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Hampton M, Ali F, Nicolaou N, Ajuied A. The management of isolated meniscal tears in skeletally immature children. An international expert consensus. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 39444332 DOI: 10.1002/ksa.12493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 07/24/2024] [Accepted: 07/31/2024] [Indexed: 10/25/2024]
Abstract
PURPOSE The prevalence and appreciation of meniscal tears in children have increased in both number and complexity. There is currently a paucity of high-quality evidence that can guide surgeons in treating skeletally immature patients with meniscal injuries. The aim of this study was to develop comprehensive recommendations for the management of isolated meniscal tears in skeletally immature children. METHODS An international, two-round, modified Delphi consensus was completed. Included 'experts' were identified as having an established adult knee practice, including children and either: (1) Faculty at an international paediatric knee conference, (2) Active members of complex national paediatric multi-disciplinary groups or (3) Members of faculty on recognised national/international instructional courses aimed at teaching the management of meniscal lesions to knee surgeons. The currently available literature was reviewed, and areas of poor quality, inconclusive or absent evidence were examined and formed the focus of the study. A threshold of 70% was used to define consensus for our study based on other similar Delphi consensus studies in the literature. RESULTS A total of 43 experts (Round 1) and 41 experts (Round 2) took part in the Delphi study, including surgeons from Europe, the United States of America and South America. 34 statements were identified exploring three main domains-clinical assessment, management and complex tears (bucket handle, discoid and radial). Following Round 1, consensus was reached on 17 (50%) statements; subsequently, after completion of Round 2, consensus was reached on 28 (82%) statements, leaving six (18%) with no consensus. The areas of no consensus included investigation of painless clicking, the most sensitive clinical test for meniscal pathology, treatment of small radial tears (less than 1/3 width), ability to reduce chronic bucket handle tears and timing of surgery. CONCLUSIONS This is the first modified Delphi consensus that provides evidence for surgeons treating skeletally immature children with isolated meniscal tears. A valuable level of consensus was reached on the assessment and management of simple and specialist meniscal tears. These consensus statements can both inform clinical practice and be used in the development of further high-quality research studies. LEVEL OF EVIDENCE Level V.
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Affiliation(s)
- Matthew Hampton
- Sheffield Teaching Hospitals NHS Foundation Trust, Sheffiel, UK
- Sheffield Childrens Hospital, Sheffield, UK
| | - Fazal Ali
- Sheffield Childrens Hospital, Sheffield, UK
| | | | - Adil Ajuied
- Guy's and St Thomas' NHS Foundation Trust, London, UK
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Mazy D, Lu D, Leclerc S, Laor B, Wang J, Pinvicy A, Moldovan F, Nault ML. Animal models used in meniscal repair research from ex vivo to in vivo: A systematic review. J Orthop 2024; 55:23-31. [PMID: 38638113 PMCID: PMC11021913 DOI: 10.1016/j.jor.2024.03.038] [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: 03/14/2024] [Accepted: 03/30/2024] [Indexed: 04/20/2024] Open
Abstract
This systematic review, registered with Prospero, aims to identify an optimal animal model for meniscus repair research, moving from ex vivo experimentation to in vivo studies. Data sources included PubMed, Medline, all Evidence-Based Medicine Reviews, Web of Science, and Embase searched in March 2023. Studies were screened using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Extracted data including animal model, type of experiment, type of tear, surgical techniques, and measured outcomes, were recorded, reviewed, and analyzed by four independent reviewers. The SYstematic Review Centre for Laboratory animal Experimentation (SYRCLE) Rob tool was used for critical appraisal and risk of bias assessment. Out of 11,719 studies, 72 manuscripts were included for data extraction and analysis; 41 ex vivo extra-articular studies, 20 ex vivo intra-articular studies, and only 11 in vivo studies. Six animal models were employed: porcine, bovine, lapine, caprine, canine, and ovine. Longitudinal lesions were the most frequently studied tear pattern and sutures the most common repair technique. Studied outcomes focused mainly on biomechanical assessments and gross observations. This systematic review can guide researchers in their choice of animal model for meniscus repair research; it highlighted the strengths of the porcine, caprine, and bovine models for ex vivo cadaveric studies, while the porcine and caprine models were found to be more suited to in vivo studies due to their similarities with human anatomy. Research teams should familiarize themselves with the advantages and disadvantages of various animal models before initiating protocols to improve standardization in the field.
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Affiliation(s)
- David Mazy
- CHU Sainte-Justine, 7905-3175 Côte Ste-Catherine, Montréal, QC, H3T 1C5, Canada
- Department of Surgery, Université de Montréal, 2900 boul. Edouard-Montpetit, Montreal, QC, H3T 1J4, Canada
| | - Daisy Lu
- CHU Sainte-Justine Azrieli Research Center, 7905-3175 Côte Ste-Catherine, Montréal, QC H3T 1C5, Canada
| | - Sebastien Leclerc
- CHU Sainte-Justine Azrieli Research Center, 7905-3175 Côte Ste-Catherine, Montréal, QC H3T 1C5, Canada
| | - Boaz Laor
- Faculty of Medecine, McGill university, 1650 Cedar Ave, Montreal, Quebec, H3G 1A4, Canada
| | - Jessica Wang
- CHU Sainte-Justine Azrieli Research Center, 7905-3175 Côte Ste-Catherine, Montréal, QC H3T 1C5, Canada
| | - Alix Pinvicy
- CHU Sainte-Justine, 7905-3175 Côte Ste-Catherine, Montréal, QC, H3T 1C5, Canada
| | - Florina Moldovan
- CHU Sainte-Justine Azrieli Research Center, 7905-3175 Côte Ste-Catherine, Montréal, QC H3T 1C5, Canada
| | - Marie-Lyne Nault
- CHU Sainte-Justine, 7905-3175 Côte Ste-Catherine, Montréal, QC, H3T 1C5, Canada
- Department of Surgery, Université de Montréal, 2900 boul. Edouard-Montpetit, Montreal, QC, H3T 1J4, Canada
- CIUSSS Hôpital du Sacré-Cœur de Montréal (HSCM), Department of Orthopedic surgery, 5400 boul. Gouin Ouest, Montreal, QC, H4J 1C5, Canada
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Schippers P, Buschmann V, Wunderlich F, Afghanyar Y, Fischer S, Wegner E, Drees P, Gercek E, Eckhard L. Bucket-Handle Meniscal Tears Might Not Be an Urgency: The Time to Meniscus Repair Does Not Seem to Affect the Mid-Term Outcome-A Retrospective Study of Sixty Tears with a Mean Follow-Up of 6 Years. J Clin Med 2024; 13:3048. [PMID: 38892759 PMCID: PMC11172473 DOI: 10.3390/jcm13113048] [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: 04/17/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024] Open
Abstract
Background: Bucket-handle meniscal tears are mostly treated arthroscopically. However, there is no clear evidence as to whether the time to surgery impacts the outcome and whether or not lesions should be treated urgently. Methods: Sixty patients were interviewed about the current status of their knee with a mean follow-up of 6.1 years (SD = 3.5). Forty-one patients underwent meniscus repair, and fifteen patients received partial resections. The primary outcome was the rate of reoperation after meniscus repair. Secondary outcomes were pain at rest and during exercise, return to sports, and Tegner and Lysholm scores. Results: The average time to surgery was 14.4 days, with no significant impact of surgical timing on the rate of reoperation. Furthermore, no significant differences were found in pain levels, return to sports, or Tegner and Lysholm scores based on the timing of surgery. Conclusions: In our cohort, the time to surgery was not a prognostic factor for the reoperation rate or postoperative outcome in repairing bucket-handle meniscal tears. Therefore, arthroscopic repair should not be performed in an emergency setting but conducted after careful planning by experienced arthroscopy surgeons. Regarding the return to sports, postoperative factors such as rehabilitation protocols or surgical techniques could be more important than the time to surgery.
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Affiliation(s)
- Philipp Schippers
- Department of Orthopedics and Traumatology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (V.B.); (F.W.); (Y.A.); (E.W.); (P.D.); (E.G.); (L.E.)
| | - Victoria Buschmann
- Department of Orthopedics and Traumatology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (V.B.); (F.W.); (Y.A.); (E.W.); (P.D.); (E.G.); (L.E.)
| | - Felix Wunderlich
- Department of Orthopedics and Traumatology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (V.B.); (F.W.); (Y.A.); (E.W.); (P.D.); (E.G.); (L.E.)
| | - Yama Afghanyar
- Department of Orthopedics and Traumatology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (V.B.); (F.W.); (Y.A.); (E.W.); (P.D.); (E.G.); (L.E.)
| | - Sebastian Fischer
- Department of Foot and Ankle Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt Am Main, 60389 Frankfurt, Germany
| | - Erik Wegner
- Department of Orthopedics and Traumatology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (V.B.); (F.W.); (Y.A.); (E.W.); (P.D.); (E.G.); (L.E.)
| | - Philipp Drees
- Department of Orthopedics and Traumatology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (V.B.); (F.W.); (Y.A.); (E.W.); (P.D.); (E.G.); (L.E.)
| | - Erol Gercek
- Department of Orthopedics and Traumatology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (V.B.); (F.W.); (Y.A.); (E.W.); (P.D.); (E.G.); (L.E.)
| | - Lukas Eckhard
- Department of Orthopedics and Traumatology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (V.B.); (F.W.); (Y.A.); (E.W.); (P.D.); (E.G.); (L.E.)
