly higher. During load to failure, the mode of failure in the AMRD was heterogeneous. All the TSS constructs failed by suture cutout.

Posterior medial meniscus root repairs using both the AMRD and TSS constructs have elongation under the biomechanically acceptable threshold of 3 mm. The stiffness and yield loads indicate similar mechanical properties of the constructs. However, the significantly higher elongation for the AMRD leaves the TSS method as the preferred option for transtibial repairs. Despite this, the AMRD construct may still represent a viable alternative to the TSS suture pattern, comparable to alternative suture patterns with similar limitations.

The AMRD construct may represent a viable alternative to the TSS suture pattern.

• all-inside meniscal repair device
• biomechanical testing
• meniscus root tear
• pullout suture
• root repair

• Meniscus–suture interface
• Posterior medial meniscus root repair
• Transtibial pull-out fixation

Repair of a meniscal tear is indicated in certain conditions. Despite extensive research on the biomechanics of various repair methods, there has been minimal investigation of whether the suture material influences the meniscal-suture construct. The purpose of this study was to compare the biomechanical properties of nine different suture materials under cyclic and load-to-failure conditions.

Ninety porcine menisci were randomly allocated to simple suture placement using either Ultrabraid®, Ultratape®, Magnum Wire®, TigerWire®, TigerTape®, LabralTape®, Orthocord®, 0 FiberWire®, or 2-0 FiberWire®. Each suture-meniscus specimen underwent cyclic loading followed by load-to-failure testing. Elongation, maximum load to failure, stiffness, and mode of failure were recorded and compared between each suture type using non-parametric testing. Mean ± standard deviation was reported and the statistical significance was p < 0.05.

Elongation during cyclic loading was lowest with 2-0 FiberWire (0.95 ± 0.17 mm); this value was statistically significantly different than the results for all other sutures except 0 FiberWire® (1.09 ± 0.17 mm, p = 0.79), TigerWire® (1.09 ± 0.29 mm, p = 0.85), TigerTape® (1.39 ± 0.29 mm, p = 0.08), and LabralTape® (1.20 ± 0.33 mm, p = 0.41). The highest elongation was seen with Ultrabraid® (1.91 ± 0.34 mm); this value was statistically significantly greater than the results for all other suture materials except Orthocord® (1.59 mm ± 0.31 mm, p = 0.46) and Magnum Wire® (1.43 ± 0.25 mm, p = 0.14). Load to failure was highest for TigerTape® (287.43 ± 41.15 N), and this result was statistically significantly different than the results for all other sutures except LabralTape® (271.34 ± 48.48 N, p = 0.99) and TigerWire® (251.03 ± 25.8 N, p = 0.51). Stiffness was highest for LabralTape® (195.77 ± 49.06 N/mm), and this result was statistically significantly different than the results for all other sutures except TigerWire® (186.49 ± 19.83 N/mm, p = 0.45) and TigerTape® (173.35 ± 15.60 N/mm, p = 0.19). The majority of sutures failed by pullout (n = 46, 51%) or tearing (n = 40, 45%).

Suture design and material affect the biomechanical behavior of porcine meniscal-suture specimens. LabralTape®, TigerWire®, and TigerTape® demonstrated better overall combinations of low elongation, high maximum load to failure, and high stiffness.

• Biomechanical analysis
• Meniscal tears
• Meniscus repair
• Porcine
• Suture repair

• Finite Element Analysis
• Menisci, Tibial/surgery
• Humans
• Biomechanical Phenomena
• Mechanical Phenomena
• Stress, Mechanical
• Tibial Meniscus Injuries/surgery

• Medial meniscus posterior root tear
• Meniscal healing
• Pullout repair
• Tibial tunnel

• Arthroscopy
• Female
• Humans
• Imaging, Three-Dimensional
• Knee Joint/diagnostic imaging
• Knee Joint/surgery
• Male
• Middle Aged
• Multidetector Computed Tomography
• Orthopedic Fixation Devices
• Retrospective Studies
• Second-Look Surgery
• Suture Techniques
• Tibial Meniscus Injuries/surgery

