复发性髌骨脱位是引起青少年膝关节功能障碍的常见疾病，其定义为髌骨脱位发生两次及两次以上，是一种骨科及运动医学临床常见的疾病。复发性髌骨脱位的病因有很多，但归根结底，髌骨在活动中所处的异常力学环境是引起不稳的根本原因。研究发现内侧髌股韧带被认为是限制髌骨向外脱位最重要的软组织结构，因而重建内侧髌股韧带对成功治疗复发性髌骨脱位起着重要的作用。但复发性髌骨脱位往往是一个多因素引起的临床问题，除了纠正软组织的异常外，骨性结构的异常也是一个不容忽视的问题。本文对近年来对内侧髌股韧带的解剖、生物力学、手术技巧、治疗结果及术后并发症的研究情况进行了综述。

Recurrent patellar dislocation is a common disease causing knee dysfunction in adolescents, it is defined as two or more times of patellar dislocation, which is a common disease in orthopedics and sports medicine. There are many causes of recurrent patellar dislocation, but the abnormal mechanical environment of patella in motion is the root cause of instability.It is found that the medial patellofemoral ligament is considered as the most important soft tissue structure to limit the external dislocation of the patella, so the reconstruction of the medial patellofemoral ligament plays an important role in the successful treatment of recurrent patellar dislocation. However, recurrent patella dislocation is often a multi-factor clinical problem. In addition to correcting soft tissue abnormalities, abnormal bone structure is also a problem that cannot be ignored. This article reviews the recent studies on the anatomy, biomechanics, surgical techniques, treatment results and postoperative complications of the medial patellofemoral ligament.