- Praxis für Gelenkchirurgie Bad Kreuznach, 55543 Bad Kreuznach, Germany
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Bachmaier S, Krych AJ, Smith PA, Feucht MJ, LaPrade RF, Wijdicks CA. Biomechanical Performance of Transtibial Pull-Out Posterior Horn Medial Meniscus Root Repair Is Improved With Knotless Adjustable Suture Anchor-Based Fixation. Orthop J Sports Med 2024; 12:23259671241239575. [PMID: 38584990 PMCID: PMC10998488 DOI: 10.1177/23259671241239575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 10/01/2023] [Indexed: 04/09/2024] Open
Abstract
Background While posterior medial meniscus root (PMMR) techniques have evolved, there remains a need to both optimize repair strength and improve resistance to cyclic loading. Hypothesis Adjustable tensioning would lead to higher initial repair strength and reduce displacement with cyclic loading compared with previously described transtibial pull-out repair (TPOR) fixation techniques. Study Design Controlled laboratory study. Methods A total of 56 porcine medial menisci were used. Eight intact specimens served as a control for the native meniscus. For the others, PMMR tears were created and repaired with 6 different TPOR techniques (8 in each group). Fixed PMMR repairs were executed using 4 different suture techniques (two No. 2 cinch sutures, two cinch tapes, two No. 2 simple sutures, and two No. 2 sutures in a Mason-Allen configuration) all tied over a cortical button. Adjustable PMMR repairs using Mason-Allen sutures were fixed with an adjustable soft tissue anchor fixation tensioned at either 80 N or 120 N. The initial force, stiffness, and relief displacement of the repairs were measured after fixation. Repair constructs were then cyclically loaded, with cyclic displacement and stiffness measured after 1000 cycles. Finally, the specimens were pulled to failure. Results The PMMR repaired with the 2 cinch sutures fixed technique afforded the lowest (P < .001) initial repair load, stiffness, and relief displacement. The adjustable PMMR repairs achieved a higher initial repair load (P < .001) and relief displacement (P < .001) than all fixed repairs. The 2 cinch sutures fixed technique showed an overall higher cyclic displacement (P < .028) and was completely loose compared with the native meniscus functional zone. Repairs with adjustable intratunnel fixation showed displacement with cyclic loading similar to the native meniscus. With cyclic loading, the Mason-Allen adjustable repair with 120 N of tension showed less displacement (P < .016) than all fixed repairs and a stiffness comparable to the fixed Mason-Allen repair. The fixed Mason-Allen technique demonstrated a higher ultimate load (P < .007) than the adjustable Mason-Allen techniques. All repairs were less stiff, with lower ultimate failure loads, than the native meniscus root attachment (P < .0001). Conclusion Adjustable TPOR led to considerably higher initial repair load and relief displacement than other conventional fixed repairs and restricted cyclic displacement to match the native meniscus function. However, the ultimate failure load of the adjustable devices was lower than that of a Mason-Allen construct tied over a cortical button. All repair techniques had a significantly lower load to failure than the native meniscus root. Clinical Relevance Knotless adjustable PMMR repair based on soft anchor fixation results in higher tissue compression and less displacement, but the overall clinical significance on healing rates remains unclear.
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Affiliation(s)
- Samuel Bachmaier
- Arthrex Department of Orthopedic Research, Munich, Germany
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Germany
| | - Aaron J. Krych
- Department of Orthopedic Surgery and Sports Medicine Center, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Matthias J. Feucht
- Department of Orthopaedic Surgery Paulinenhilfe, Diakonie Klinikum, Stuttgart, Germany
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Massey PA, Scalisi W, Montgomery C, Daily D, Robinson J, Solitro GF. Biomechanical Comparison of All-Suture, All-Inside Meniscus Repair Devices in a Human Cadaveric Meniscus Model. Cartilage 2024:19476035241234315. [PMID: 38426452 DOI: 10.1177/19476035241234315] [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] [Indexed: 03/02/2024] Open
Abstract
OBJECTIVE Newer all-suture, all-inside meniscus repair devices utilize soft suture anchors. The purpose of this study was to compare the biomechanical performance of 4 meniscus repair devices in human cadaver menisci: the JuggerStitch (all-suture, all-inside), the FiberStitch (all-suture, all-inside), a polyether ether ketone (PEEK) all-inside, and an inside-out device. DESIGN Forty human cadaver menisci were tested after creating 20 mm longitudinal tears in the posterior meniscus. Each knee was randomized to 1 of 4 meniscus repair groups: JuggerStitch (all-suture, all-inside), FiberStitch (all-suture, all-inside), FAST-FIX 360 (PEEK-based anchor all-inside), and inside-out (with BroadbandTM tape meniscus needles). For each meniscus, 2 devices were used to prepare vertical mattress repair construct. The specimens were tested by pre-conditioning 20 cycles between 5 N and 30 N and then the tear diastasis was measured, followed by distraction to failure phase after imposing a displacement at a rate of 0.5 mm/s. RESULTS Ten menisci were tested in each of the 4 groups. After pre-conditioning, there was no significant difference in the gap formation among groups (P = 0.212). The average failure load for the JuggerStitch, FiberStitch, PEEK all-inside, and inside-out was 384 N, 311 N, 207 N, and 261 N, respectively, with a significant difference between groups (P = 0.034). Post hoc analysis showed the JuggerStitch failure load was higher than the PEEK all-inside and inside-out (P = 0.005, and P = 0.045, respectively). There was no significant difference between the failure load of the JuggerStitch and FiberStitch (P = 0.225). CONCLUSION The JuggerStitch all-suture device, FiberStitch all-suture device, PEEK all-inside, and inside-out devices have similar biomechanical properties for gapping and stiffness. The JuggerStitch all-suture, all-inside device has superior failure load compared with the PEEK all-inside and inside-out repair for longitudinal meniscus tear repair.
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Affiliation(s)
- Patrick A Massey
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA
| | - Wayne Scalisi
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA
| | - Carver Montgomery
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA
| | - Drayton Daily
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA
| | - James Robinson
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA
| | - Giovanni F Solitro
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA
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Bachmaier S, Krych AJ, Smith PA, Herbort M, Ritter D, LaPrade RF, Wijdicks CA. Primary Fixation and Cyclic Performance of Single-Stitch All-Inside and Inside-Out Meniscal Devices for Repairing Vertical Longitudinal Meniscal Tears. Am J Sports Med 2022; 50:2705-2713. [PMID: 35787211 DOI: 10.1177/03635465221107086] [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] [Indexed: 01/31/2023]
Abstract
BACKGROUND Primary device fixation and the resistance against gap formation during repetitive loading influence the quality of meniscal repair. There are limited biomechanical data comparing primary tensioning and cyclic behavior of all-inside versus inside-out repair. HYPOTHESIS All-inside devices provide higher initial load on the meniscal repair than inside-out fixation, and stiffer constructs show higher resistance against gap formation during cyclic loading. STUDY DESIGN Controlled laboratory study. METHODS In total, 60 longitudinal bucket-handle tears in human cadaveric menisci were created and repaired with a single stitch and randomly assigned to 4 all-inside groups (TrueSpan, FastFix 360, Stryker AIR, FiberStich) and 2 inside-out groups (suture repair [IO-S], suture tape [IO-ST]). Residual load after repair tensioning (50 N) and relief displacement were measured. Constructs underwent cyclic loading between 2 and 20 N over 500 cycles (0.75 Hz) with cyclic stiffness, gap formation, and final peak elongation measured. Ultimate load and stiffness were analyzed during pull to failure (3.15 mm/s). RESULTS All-inside repair demonstrated significantly higher primary fixation strength than inside-out repair. The significantly highest load (mean ± SD; 20.1 ± 0.9 N; P < .037) and relief displacement (-2.40 ± 0.32 mm; P < .03) were for the knotless soft anchoring FiberStich group. The lowest initial load (9.0 ± 1.5 N; P < .001) and relief displacement (-1.39 ± 0.26 mm; P < .045) were for the IO-S repair group. The final gap formation (500th cycle) of FiberStich (0.75 ± 0.37 mm; P < .02) was significantly smaller than others and that of the IO-S (1.47 ± 0.33 mm; P < .045) significantly larger. The construct stiffness of the FiberStich and IO-ST groups was significantly greater at the end of cyclic testing (16.7 ± 0.80 and 15.5 ± 1.42 N/mm; P < .042, respectively) and ultimate failure testing (23.4 ± 3.6 and 20.6 ± 2.3 N/mm; P < .005). The FastFix 360 (86.4 ± 4.8 N) and Stryker AIR (84.4 ± 4.6 N) groups failed at a significantly lower load than the IO-S group (P < .02) with loss of anchor support. The FiberStich (146.8 ± 23.4 N), TrueSpan (142.0 ± 17.8 N), and IO-ST (139.4 ± 7.3 N) groups failed at significantly higher loads (P < .02) due to suture tearing. CONCLUSION Overall, primary fixation strength of inside-out meniscal repair was significantly lower than all-inside repair in this cadaveric tissue model. Although absolute differences among groups were small, meniscal repairs with higher construct stiffness (IO-ST, FiberStich) demonstrated increased resistance against gap formation and failure load. CLINICAL RELEVANCE Knotless single-stitch all-inside meniscal repair with a soft anchor resulted in less gapping, but the overall clinical significance on healing rates remains unclear.
