Repair of a torn medial meniscus with an anteromedial meniscofemoral ligament in an anterior cruciate ligament-injured knee.

Abstract

We report a rare case of longitudinal tear of the anterior segment of the medial meniscus in association with the anteromedial meniscofemoral ligament (AMMFL) in an anterior cruciate ligament-injured knee. The tear was repaired, and the anterior horn was transferred to the tibia using the pull-out technique after excising the AMMFL. Repeat arthroscopy performed 7 months postoperatively revealed that the medial meniscus had completely healed and the anterior horn was firmly fixed to the tibia. Two years after the surgery, the patient could play basketball without any symptom. A posteroanterior flexion weight-bearing radiograph did not show any narrowing of the medial joint space. Considering the excellent healing observed in this case, preservation of the meniscus should be considered despite an association between a torn meniscus and an anomalous insertion.