前半月板股骨韧带-外侧半月板后角连接部撕裂的修复：四例不同病例报告
简介
外侧半月板后角撕裂常伴随旋转扭伤和前交叉韧带损伤，但存在多种未被充分描述的亚型。本研究报道4例前半月板股骨韧带与外侧半月板后角交界处撕裂，分为两种模式：孤立性撕裂，以及合并外侧半月板斜行放射状撕裂的复合撕裂。此类损伤表现类似根部撕裂，MRI常漏诊，若未识别或处理，可能影响前外侧旋转稳定性。术中诊断依据为：尽管根部外观完整，但探钩检查发现后角过度活动。采用不同…
英文摘要
Lateral meniscus posterior horn tears are frequently associated with pivoting trauma and anterior cruciate ligament injuries, but they encompass heterogeneous and incompletely characterized patterns. We present four cases of tears at the junction of the anterior meniscofemoral ligament and the posterior horn of the lateral meniscus. Two patterns were identified: an isolated tear and a combined tear associated with an oblique radial tear of the lateral meniscus (LMORT). These lesions mimic root tears and are often not detected by magnetic resonance imaging and may compromise anterolateral rotational stability if unrecognized or neglected. Intraoperative diagnosis is established by probing-induced hypermobility of the posterior horn despite an intact-appearing root. Repairs are conducted using different types of all-inside approaches, restoring continuity at the meniscofemoral ligament-root junction. Postoperative rehabilitation follows standard meniscal root repair protocols. In a consecutive series of four young, active patients with minimum 12-month follow-up, this technique yielded stable menisci, resolution of pain and no reoperations or recurrent effusions. LEVEL OF EVIDENCE: V.