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Affiliation(s)
| | - Aaron J Krych
- Department of Orthopedic Surgery and Sports Medicine Center, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | - Daniel Ritter
- Department of Orthopedic Research, Arthrex, Munich, Germany
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Müller S, Schwenk T, de Wild M, Dimitriou D, Rosso C. Increased Construct Stiffness With Meniscal Repair Sutures and Devices Increases the Risk of Cheese-Wiring During Biomechanical Load-to-Failure Testing. Orthop J Sports Med 2021; 9:23259671211015674. [PMID: 34189149 PMCID: PMC8209834 DOI: 10.1177/23259671211015674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 04/14/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Cheese-wiring, the suture that cuts through the meniscus, is a well-known issue in meniscal repair. So far, contributing factors are neither fully understood nor sufficiently studied. Hypothesis/Purpose: To investigate whether the construct stiffness of repair sutures and devices correlates with suture cut-through (cheese-wiring) during load-to-failure testing. Study Design: Controlled laboratory study. Methods: In 131 porcine menisci, longitudinal bucket-handle tears were repaired using either inside-out sutures (n = 66; No. 0 Ultrabraid, 2-0 Orthocord, 2-0 FiberWire, and 2-0 Ethibond) or all-inside devices (n = 65; FastFix360, Omnispan, and Meniscal Cinch). After cyclic loading, load-to-failure testing was performed. The mode of failure and construct stiffness were recorded. A receiver operating characteristic curve analysis was performed to define the optimal stiffness threshold for predicting meniscal repair failure by cheese-wiring. The 2-tailed t test and analysis of variance were used to test significance. Results: Loss of suture fixation was the most common mode of failure in all specimens (58%), except for the Omnispan, which failed most commonly because of anchor pull-through. The Omnispan demonstrated the highest construct stiffness (30.8 ± 3.5 N/mm), whereas the Meniscal Cinch (18.0 ± 8.8 N/mm) and Ethibond (19.4 ± 7.8 N/mm) demonstrated the lowest construct stiffness. The Omnispan showed significantly higher stiffness compared with the Meniscal Cinch (P < .001) and Ethibond (P = .02), whereas the stiffness of the Meniscal Cinch was significantly lower compared with that of the FiberWire (P = .01), Ultrabraid (P = .04), and FastFix360 (P = .03). While meniscal repair with a high construct stiffness more often failed by cheese-wiring, meniscal repair with a lower stiffness failed by loss of suture fixation, knot slippage, or anchor pull-through. Meniscal repair with a stiffness >26.5 N/mm had a 3.6 times higher risk of failure due to cheese-wiring during load-to-failure testing (95% CI, 1.4-8.2; P < .0001). Conclusion: Meniscal repair using inside-out sutures and all-inside devices with a higher construct stiffness (>26.5 N/mm) was more likely to fail through suture cut-through (cheese-wiring) than that with a lower stiffness (≤26.5 N/mm). Clinical Relevance: This is the first study investigating the impact of construct stiffness on meniscal repair failure by suture cut-through (cheese-wiring).
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Affiliation(s)
- Sebastian Müller
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Tanja Schwenk
- University of Basel, Basel, Switzerland.,Department of Medical Oncology, Kantonsspital Aarau, Aarau, Switzerland
| | - Michael de Wild
- Institute for Medical Engineering and Medical Informatics, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Dimitris Dimitriou
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Claudio Rosso
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland.,Shoulder and Elbow Unit, ARTHRO Medics, Basel, Switzerland
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Examining Techniques for Treatment of Medial Meniscal Ramp Lesions During Anterior Cruciate Ligament Reconstruction: A Systematic Review. Arthroscopy 2020; 36:2921-2933. [PMID: 32674943 DOI: 10.1016/j.arthro.2020.05.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to systematically review the clinical outcomes and adverse events among different techniques for treatment of medial meniscal ramp lesions performed in conjunction with anterior cruciate ligament (ACL) reconstruction. METHODS A systematic review was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. PubMed, Cochrane Reviews, Web of Science, and Medline databases were searched for studies examining clinical outcomes after surgical treatment of ramp lesions. Studies were selected if they met the following criteria: (1) evaluation of the outcome of surgical repair of meniscal ramp lesions, (2) injuries associated with ACL tears, (3) minimum 6-month follow up, (4) publication in a peer-reviewed journal, and (5) English language or translation readily available. RESULTS Seven studies met inclusion criteria (485 patients; mean age 27.1 years [range 12 to 59]; mean follow-up 26.9 months [range 8 to 40]). Two all-inside techniques (suture-hook and an all-inside meniscus repair device) in addition to abrasion and trephination alone were analyzed. Each technique demonstrated significant increases in postoperative Lysholm and International Knee Documentation Committee (IKDC) scores, reaching the established minimal clinically important difference (MCID) for each patient reported outcome. Incomplete healing was documented in 12.1% to 12.9% of cases in which the tear was not repaired at the time of ACL reconstruction, 2.3% to 11.7% in cases using the suture-hook for repair, and 10.8% to 15% in the all-inside meniscus repair device group. CONCLUSION This systematic review demonstrated that several approaches used to treat medial meniscal ramp lesions associated with ACL tears lead to positive clinical outcomes. Small, stable tears <2 cm in size may be managed with debridement alone. For larger, more unstable lesions, an all-inside approach has demonstrated positive clinical outcomes. Prospective trials are needed to determine the best management for meniscal ramp lesions. Additionally, further research is needed to better understand how to minimize the risk of technique-related complications (e.g., improper implant deployment). LEVEL OF EVIDENCE Level IV, systematic review of level II, III, and IV studies.
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Hang G, Yew AKS, Chou SM, Wong YR, Tay SC, Lie DTT. Biomechanical comparison of vertical suture techniques for repairing radial meniscus tear. J Exp Orthop 2020; 7:77. [PMID: 33025241 PMCID: PMC7538523 DOI: 10.1186/s40634-020-00296-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/24/2020] [Indexed: 02/07/2023] Open
Abstract
Purpose The aim of this study was to (1) develop suture techniques in repairing radial meniscal tear; (2) to compare the biomechanical properties of the proposed repair techniques with the conventional double horizontal technique. Methods Thirty-six fresh-frozen porcine medial menisci were randomly assigned into four groups and a complete tear was made at the midline of each meniscus. The menisci were subsequently repaired using four different repair techniques: double vertical (DV), double vertical cross (DVX), hybrid composing one vertical and one horizontal stitch, and conventional double horizontal (DH) suture technique with suturing parallel to the tibia plateau. The conventional double horizontal group was the control. The repaired menisci were subjected to cyclic loading followed by the load to failure testing. Gap formation and strength were measured, stiffness was calculated, and mode of failure was recorded. Results Group differences in gap formation were not statistically significant at 100 cycles (p = .42), 300 cycles (p = .68), and 500 cycles (p = .70). A trend was found toward higher load to failure in DVX (276.8 N, p < .001), DV (241.5 N, p < .001), and Hybrid (237.6 N, p < .001) compared with DH (148.5 N). Stiffness was also higher in DVX (60.7 N/mm, p < .001), DV (55.3 N/mm, p < .01), and Hybrid (52.1 N/mm, p < .01), than DH group (30.5 N/mm). Tissue failure was the only failure mode observed in all specimens. Conclusion Our two proposed vertical suture techniques, as well as the double vertical technique, had superior biomechanical properties than the conventional technique as demonstrated by higher stiffness and higher strength.
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Affiliation(s)
- Guanqi Hang
- Department of Orthopaedic Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore.
| | - Andy Khye Soon Yew
- Department of Orthopaedic Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore
| | - Siaw Meng Chou
- School of Mechanical & Aerospace Engineering, College of Engineering, Nanyang Technological University, 50 Nanyang Ave, Singapore, 639798, Singapore
| | - Yoke Rung Wong
- Department of Hand Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore
| | - Shian Chao Tay
- Department of Hand Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore
| | - Denny Tijauw Tjoen Lie
- Department of Orthopaedic Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore
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10
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Rosso C, Weber T, Dietschy A, de Wild M, Müller S. Three anchor concepts for rotator cuff repair in standardized physiological and osteoporotic bone: a biomechanical study. J Shoulder Elbow Surg 2020; 29:e52-e59. [PMID: 31594725 DOI: 10.1016/j.jse.2019.07.032] [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: 02/13/2019] [Revised: 07/16/2019] [Accepted: 07/17/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Previous biomechanical studies used single-pull destructive tests in line with the anchor and are limited by a great variability of bone density of cadaver samples. To overcome these limitations, a more physiological test setting was provided using titanium, bioresorbable, and all-suture anchors. METHODS In this controlled laboratory study, 3 anchor constructs were divided into 2 groups: physiological and osteoporotic. Sixty standardized artificial bone specimens (=10 for each anchor in each group) were used for biomechanical testing. The anchors were inserted at a 45° angle as during surgery. Cyclic loading for 1000 cycles followed by ultimate load-to-failure (ULTF) testing was performed. Elongation, ultimate load at failure, and the mode of failure were noted. RESULTS In the physiological group, the ULTF for the all-suture anchor (mean [standard deviation], 632.9 [96.8 N]) was found to be significantly higher than for the other anchors (titanium, 497.1 [50.5] N, and bioresorbable, 322.4 [3.1 N], P < .0001). The titanium anchor showed a significantly higher ULTF than the bioresorbable anchor (P < .0001). In the osteoporotic group, the all-suture anchor again showed a higher ULTF compared to the bioresorbable anchor (500.9 [50.6] N vs. 315.1 [11.3] N, P < .0001). In the osteoporotic group, cyclic loading revealed a higher elongation after 1000 loading cycles for the bioresorbable (0.40 [0.12] mm) compared to the titanium (0.22 [0.11] mm; P = .01) as well as the all-suture anchor (0.19 [0.15] mm, P = .003). CONCLUSION Regarding ULTF, the all-suture anchor outperformed the other anchors in physiological bone, but in osteoporotic bone, significance was reached only compared to the bioresorbable anchor. Although cyclic loading revealed significant differences, these might not be clinically relevant.
