Fabellae were mainly present in the lateral head of the gastrocnemius muscle in a large proportion of the Chinese population. More than half of the cartilage fabellae were not visualized on radiograph. Its clinical significance could not be ignored by physicians and anatomists.
This study explored the anatomic relationship of the popliteus complex (PC) and collected anatomic data of PC in a Chinese population. The anatomic study was performed using 81 formalin-fixed knees. The femoral attachment of the popliteus tendon could be classified into three types with respect to femoral attachment of the lateral collateral ligament. The popliteofibular ligament presented as ligament (87.7%) or fascia (12.3%), originating from the musculotendinous junction of the popliteus muscle or just proximal to it. Given the great variability of the posterolateral structures, reconstructive surgeons should design a method based on individual anatomic features, rather than a fixed reconstructive surgery.
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