ABSTRACT
Popliteal meniscal fiber bundle injury is relatively infrequent in clinic, which can be either isolated or associated with anterior cruciate ligament rupture, lateral meniscus injury and so on. Popliteal meniscal fiber bundle injury often leads to instability of lateral meniscus. Because of the lack of specific symptoms and signs of injury, the imaging changes are subtle, and it is easy to miss diagnosis and misdiagnosis in clinical. Timely diagnosis and treatment are essential to prevent the chronic pain and instability of the knee joint. This paper summarizes the anatomical characteristics, biomechanics, injury mechanism, diagnostic points and surgical treatment of the popliteal meniscus fiber bundle injury, in order to guide the diagnosis and treatment of the injury of the popliteal meniscus fiber bundle in the clinical work.