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Affiliation(s)
- Claudio Rosso
- ARTHRO Medics, Shoulder and Elbow Center, Basel, Switzerland; University of Basel, Basel, Switzerland.
| | - Timo Weber
- University of Basel, Basel, Switzerland; Orthopaedicum Loerrach, Loerrach, Germany
| | - Alain Dietschy
- School of Life Sciences, Institute for Medical and Analytical Technologies, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
| | - Michael de Wild
- School of Life Sciences, Institute for Medical and Analytical Technologies, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
| | - Sebastian Müller
- University of Basel, Basel, Switzerland; Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland
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11
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Saltzman BM, Cotter EJ, Wang KC, Rice R, Manning BT, Yanke AB, Forsythe B, Verma NN, Cole BJ. Arthroscopically Repaired Bucket-Handle Meniscus Tears: Patient Demographics, Postoperative Outcomes, and a Comparison of Success and Failure Cases. Cartilage 2020; 11:77-87. [PMID: 29957019 PMCID: PMC6921958 DOI: 10.1177/1947603518783473] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To define patient demographics, preoperative, and intraoperative surgical variables associated with successful or failed repair of bucket-handle meniscal tears. DESIGN All patients who underwent arthroscopic repair of a bucket-handle meniscus tear at a single institution between May 2011 and July 2016 with minimum 6-month follow-up were retrospectively identified. Patient demographic, preoperative (including imaging), and operative variables were collected and evaluated. A Kaplan-Meier curve was generated to demonstrate meniscus repair survivorship. RESULTS In total, 75 patients (78 knees) with an average age of 26.53 ± 10.67 years met inclusion criteria. The average follow-up was 23.41 ± 16.43 months. Fifteen knees (19.2%) suffered re-tear of the repaired meniscus at an average 12.24 ± 9.50 months postoperatively. Survival analysis demonstrated 93.6% survival at 6 months, 84.6% survival at 1 year, 78.4% survival at 2 years, and 69.9% survival at 3 years. There was significant improvement from baseline to time of final follow-up in all patient-reported outcome (P < 0.05) except Marx score (P = 0.933) and SF-12 Mental Subscale (P = 0.807). The absence of other knee pathology (including ligament tear, contralateral compartment meniscal tear, or cartilage lesions) noted intraoperatively was the only variable significantly associated with repair failure (P = 0.024). Concurrent anterior cruciate ligament reconstruction (vs. no concurrent anterior cruciate ligament reconstruction) trended toward significance (P = 0.059) as a factor associated with successful repair. CONCLUSIONS With the exception of the absence of other knee pathology (including ligament tear, contralateral compartment meniscal tear, or cartilage lesions) noted intraoperatively, no other variables were significantly associated with re-tear. The results are relatively durable with 84.6% survival at 1 year. Surgeons should attempt meniscal repair when presented with a bucket-handle tear.
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Affiliation(s)
| | - Eric J. Cotter
- Georgetown University School of
Medicine, Washington, DC, USA
| | - Kevin C. Wang
- Northwestern University Feinberg School
of Medicine, Chicago, IL, USA
| | - Richard Rice
- Rush University Medical Center, Chicago,
IL, USA
| | | | | | | | | | - Brian J. Cole
- Rush University Medical Center, Chicago,
IL, USA,Brian J. Cole, Rush University Medical
Center, 1611 W Harrison St, Suite 300, Chicago, IL 60612, USA.
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12
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Müller S, Flury R, Zimmermann S, de Wild M, Fogerty S, Lafosse L, Bongiorno V, Rosso C. The new LassoLoop360° technique for biomechanically superior tissue grip. Knee Surg Sports Traumatol Arthrosc 2019; 27:3962-3969. [PMID: 31254030 DOI: 10.1007/s00167-019-05604-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 06/24/2019] [Indexed: 11/26/2022]
Abstract
PURPOSE Suprapectoral tenodesis is a frequently used technique for treating pathologies of the long head of the biceps brachii (LHBB) tendon. However, so far, no Gold Standard treatment exist. Hence, the arthroscopic LassoLoop360 (LL360) technique is introduced aiming to provide secure fixation and improved biomechanical properties. It was hypothesized, that the LL360 technique would show superior biomechanical response to cyclic loading and ultimate load-to-failure testing compared to the commonly used simple Lasso Loop (SLL). METHODS Twenty-two porcine superficial flexor digitorum tendons were prepared using a No. 2 suture according to either the SLL or the LL360 technique. Displacement after cyclic loading (1.000 cycles) between 5 and 30 N, ultimate load-to-failure (ULTF), mode of failure as well as the construct stiffness were tested. RESULTS Significantly less displacement was found in the LL360 group (SLL 2.25 ± 0.51 mm; LL360 1.67 ± 0.37 mm; p = 0.01). Ultimate Load to Failure was significantly higher in the LL360 (168.6 ± 29.6 N) as compared to the SLL (124.1 ± 25.8 N, p = 0.02). The LL360 also revealed a significant higher stiffness compared to the SLL (SLL 13.1 ± 0.9 N/mm vs. LL360 19.1 ± 1.0 N/mm, p < 0.001). The most common mode of failure was the suture cutting through the tendon, with a significantly less suture cutting through for the LL360 compared with the SLL (p < 0.05). CONCLUSION The LassoLoop360-technique offers superior biomechanical characteristics regarding the tendon-suture-interface compared to the SLL. In the initial healing phase, the suture-tendon-interface is the most vulnerable part of the tendon-suture-anchor construct, the aim of this new technique is to reduce this weakest part of the chain (Ponce et al., Am J Sports Med 39:188-194, 2011). This technique may therefore be beneficial for arthroscopic suprapectoral biceps tenodesis at the entrance of the bicipital groove.
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Affiliation(s)
- Sebastian Müller
- Department of Orthopaedics and Traumatology, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland.
- University of Basel, Petersplatz 1, 4003, Basel, Switzerland.
| | - Rebekka Flury
- University of Basel, Petersplatz 1, 4003, Basel, Switzerland
| | - Simon Zimmermann
- School of Life Sciences, Institute for Medical and Analytical Technologies, University of Applied Sciences Northwestern Switzerland, Gründenstrasse 40, 4132, Muttenz, Switzerland
| | - Michael de Wild
- School of Life Sciences, Institute for Medical and Analytical Technologies, University of Applied Sciences Northwestern Switzerland, Gründenstrasse 40, 4132, Muttenz, Switzerland
| | - Simon Fogerty
- Shoulder Clinic Calderdale and Huddersfield NHS Trust, Acre Street, Lindley, Huddersfield, HD3 3EA, UK
| | - Laurent Lafosse
- ALPS Surgery Institute, Clinique Générale, 4 Chemin de la Tour la Reine, 74000, Annecy, France
| | - Vito Bongiorno
- Polyclinique Notre Dame Draguignan, 345 Avenue Pierre Brossolette, 83300, Draguignan, France
| | - Claudio Rosso
- University of Basel, Petersplatz 1, 4003, Basel, Switzerland
- ARTHRO Medics, Shoulder and Elbow Center, Thannerstrasse 45, 4054, Basel, Switzerland
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Uzun E, Misir A, Kizkapan TB, Ozcamdalli M, Akkurt S, Guney A. Evaluation of Midterm Clinical and Radiographic Outcomes of Arthroscopically Repaired Vertical Longitudinal and Bucket-Handle Lateral Meniscal Tears. Orthop J Sports Med 2019; 7:2325967119843203. [PMID: 31157282 PMCID: PMC6512156 DOI: 10.1177/2325967119843203] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Background: Lateral meniscal tears in the stable knee are rare. There are few comparative
studies evaluating functional and radiological outcomes of vertical
longitudinal and bucket-handle lateral meniscal tears. Purpose: To evaluate the midterm clinical and radiological outcomes of
arthroscopically repaired traumatic vertical longitudinal and bucket-handle
lateral meniscal tears. Study Design: Case series; Level of evidence, 4. Methods: A total of 43 full-thickness lateral meniscal repairs, including 22 (51.2%)
for vertical longitudinal tears and 21 (48.8%) for bucket-handle tears, were
evaluated. A clinical assessment was performed according to the Barrett
criteria, and patient outcomes were measured with the Lysholm knee score,
Tegner activity scale, and overall satisfaction scale. Magnetic resonance
imaging was used as the radiological re-examination method preoperatively
and at final follow-up. A subgroup analysis examining isolated repair versus
repair with concurrent anterior cruciate ligament (ACL) reconstruction was
performed. Results: The mean follow-up period was 63.2 months (range, 24-86 months). Based on
clinical and radiological outcomes, 38 of the 43 repairs (88.3%) were
successful, and the remaining 5 (11.6%) cases were considered to be
failures. Overall, the combined results for both groups demonstrated an
improvement in the Lysholm score, Tegner score, and patient satisfaction.
There was no significant difference in the postoperative Lysholm score (91.4
vs 87.0, respectively; P = .223), Tegner score (5.4 vs 5.5,
respectively; P = .872), or patient satisfaction (7.2 vs
7.4, respectively; P = .624) between bucket-handle repair
and vertical longitudinal repair. The subgroup analysis demonstrated no
difference in outcome scores for isolated repair versus repair with
concurrent ACL reconstruction. Smoking was identified as a risk factor for
repair failure. Conclusion: Comparable clinical and radiological outcomes were obtained after vertical
longitudinal and bucket-handle lateral meniscal repairs using the all-inside
or hybrid suture technique with different suture configurations, regardless
of whether ACL reconstruction was performed. Smoking was identified as a
risk factor for failure.
