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Anatomic Repair of Posteromedial Meniscocapsular Separation Using an All-Inside Technique.

ABSTRACT: Separation of the posteromedial meniscocapsular junction (PMC) is a unique injury seen in patients with disruption of the anterior cruciate ligament. PMC tears may go unrecognized despite preoperative magnetic resonance imaging and diagnostic arthroscopy of the medial compartment. Unrepaired lesions may lead to persistent laxity of the knee after anterior cruciate ligament reconstruction. Inside-out repair techniques risk iatrogenic injury to the articular cartilage during needle passage and require dissection of the posteromedial knee for suture retrieval. Previous all-inside techniques have required specialized implants and repaired PMC lesions with direct visualization of the tear. The presented all-inside technique is an easily reproducible, cost-effective means to anatomically repair separation of the PMC. The technique provides the surgeon direct visualization and full arthroscopic access to the lesion, making repair technically easy and efficient.

SUBMITTER: Kumar NS

PROVIDER: S-EPMC5800956 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundIn irreducible bucket-handle medial meniscal tears (BHMMTs), the displaced central fragment is rotated 180° or more, meaning reduction is impossible without derotation of the tear. In chronic cases, the rotated meniscus is deformed and degenerated; thus, the issue of reproducibility and repairability arises. This study presents the clinical outcomes of chronic irreducible and unstable locked BHMMTs. Radiological outcomes were also evaluated using magnetic resonance imaging (MRI).MethodsThis is a retrospective study of 37 patients with 11 cases of irreducible BHMMT and 26 cases of reducible but unstable chronic BHMMT who underwent operations between 2011 and 2016. Posterior arthroscopy was performed after temporary meniscus fixation using a provisional needle fixation technique. After the posterior repair with vertical mattress sutures was completed using an all-inside technique, the classic outside-in technique was performed for the anterior third of the meniscus. The Lysholm, International Knee Documentation Committee (IKDC), and Tegner activity scores were obtained from all patients before surgery and at the latest follow-up. Radiological evaluations were performed using MRI before surgery and at 6 months postoperatively.ResultsBetween 2011 and 2016, a total of 37 consecutive patients with irreducible and chronic BHMMTs underwent surgery. The average postoperative follow-up was 7.2 ± 1.4 years (mean ± SD). Postoperative Lysholm (89.57 ± 2.7) and IKDC (87.22 ± 3.2) scores improved significantly at the last follow-up when compared with the pre-operative scores (38.44 ± 4.5 and 23.52 ± 7.8, respectively). According to the Tegner activity scale, patients' postoperative activity levels remained unchanged compared to preoperative levels at the last follow-up.ConclusionPosterior knee arthroscopy with the all-inside posterior suture and inside-out anteromedial suture technique presented in this study yielded excellent clinical outcomes when used to repair chronic irreducible or unstable BHMMTs.Level of evidenceLevel IV.

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Anatomic Repair of Posteromedial Meniscocapsular Separation Using an All-Inside Technique.

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