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Meniscal Root Repair With Mini-Open Medial Collateral Ligament Release

ABSTRACT: Meniscal root repair is becoming more common with increasing knowledge regarding the function of the meniscal root and its role in long-term joint preservation, as well as improved surgical techniques and instrumentation. Despite this, adequate visualization of the posterior horn of the medial meniscus may be challenging, particularly in those with tight medial compartments. Instrument handling and attempt to visualize and repair the meniscal tear may lead to iatrogenic chondral injuries in these instances. We describe our preferred technique for improved visualization via mini-open release of the distal medial collateral ligament that allows for increased joint distension, increased access to the posterior horn of the medial meniscus, and the ability to repair the released medial collateral ligament. Technique Video Video 1 This video demonstrates our mini-open MCL release technique to increase access to the posterior horn of the medial meniscus for arthroscopic root repair. After an incision medial to the tibial tubercle and dissection through the sartorial fascia, the distal MCL is able to be visualized and released. The meniscal root is repaired through a transtibial pullout repair. An all-suture anchor is then used to reduce the MCL to its native footprint. (MCL, medial collateral ligament.)

SUBMITTER: DeFroda S

PROVIDER: S-EPMC8626814 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:PurposeTo quantify intraoperative joint space widening afforded by the outside-in, percutaneous release of the medial collateral ligament (MCL) and to evaluate its impact on medial compartment width and functional outcomes at 6-week follow-up for patients undergoing a partial medial meniscectomy without postoperative bracing.MethodsPatients with posteromedial meniscus tears and no evidence of ipsilateral knee pathology, undergoing partial medial meniscectomy, were enrolled. Intraoperatively, medial compartment width was quantified with fluoroscopy before and after the percutaneous MCL release with an 18-gauge spinal needle proximal to the joint line. At 6-week follow-up, valgus stress radiographs re-evaluated medial compartment width. International Knee Documentation Committee (IKDC) and Patient-Reported Outcomes Measurement Information System (PROMIS) scores were completed preoperatively and at 6-week follow-up to evaluate functional outcomes. A paired sample t test performed at a 95% confidence interval (CI) was used to compare these variables.ResultsForty-two patients, mean (± standard deviation) age 55.3 ± 10.7 years, were available for analysis of intraoperative medial compartment widening. Medial compartment width increased from 5.95 ± 1.32 to 11.09 ± 1.74 mm intraoperatively after MCL release. At 6-week follow-up, radiographic assessment demonstrated a mean medial compartment width of 5.85 ± .99 mm, which represented an insignificant change compared with the preoperative value (CI -0.68 to .33, P = .474). PROMIS and IKDC scores significantly improved from baseline, with increases of 6.9 ± 12.4 (CI 2.0 to 11.8, P = .008) and 11.7 ± 17.8 (CI 4.7 to 18.8, P = .002), respectively.ConclusionsPercutaneous MCL release during knee arthroscopy improves visualization and facilitates instrumentation by providing an almost 2× wider working space within the medial tibiofemoral joint. In this study, the performance of percutaneous MCL release did not result in any complications. Radiographic and clinical resolution of iatrogenic laxity was demonstrated by 6-weeks postoperatively, without the use of postoperative bracing.Level of evidenceIV, therapeutic case series.

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Meniscal Root Repair With Mini-Open Medial Collateral Ligament Release

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