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Affiliation(s)
- Erdal Uzun
- Department of Orthopaedics and Traumatology, Ordu University School of Medicine, Ordu, Turkey
| | - Abdulhamit Misir
- Department of Orthopaedics and Traumatology, Sanliurfa Training and Research Hospital, Sanliurfa, Turkey
| | - Turan Bilge Kizkapan
- Department of Orthopaedics and Traumatology, Bursa Cekirge State Hospital, Bursa, Turkey
| | - Mustafa Ozcamdalli
- Department of Orthopaedics and Traumatology, Ahi Evran University Training and Research Hospital, Kirsehir, Turkey
| | - Soner Akkurt
- Department of Sports Medicine, Erciyes University School of Medicine, Kayseri, Turkey
| | - Ahmet Guney
- Department of Orthopaedics and Traumatology, Erciyes University School of Medicine, Kayseri, Turkey
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Peterson J, Paschos NK, Richmond JC. Inside-Out Meniscal Repair in the Mid One-Third of the Menisci. OPER TECHN SPORT MED 2018. [DOI: 10.1053/j.otsm.2018.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Abstract
The rates of arthroscopic meniscus repair continue to increase with excellent reported outcomes. Complications, sometimes catastrophic, following meniscus repair may occur. The rate of postoperative complications may be reduced by adequate diagnosis, appropriate patient selection, meniscus repair selection, surgical techniques, and postoperative management. When complications occur, the provider must identify and take steps to rectify as well as prevent further complications from occurring. The purpose of this article is to detail the common diagnostic, technical, and postoperative pitfalls that may result in poor patient outcomes.
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Affiliation(s)
- Matthew H Blake
- Department of Orthopaedic Surgery and Sports Medicine, Avera McKennan Hospital and University Health Center, 911 East 20th Street, Suite 300, Sioux Falls, SD 57105, USA.
| | - Darren L Johnson
- Department of Orthopaedic Surgery, University of Kentucky School of Medicine, 740 South Limestone, K403, Lexington, KY 40536-0284, USA
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Spang Iii RC, Nasr MC, Mohamadi A, DeAngelis JP, Nazarian A, Ramappa AJ. Rehabilitation following meniscal repair: a systematic review. BMJ Open Sport Exerc Med 2018; 4:e000212. [PMID: 29682310 PMCID: PMC5905745 DOI: 10.1136/bmjsem-2016-000212] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2018] [Indexed: 02/01/2023] Open
Abstract
Objective To review existing biomechanical and clinical evidence regarding postoperative weight-bearing and range of motion restrictions for patients following meniscal repair surgery. Methods and data sources Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guideline, we searched MEDLINE using following search strategy: ((((“Weight-Bearing/physiology”[Mesh]) OR “Range of Motion, Articular”[Mesh]) OR “Rehabilitation”[Mesh])) AND (“Menisci, Tibial”[Mesh]). Additional articles were derived from previous reviews. Eligible studies were published in English and reported a rehabilitation protocol following meniscal repair on human. We summarised rehabilitation protocols and patients’ outcome among original studies. Results Seventeen clinical studies were included in this systematic review. There was wide variation in rehabilitation protocols among clinical studies. Biomechanical evidence from small cadaveric studies suggests that higher degrees of knee flexion and weight-bearing may be safe following meniscal repair and may not compromise the repair. An accelerated protocol with immediate weight-bearing at tolerance and early motion to non-weight-bearing with immobilising up to 6 weeks postoperatively is reported. Accelerated rehabilitation protocols are not associated with higher failure rates following meniscal repair. Conclusions There is a lack of consensus regarding the optimal postoperative protocol following meniscal repair. Small clinical studies support rehabilitation protocols that allow early motion. Additional studies are needed to better clarify the interplay between tear type, repair method and optimal rehabilitation protocol.
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Affiliation(s)
- Robert C Spang Iii
- Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Michael C Nasr
- Center for Advanced Orthopaedic Studies, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Amin Mohamadi
- Center for Advanced Orthopaedic Studies, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Joseph P DeAngelis
- Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Ara Nazarian
- Center for Advanced Orthopaedic Studies, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.,Department of Orthopaedic Surgery, Yerevan State Medical University, Yerevan, Armenia
| | - Arun J Ramappa
- Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
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17
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Yokoi H, Mae T, Iuchi R, Take Y, Tachibana Y, Shimomura K, Ohori T, Shino K, Yoshikawa H, Nakata K. Novel flat and wide meniscal repair material improves the ultimate load of knot breakage in a porcine trans-capsular meniscal repair model. J Exp Orthop 2017; 4:41. [PMID: 29260438 PMCID: PMC5736508 DOI: 10.1186/s40634-017-0114-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 11/30/2017] [Indexed: 11/10/2022] Open
Abstract
Background In the meniscal repair procedures, a high ultimate load capacity and low cyclic creep at the repair site are favorable and lead to good biological incorporation of the tear site after surgery. Previous biomechanical tensile tests of the meniscal sutures have identified the suture knot as the weakest point. We hypothesized that the strength of a suture knot depends on the suture shape, and therefore, we compared three differently shaped suture materials composed of the same material and quantity per length. The purpose of this study was to determine whether a novel flat and wide repair material (FWRM), which consists of braided multi-threads that are cross-sectionally flat and wide, improves the ultimate load of knot breakage in a biomechanical experiment using a porcine trans-capsular meniscal repair model. Methods Eighteen fresh-frozen porcine knees (n = 6 in each group) were used. A longitudinal tear in the middle segment of the medial meniscus was created and repaired with a trans-capsular inside-out method using the following suture materials: No. 2–0 braided polyester conventional suture, hollow suture, and FWRM. After the separation of the inner segment of the meniscus with leaving, the suture stability of the repaired menisci was biomechanically analyzed with a video camera system for widening after a cyclic load between 5 and 20 N was applied 300 times. Ultimate failure load and stiffness at 5 mm/ min were also analyzed. Results We found no significant difference in suture widening after cyclic load tests [conventional suture, mean 0.51 mm (S.D. 0.39 mm); hollow suture, mean 0.23 mm (S.D. 0.11 mm); and FWRM, mean 0.54 mm (S.D. 0.08 mm)]. The failure mode in all specimens was knot breakage. Compared with those of the other groups, the ultimate failure load of FWRM was statistically significantly higher in the load-to-failure tests (conventional suture, mean 58.8 N [S.D. 8.25 N]; hollow suture, mean 79.4 N [S.D. 10.2 N]; and FWRM, mean 97.4 N [S.D. 3.65 N]; p < 0.05). Conclusion FWRM improves the ultimate load of knot breakage without altering stability. This material may contribute to safe and stable meniscus repair.
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Affiliation(s)
- Hiroyuki Yokoi
- Medicine for Sports and Performing Arts, Department of Health and Sports Science, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Tatsuo Mae
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Ryo Iuchi
- Sports Orthopaedic Surgery Center, Yukioka Hospital, 2-2-3, Ukita, Kita-ku, Osaka, Osaka, 530-0021, Japan
| | - Yasuhiro Take
- Medicine for Sports and Performing Arts, Department of Health and Sports Science, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Yuta Tachibana
- Sports Orthopaedic Surgery Center, Yukioka Hospital, 2-2-3, Ukita, Kita-ku, Osaka, Osaka, 530-0021, Japan
| | - Kazunori Shimomura
- Medicine for Sports and Performing Arts, Department of Health and Sports Science, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Tomoki Ohori
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Konsei Shino
- Sports Orthopaedic Surgery Center, Yukioka Hospital, 2-2-3, Ukita, Kita-ku, Osaka, Osaka, 530-0021, Japan
| | - Hideki Yoshikawa
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Ken Nakata
- Medicine for Sports and Performing Arts, Department of Health and Sports Science, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan.
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18
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Marchetti DC, Phelps BM, Dahl KD, Slette EL, Mikula JD, Dornan GJ, Bucci G, Turnbull TL, Singleton SB. A Contact Pressure Analysis Comparing an All-Inside and Inside-Out Surgical Repair Technique for Bucket-Handle Medial Meniscus Tears. Arthroscopy 2017; 33:1840-1848. [PMID: 28754246 DOI: 10.1016/j.arthro.2017.04.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 03/24/2017] [Accepted: 04/03/2017] [Indexed: 02/02/2023]
Abstract
PURPOSE To directly compare effectiveness of the inside-out and all-inside medial meniscal repair techniques in restoring native contact area and contact pressure across the medial tibial plateau at multiple knee flexion angles. METHODS Twelve male, nonpaired (n = 12), fresh-frozen human cadaveric knees underwent a series of 5 consecutive states: (1) intact medial meniscus, (2) MCL tear and repair, (3) simulated bucket-handle longitudinal tear of the medial meniscus, (4) inside-out meniscal repair, and (5) all-inside meniscal repair. Knees were loaded with a 1,000-N axial compressive force at 5 knee flexion angles (0°, 30°, 45°, 60°, 90°), and contact area, mean contact pressure, and peak contact pressure were calculated using thin film pressure sensors. RESULTS No significant differences were observed between the inside-out and all-inside repair techniques at any flexion angle for contact area, mean contact pressure, and peak contact pressure (all P > .791). Compared with the torn meniscus state, inside-out and all-inside repair techniques resulted in increased contact area at all flexion angles (all P < .005 and all P < .037, respectively), decreased mean contact pressure at all flexion angles (all P < .007 and all P < .001, respectively) except for 0° (P = .097 and P = .39, respectively), and decreased peak contact pressure at all flexion angles (all P < .001, all P < .001, respectively) except for 0° (P = .080 and P = .544, respectively). However, there were significant differences in contact area and peak contact pressure between the intact state and inside-out technique at angles ≥45° (all P < .014 and all P < .032, respectively). Additionally, there were significant differences between the intact state and all-inside technique in contact area at 60° and 90° and peak contact pressure at 90° (both P < .005 and P = .004, respectively). Median values of intact contact area, mean contact pressure, and peak contact pressure over the tested flexion angles ranged from 498 to 561 mm2, 786 to 997 N/mm2, and 1,990 to 2,215 N/mm2, respectively. CONCLUSIONS Contact area, mean contact pressure, and peak contact pressure were not significantly different between the all-inside and inside-out repair techniques at any tested flexion angle. Both techniques adequately restored native meniscus biomechanics near an intact level. CLINICAL RELEVANCE An all-inside repair technique provided similar, native-state-restoring contact mechanics compared with an inside-out repair technique for the treatment of displaced bucket-handle tears of the medial meniscus. Thus, both techniques may adequately decrease the likelihood of cartilage degeneration.