• all-inside repair
• meniscal repair
• meniscus
• meniscus root tear
• total knee arthroplasty

• medial meniscus
• posterior root tear
• repair
• systematic review

• Arthroplasty, Replacement, Knee
• Arthroscopy
• Decision Support Techniques
• Humans
• Patient Selection
• Tibial Meniscus Injuries/diagnostic imaging
• Tibial Meniscus Injuries/therapy

• Animals
• Arthroscopy/instrumentation
• Arthroscopy/methods
• Cattle
• Humans
• Knee Injuries/surgery
• Menisci, Tibial/surgery
• Models, Anatomic
• Suture Anchors
• Suture Techniques

• Humans
• Knee Injuries
• Meniscectomy
• Menisci, Tibial

• 3D MRI
• Arthroscopy
• Medial meniscus posterior root tear
• Meniscal extrusion
• Transtibial pullout repair

Transtibial pullout repair for posterior meniscus root tear is widely performed to restore meniscal function. However, it is sometimes technically difficult to pass the suture through the posterior medial meniscus root in narrow joint space. To address this limitation, a new suture technique using an all-inside meniscal suture device through the tibial tunnel was proposed. The purpose of the present study was to compare the biomechanical properties of a meniscus-suture construct prepared using an all-inside meniscal suture device and those of the construct prepared using conventional suture techniques.

A total of 18 fresh-frozen porcine medial menisci were used and randomly divided into three groups according to the type of suturing technique applied. Three suturing methods were evaluated: suturing with all-inside meniscal suture device, single simple suture, and double simple sutures. All specimens were subjected to cyclic loading of 300 cycles followed by a load-to-failure test. The displacement after cyclic loading, the ultimate failure load, and the mode of failure were evaluated.

There was no significant difference among the three suturing techniques regarding both displacement after cyclic loading and ultimate failure load. Suture breakage was the most common failure mode in each group.

The biomechanical properties of meniscus-suture construct with the all-inside meniscal suture device were equivalent to those obtained using conventional suture techniques. Our results suggest that pullout repair using the all-inside meniscal suture device through the tibial tunnel could serve as an alternative suture technique for the repair of posterior meniscus root tears.

• alignment
• meniscus
• root tear
• survivorship

• ACL reconstruction
• knee kinematics
• lateral meniscus
• posterior root tear
• pullout suture

• Expected tension
• Medial meniscus
• Posterior root tear
• Pullout repair
• Simple fixation technique

• Arthroscopy
• Bone tunnel
• Posterior cruciate ligament
• Posterior root of the medial meniscus

• knee
• meniscus
• posterior root tear
• pullout suture
• second-look examination

• Curved guide
• Medial meniscus
• Root tear
• Soft suture anchor

• Bony recess
• Medial meniscus posterior root
• Posterior cruciate ligament

• Medial meniscus
• Modified Mason–Allen technique
• Posterior root tear
• Pullout repair

• Knotless
• Medial meniscus
• Repair
• Root tear
• Suture anchor

• Knee
• Medial meniscus
• Osteoarthritis
• Root tear

• Contact area
• Contact pressure
• Lateral meniscal root tear
• Meniscofemoral ligaments
• Root repair
• Tekscan pressure sensors

• Anterior Cruciate Ligament Injuries/physiopathology
• Anterior Cruciate Ligament Injuries/surgery
• Anterior Cruciate Ligament Reconstruction
• Biomechanical Phenomena
• Cadaver
• Femur/physiopathology
• Humans
• Knee Injuries/physiopathology
• Knee Joint/physiopathology
• Ligaments, Articular/physiopathology
• Male
• Menisci, Tibial/physiopathology
• Middle Aged
• Pressure
• Range of Motion, Articular
• Rupture
• Tibia/physiopathology
• Tibial Meniscus Injuries/physiopathology