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Affiliation(s)
| | - Brian M Phelps
- Steadman Philippon Research Institute, Vail, Colorado, U.S.A
| | - Kimi D Dahl
- Steadman Philippon Research Institute, Vail, Colorado, U.S.A
| | - Erik L Slette
- Steadman Philippon Research Institute, Vail, Colorado, U.S.A
| | - Jacob D Mikula
- Steadman Philippon Research Institute, Vail, Colorado, U.S.A
| | - Grant J Dornan
- Steadman Philippon Research Institute, Vail, Colorado, U.S.A
| | - Gabriella Bucci
- Steadman Philippon Research Institute, Vail, Colorado, U.S.A
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19
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Iuchi R, Mae T, Shino K, Matsuo T, Yoshikawa H, Nakata K. Biomechanical testing of transcapsular meniscal repair. J Exp Orthop 2017; 4:2. [PMID: 28124287 PMCID: PMC5267586 DOI: 10.1186/s40634-017-0075-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 01/13/2017] [Indexed: 11/16/2022] Open
Abstract
Background All of previous biomechanical studies on meniscal repair have examined the meniscus itself without synovial membrane and capsule, although in the clinical setting, the meniscal repair is generally performed including capsule. Therefore, biomechanical properties of transcapsular meniscal repair are unclear. Thus, this study aimed to clarify the biomechanical properties of transcapsular meniscal repair. Methods In 70 porcine femur–medial meniscus–tibia complexes with capsules, longitudinal meniscal tears were repaired using different suture techniques (inside-out or all-inside technique), suture methods (vertical or horizontal methods), and numbers of sutures (single or double). A cyclic loading test between 5 and 20 N for 300 cycles was performed followed by a load-to-failure test. Results Tears repaired by the all-inside technique presented significantly larger widening (0.88 ± 0.38 mm) than those by the inside-out technique (0.51 ± 0.39 mm) during the cyclic loading test (P = 0.035). The horizontal suture presented significantly lower ultimate failure load (62.5 ± 15.5 N) in the all-inside technique than in the vertical suture (79.7 ± 13.0 N; P = 0.018). The stacked suture had a significantly higher failure load (104.6 ± 12.5 N) than the parallel suture (83.3 ± 12.6 N; P = 0.001). Furthermore, the double suture presented significantly higher failure loads (83.3 ± 12.6 N and 104.6 ± 20.4 N) than the single suture with both inside-out (58.8 ± 8.3 N; P = 0.001) and all-inside (79.7 ± 13.0 N; P = 0.022) techniques. Conclusions Upon comparison of the suture techniques, the inside-out technique provided a more stable fixation at the repair site than the all-inside technique during the cyclic test. Among the suture methods, the vertical suture had more desirable biomechanical properties than the horizontal suture as demonstrated by smaller widening during the cyclic test and the larger load to failure. The stacked suture created a stronger fixation than the parallel suture. In terms of the number of sutures, the double suture had superior biomechanical properties compared with the single suture.
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Affiliation(s)
- Ryo Iuchi
- Sports Orthop. Center, Yukioka Hospital, Osaka, Japan.
| | - Tatsuo Mae
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Konsei Shino
- Sports Orthop. Center, Yukioka Hospital, Osaka, Japan
| | - Tomohiko Matsuo
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hideki Yoshikawa
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ken Nakata
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
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Ahn JH, Kim CH, Lee SH. Repair of the Posterior Third of the Meniscus During Meniscus Allograft Transplantation: Conventional Inside-Out Repair Versus FasT-Fix All-Inside Repair. Arthroscopy 2016; 32:295-305. [PMID: 26422707 DOI: 10.1016/j.arthro.2015.07.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 07/03/2015] [Accepted: 07/10/2015] [Indexed: 02/02/2023]
Abstract
PURPOSE To compare conventional inside-out (IO) repair and all-inside (AI) repair for the posterior third of the meniscus during meniscus allograft transplantation (MAT). METHODS Among the 64 enrolled patients, 31 patients underwent MAT with conventional IO repair, and 33 patients underwent MAT with AI repair using the FasT-Fix instrument for the posterior third of the meniscus allograft. All of the patients were retrospectively evaluated through clinical assessment at the last follow-up (54.3 months in the IO group and 55.4 months in the AI group) and through magnetic resonance imaging assessment for meniscal extrusion at 1 year postoperatively. Thirty patients (15 in each group) were evaluated through second-look arthroscopy at 1 year postoperatively. RESULTS There was no significant difference in the mean Lysholm score (91.3 in the IO group and 92.3 in the AI group; P = .358) or the mean Tegner activity scale (7.1 in each group; P = .885) between the 2 groups. There was no significant difference in the mean meniscal extrusion (2.6 mm in the IO group and 2.8 mm in the AI group; P = .454), relative percentage of extrusion value (25.6% in the IO group and 24.7% in the AI group; P = .721), or meniscal healing on second-look arthroscopy (P = .796) between the 2 groups. The difference in operative time between the 2 groups was found to be statistically significant (169.9 minutes in the IO group and 123.3 minutes in the AI group; P < .001). CONCLUSIONS Our comparative study on the different techniques for posterior repair of meniscus allograft suggested that AI posterior repair using FasT-Fix could be an alternative method to conventional IO repair as it gives a similar postoperative result and requires a shorter operative time.
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Affiliation(s)
- Ji Hyun Ahn
- Department of Orthopedic Surgery, Dongguk University Ilsan Hospital, Gyeonggido, Republic of Korea.
| | - Chang Hee Kim
- Department of Orthopedic Surgery, Dongguk University Ilsan Hospital, Gyeonggido, Republic of Korea
| | - Sung Hyun Lee
- Department of Orthopedic Surgery, Dongguk University Ilsan Hospital, Gyeonggido, Republic of Korea
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Masoudi A, Beamer BS, Harlow ER, Manoukian OS, Walley KC, Hertz B, Haeussler C, Olson JJ, Zurakowski D, Nazarian A, Ramappa AJ, DeAngelis JP. Biomechanical evaluation of an all-inside suture-based device for repairing longitudinal meniscal tears. Arthroscopy 2015; 31:428-34. [PMID: 25442653 DOI: 10.1016/j.arthro.2014.08.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 08/15/2014] [Accepted: 08/27/2014] [Indexed: 02/02/2023]
Abstract
PURPOSE A device for all-inside suture-based meniscal repairs has been introduced (NovoStitch; Ceterix, Menlo Park, CA) that passes the suture vertically through the meniscus, thereby encircling the tear, and does not require an additional incision or extra-capsular anchors. Our aim was to compare this all-inside suture-based repair with an inside-out suture repair and an all-inside anchor-based repair (FasT-Fix 360°; Smith & Nephew, Andover, MA). METHODS Longitudinal tears were created in 36 fresh-frozen porcine menisci. Repairs were performed using an all-inside suture-based meniscal repair device, an all-inside anchor-based repair, and an inside-out suture repair. They were tested with cyclic loading and load-to-failure testing. The displacement, response to cyclic loading (100, 300, and 500 cycles), and mode of failure were recorded. The stiffness of the constructs was calculated as well. RESULTS The all-inside suture-based repairs and the inside-out repairs showed significantly higher loads to failure than the all-inside anchor-based repairs. The stiffness values for the 3 repairs were not different. There were no differences in initial displacement. After 100, 300, and 500 cycles, the inside-out repair had higher gap formation (displacement) than the other 2 groups. Suture failure was the predominant mode of failure across all repair techniques. CONCLUSIONS The all-inside suture-based repairs and inside-out repairs did not exhibit different load-to-failure values. In addition, the all-inside suture-based repairs and the all-inside anchor-based repairs did not exhibit different displacement values during cyclic loading. CLINICAL RELEVANCE When addressing a longitudinal meniscal tear, surgeons should consider biomechanical data of various repair devices and techniques in their decision-making process to maximize the mechanical strength and healing probability of the repair.
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Affiliation(s)
- Aidin Masoudi
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Brandon S Beamer
- Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Ethan R Harlow
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Ohan S Manoukian
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Kempland C Walley
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Benjamin Hertz
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Claudia Haeussler
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Jeffrey J Olson
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - David Zurakowski
- Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, U.S.A.; Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Ara Nazarian
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Arun J Ramappa
- Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Joseph P DeAngelis
- Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A..
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22
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Beamer BS, Masoudi A, Walley KC, Harlow ER, Manoukian OS, Hertz B, Haeussler C, Olson JJ, Deangelis JP, Nazarian A, Ramappa AJ. Analysis of a new all-inside versus inside-out technique for repairing radial meniscal tears. Arthroscopy 2015; 31:293-8. [PMID: 25312766 DOI: 10.1016/j.arthro.2014.08.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 08/05/2014] [Accepted: 08/08/2014] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to compare gap formation, strength, and stiffness of repaired radial tears of the meniscus treated using a new all-inside technique versus a traditional inside-out suture technique. METHODS Radial tears were created in 36 fresh-frozen porcine menisci. Repairs were performed using a novel all-inside suture-based meniscal repair device or an inside-out technique. The repairs were tested for cyclic loading and load to failure. The displacement, response to cyclic loading (100, 300, and 500 cycles), and mode of failure were recorded, and the construct's stiffness was calculated. RESULTS The all-inside repairs using the novel device resulted in a significantly lower displacement (gap formation) after 100, 300, and 500 cycles (P = .002, P = .001, and P = .001, respectively). The ultimate load to failure was significantly greater for the all-inside repairs (111.61 N v 95.01 N; P = .03). The all-inside repairs showed greater stiffness (14.53 N/mm v 11.19 N/mm; P = .02). The all-inside repairs failed most often by suture breakage (suture failure). The inside-out repairs failed most commonly when the suture pulled through the tissue (tissue failure) (P < .001). CONCLUSIONS For repair of radial tears of the meniscus, the vertical suture configuration created by the all-inside technique resulted in lower displacement, higher load to failure, and greater stiffness compared with the horizontal inside-out technique. CLINICAL RELEVANCE In a porcine specimen meniscus repair model, the biomechanical properties of a vertical all-inside technique were superior to that of a horizontal inside-out technique. Future studies of biomechanical and clinical outcomes in human meniscal repairs with this device are warranted to explore whether this repair method is valuable to clinical practice and patient outcomes.
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Affiliation(s)
- Brandon S Beamer
- Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Aidin Masoudi
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Kempland C Walley
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Ethan R Harlow
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Ohan S Manoukian
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Ben Hertz
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Claudia Haeussler
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Jeffrey J Olson
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Joseph P Deangelis
- Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Ara Nazarian
- Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A..
| | - Arun J Ramappa
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, U.S.A
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Meta-analysis on biomechanical properties of meniscus repairs: are devices better than sutures? Knee Surg Sports Traumatol Arthrosc 2015; 23:83-9. [PMID: 24841938 DOI: 10.1007/s00167-014-2966-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 03/19/2014] [Indexed: 01/14/2023]
Abstract
PURPOSE Meniscal repair devices have been extensively tested during the past decades as reported in the literature. Reviewing the different meniscal repair devices and sutures with their respective biomechanical properties. METHODS For this meta-analysis, we conducted a systematic online search using PubMed, EMBASE, CCTR, and CINAHL using the search terms Meniscus OR Meniscal AND Biomechanics AND Repair). Load-to-failure (LtF), stiffness, and cyclic outcome measures were extracted independently and in duplicate. The systematic search revealed 841 manuscripts in total. After exclusion of duplicates and irrelevant publications, 41 studies remained for final analysis. The studies were published in English and German from 1995 to 2013. Due to differing cyclic force protocols, cyclic outcomes had to be excluded. RESULTS Overall, sutures had a higher LtF [suture: 87.7 ± 0.3 N (weighted mean ± standard error), device: 56.3 ± 0.1 N] and stiffness (suture: 8.9 ± 0.04 N/mm, device: 8.6 ± 0.04 N/mm) than devices, both p < 0.05. In LfT testing, PDS 0 Vertical (145.0 ± 8.1 N), OrthoCord 2-0 (143.6 ± 11.3 N), and Ethibond No 0 Vertical (133.4 ± 7.7 N) were the strongest sutures and Meniscal Viper (140.9 ± 5.1 N), MaxFire Vertical (136.2 ± 11.3 N), and FasT-Fix Vertical (115.2 ± 1.6 N) were the strongest devices. Second-generation devices were significantly stronger and stiffer than first-generation devices (p < 0.001). CLINICAL RELEVANCE Suture repair remains the gold standard with a vertically oriented suture configuration showing superior LtF values compared to a horizontal configuration. Nevertheless, some meniscal repair devices have similar biomechanical properties to suture repairs. Both suture repairs and devices have a place in meniscal restoration. LEVEL OF EVIDENCE None, meta-analysis of controlled laboratory studies.
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Erduran M, Hapa O, Şen B, Kocabey Y, Erdemli D, Aksel M, Havitçioğlu H. The effect of inclination angle on the strength of vertical mattress configuration for meniscus repair. Knee Surg Sports Traumatol Arthrosc 2015; 23:41-4. [PMID: 23568388 DOI: 10.1007/s00167-013-2496-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 04/03/2013] [Indexed: 11/25/2022]
Abstract
PURPOSE Vertical mattress configuration is the strongest of all other configurations and the repairing devices of meniscus repair. The purpose was whether increasing the inclination angle between two strands of the vertical mattress configuration by increasing the amount of meniscus tissue captured would enhance the initial strength of the construction. METHODS A 2-cm long anteroposterior vertical longitudinal incision was created in two groups of bovine medial menisci. In the first group, the distance between the two vertical suture strands and the vertical horizontal sutures on the capsular side of the meniscal lesion was 2 mm (Group 1). In the second group, the distance was 5 mm (Group 2). The following repair specimens underwent cyclic loading prior to loading the failure testing. The endpoints included ultimate failure load (N), stiffness (N/mm) and cyclic displacement (mm) after the 100 cycles and the mode of failure. RESULTS Group 1 (2 mm) (90.7 (±19.9) N) had lower ultimate load than Group 2 (5 mm) (120.8 (±24.5)) (P < 0.05). Stiffness and displacements during the cycling were not different between the groups (n.s.). All specimens failed by suture rupture. CONCLUSION Increased inclination angle with increased distance between the two vertical suture strands on the capsular side of the meniscal lesion resulted in higher failure load compared to control group with lower inclination angle and distance on the capsular side.
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Affiliation(s)
- Mehmet Erduran
- Department of Orthopedics and Traumatology, Dokuz Eylül University, İnciraltı, Izmir, Turkey
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Rosso C, Müller S, Buckland DM, Schwenk T, Zimmermann S, de Wild M, Valderrabano V. All-inside meniscal repair devices compared with their matched inside-out vertical mattress suture repair: introducing 10,000 and 100,000 loading cycles. Am J Sports Med 2014; 42:2226-33. [PMID: 24966304 DOI: 10.1177/0363546514538394] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND All-inside arthroscopic meniscal repairs are favored by most clinicians because of their lower complication rate and decreased morbidity compared with inside-out techniques. Until now, only 1000 cycles have been used for biomechanical testing. HYPOTHESIS All-inside meniscal repairs will show inferior biomechanical response to cyclic loading (up to 100,000 cycles) and load-to-failure testing compared with inside-out suture controls. STUDY DESIGN Controlled laboratory study. METHODS Bucket-handle tears in 72 porcine menisci were repaired using the Omnispan and Fast-Fix 360 (all-inside devices) and Orthocord 2-0 and Ultrabraid 2-0 sutures (matched controls). Initial displacement, displacement after cyclic loading (100, 500, 1000, 2000, 5000, 10,000, and 100,000 cycles) between 5 and 20 N, ultimate load to failure, and mode of failure were recorded, as well as stiffness. RESULTS Initial displacement and displacement after cyclic loading were not different between the groups. The Omnispan repair demonstrated the highest load-to-failure force (mean ± SD, 151.3 ± 21.5 N) and was significantly stronger than all the other constructs (Orthocord 2-0, 105.5 ± 20.4 N; Ultrabraid 2-0, 93.4 ± 22.5 N; Fast-Fix 360, 76.6 ± 14.2 N) (P < .0001 for all). The Orthocord vertical inside-out mattress repair was significantly stronger than the Fast-Fix 360 repair (P = .003). The Omnispan (30.8 ± 3.5 N/mm) showed significantly higher stiffness compared with the Ultrabraid 2-0 (22.9 ± 6.9 N/mm, P < .0001) and Fast-Fix 360 (23.7 ± 3.9 N/mm, P = .001). The predominant mode of failure was suture failure. CONCLUSION All-inside meniscal devices show comparable biomechanical properties compared with inside-out suture repair in cyclic loading, even after 100,000 cycles. CLINICAL RELEVANCE Eight to 10 weeks of rehabilitation might not pose a problem for all repairs in this worst-case scenario.
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Affiliation(s)
- Claudio Rosso
- Orthopaedic Department, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Sebastian Müller
- Department of Traumatology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Daniel M Buckland
- Orthopaedic Department, University Hospital Basel, University of Basel, Basel, Switzerland Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Tanja Schwenk
- Orthopaedic Department, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Simon Zimmermann
- School of Life Sciences, Institute for Medical and Analytical Technologies, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
| | - Michael de Wild
- School of Life Sciences, Institute for Medical and Analytical Technologies, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
| | - Victor Valderrabano
- Orthopaedic Department, University Hospital Basel, University of Basel, Basel, Switzerland
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Lembach M, Johnson DL. Meniscal repair techniques required for the surgeon performing anterior cruciate ligament reconstruction. Orthopedics 2014; 37:617-21. [PMID: 25198352 DOI: 10.3928/01477447-20140825-06] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Anterior cruciate ligament (ACL) tears are a common injury treated surgically by orthopedic specialists. There is a high incidence of concurrent meniscal injury that must be recognized and appropriately treated by the surgeon. The surgeon must be prepared to address the full spectrum of meniscal injuries with complex meniscal repair techniques when performing ACL reconstruction to decrease the likelihood of reoperation or postoperative symptoms for the patient.
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Abdelkafy A. Short- to mid-term results of arthroscopic meniscal repair of long vertical longitudinal tears using combined cruciate and horizontal suture techniques: a retrospective study. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2014; 25:367-74. [PMID: 24866371 DOI: 10.1007/s00590-014-1485-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 05/16/2014] [Indexed: 01/02/2023]
Abstract
INTRODUCTION The purpose was to evaluate the clinical results of arthroscopic meniscal repair of long vertical longitudinal tears using combined cruciate and horizontal suture techniques. METHODS Single surgeon retrospective case series study. A total of 38 patients having long vertical longitudinal tears were operated using combined cruciate and horizontal suture techniques. Two patients had to undergo a meniscectomy procedure within the 1st year postoperative and those were considered failure cases; 32 patients were available for follow-up evaluation (average 4.6 years) and six were lost including the two failures. Objective IKDC, modified Lysholm knee score, SF-36 score, VAS for patients' satisfaction and VAS for pain were used for follow-up evaluation. Kellgren and Lawrence (K/L) classification of osteoarthritis was also used. RESULTS Successful rate was 94.1% (32 patients), while failure was 5.9% (2 patients). Objective IKDC score revealed that 27 patients had grade "A" and 5 had grade "B," while no single patient had neither grade "C" nor "D." The average modified Lysholm score was 91.3. Average SF-36 score was 88.4. The average VAS for operation satisfaction was eight. Average VAS for pain was 1.5. Preoperatively, 30 patients were classified as normal K/L classification, while two patients were K/L classification grade "1." At the time of the follow-up, 24 patients were classified as normal K/L classification, six were grade "1," two were grade "2," and thus, six had osteoarthritis progression. CONCLUSION Arthroscopic meniscal repair of long vertical longitudinal tears using combined cruciate and horizontal suture techniques is a safe surgical procedure with good clinical outcome. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Ashraf Abdelkafy
- Orthopaedic Surgery and Trauma Department, Faculty of Medicine, Suez Canal University, Circular Road, Ismailia, 41522, Egypt,
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Ramappa AJ, Chen A, Hertz B, Wexler M, Grimaldi Bournissaint L, DeAngelis JP, Nazarian A. A biomechanical evaluation of all-inside 2-stitch meniscal repair devices with matched inside-out suture repair. Am J Sports Med 2014; 42:194-9. [PMID: 24114752 DOI: 10.1177/0363546513505190] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Many all-inside suture-based devices are currently available, including the Meniscal Cinch, FasT-Fix, Ultra FasT-Fix, RapidLoc, MaxFire, and CrossFix System. These different devices have been compared in various configurations, but to our knowledge, the Sequent meniscal repair device, which applies running sutures, has not been compared with the Ultra FasT-Fix, nor has it been compared with its suture, No. 0 Hi-Fi, using an inside-out repair technique. PURPOSE To assess the quality of the meniscal repair, all new devices should be compared with the gold standard: the inside-out repair. To that end, this study aims to compare the biomechanical characteristics of running sutures delivered by the Sequent meniscal repair device with 2 vertical mattress sutures applied using the Ultra FasT-Fix device and with 2 vertical mattress sutures using an inside-out repair technique with No. 0 Hi-Fi suture. STUDY DESIGN Controlled laboratory study. METHODS Paired (medial and lateral), fresh-frozen porcine menisci were randomly assigned to 1 of 3 groups: Sequent (n = 17), Ultra FasT-Fix (n = 19), and No. 0 Hi-Fi inside-out repair (n = 20). Bucket-handle tears were created in all menisci and were subjected to repair according to their grouping. Once repaired, the specimens were subjected to cyclic loading (100, 300, and 500 cycles), followed by loading to failure. RESULTS The Sequent and Ultra FasT-Fix device repairs and the suture repair exhibited low initial displacements. The Sequent meniscal repair device demonstrated the lowest displacement in response to cyclic loading. No. 0 Hi-Fi suture yielded the highest load to failure. CONCLUSION With the development of the next generation of all-inside meniscal repair devices, surgeons may use these findings to select the method best suited for their patients. CLINICAL RELEVANCE The Sequent meniscal repair device displays the least amount of displacement during cyclic loading but has a similar failure load to other devices.
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Affiliation(s)
- Arun J Ramappa
- Ara Nazarian, Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, RN115, Boston, MA 02215.
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Hapa O, Akşahin E, Erduran M, Davul S, Havitçioğlu H, LaPrade RF, Bozdağ E, Sünbüloğlu E. The influence of suture material on the strength of horizontal mattress suture configuration for meniscus repair. Knee 2013; 20:577-80. [PMID: 23340094 DOI: 10.1016/j.knee.2012.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 11/26/2012] [Accepted: 11/28/2012] [Indexed: 02/02/2023]
Abstract
PURPOSE Comparison of the mechanical characteristics of meniscal repair fixation using horizontal sutures and six different sutures under submaximal cyclic and load to failure test conditions may aid physicians in selecting a suture type. METHODS A 2-cm long anteroposterior vertical longitudinal incision was created in six groups of bovine medial menisci. Lesions were repaired using a No. 2 suture either composed of polyester or polyester and ultra high-molecular weight polyethylene (UHMWPE), or UHMWPE and polydioxanone or pure UHMWPE. Endpoints included ultimate failure load (N), pull-out stiffness (N/mm), pull-out displacement (mm), cyclic displacement (mm) after 100cycles, after 500cycles, and mode of failure. RESULTS Polyester suture had lower ultimate load than all groups except the suture composed of polyester and UHMWPE (P<.05). Pure UHMWPE suture had higher ultimate failure load than sutures composed of either polyester or polyester plus UHMWPE (P<.05). Predominant failure mode was suture cutting through the meniscus for the groups except for polyester suture which failed by suture rupture. CONCLUSION Under cyclic loading conditions in bovine meniscus, braided polyester suture fixation provided lower initial fixation strength than fixation with various high strength sutures composed of pure UHMWPE or a combination of absorbable monofilament polydioxanone and UHMWPE, except for combination of polyester and UHMWPE sutures. CLINICAL RELEVANCE Present study does not support the usage of the braided polyester sutures instead of high strength sutures composed either partially or totally of ultra-high molecular weight polyethylene for the horizontal suture configuration of meniscus repair.
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Affiliation(s)
- Onur Hapa
- Department of Orthopedics and Traumatology, Dokuz Eylül University, İzmir, Turkey.
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Pujol N, Tardy N, Boisrenoult P, Beaufils P. Magnetic resonance imaging is not suitable for interpretation of meniscal status ten years after arthroscopic repair. INTERNATIONAL ORTHOPAEDICS 2013; 37:2371-6. [PMID: 23948982 DOI: 10.1007/s00264-013-2039-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 07/16/2013] [Indexed: 11/28/2022]
Abstract
PURPOSE The purpose of this study was to assess the MRI features of the all-inside repaired meniscus in the long-term. METHODS Among 27 consecutive all-inside arthroscopic meniscal repairs, 23 patients aged 25 ± 5 years at the time of surgery were reviewed at a median follow-up of 10 ± 1 years. Retrospective clinical examinations and imaging assessments using a 1.5-T MRI after all-inside arthroscopic meniscal repair were conducted. RESULTS At follow-up, Lysholm and IKDC averaged 89 ± 11 and 95 ± 8, respectively. MRI examinations revealed no meniscal signal alteration in three patients (13%), a vertical signal located in the previously torn area in seven (30%), a horizontal grade 3 in nine (39%), and a complex tear (grade 4) in four (17.5%). There were no differences between medial and lateral menisci (p = 0.15), stable and stabilised knees (p = 0.56). CONCLUSIONS Several abnormal vertical and/or horizontal hypersignals are still present on MRI examination ten years after arthroscopic all-inside meniscal repair. The appearance of early signs of osteoarthritis is rare, suggesting a chondroprotective effect of the repaired meniscus.
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Affiliation(s)
- Nicolas Pujol
- Orthopaedic Department, Centre Hospitalier de Versailles, Le Chesnay, France,
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31
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Deponti D, Di Giancamillo A, Scotti C, Peretti GM, Martin I. Animal models for meniscus repair and regeneration. J Tissue Eng Regen Med 2013; 9:512-27. [PMID: 23712959 DOI: 10.1002/term.1760] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 02/24/2013] [Accepted: 04/02/2013] [Indexed: 12/21/2022]
Abstract
The meniscus plays an important role in knee function and mechanics. Meniscal lesions, however, are common phenomena and this tissue is not able to achieve spontaneous successful repair, particularly in the inner avascular zone. Several animal models have been studied and proposed for testing different reparative approaches, as well as for studying regenerative methods aiming to restore the original shape and function of this structure. This review summarizes the gross anatomy, function, ultrastructure and biochemical composition of the knee meniscus in several animal models in comparison with the human meniscus. The relevance of the models is discussed from the point of view of basic research as well as of clinical translation for meniscal repair, substitution and regeneration. Finally, the advantages and disadvantages of each model for various research directions are critically discussed.
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