Taşer Figen, Shafiq Qaiser, Toker Serdar
Department of Anatomy, Medicine Faculty of Dumlupinar University, Kütahya, Turkey.
Eklem Hastalik Cerrahisi. 2009;20(3):165-8.
The longitudinal tear in the m. peroneus brevis tendon is frequently observed as a less common cause of chronic ankle pain and disability. In this case the rare association of a longitudinal tear in the m. peroneus brevis tendon and an anomalous m. peroneus tertius origin of muscle bulk and insertion were detected during a routine dissection of the lower left extremity. The m. peroneus tertius was originating separately from the fibula rather than as a slip from extensor digitorum longus. The muscle bulk was also bulkier than normal. The fanned-out m. peroneus tertius tendon adhered almost on the entire dorsal surface of the fifth metatarsal bone. According to our case report one of the possible causes of the longitudinal tear in the m. peroneus brevis tendon can be an anomalous m. peroneus tertius with its different origin and insertion points and muscle bulk, via changing the ankle motion mechanism. This anomaly should be considered in the patients presenting with ankle pain in the clinic.
腓骨短肌肌腱的纵向撕裂常被视为慢性踝关节疼痛和功能障碍的较少见原因。在本病例中，在对左下肢进行常规解剖时，发现了腓骨短肌肌腱纵向撕裂与腓骨第三肌异常的肌肉起点、止点罕见关联。腓骨第三肌单独起自腓骨，而非趾长伸肌的分支。其肌腹也比正常的更粗大。扇形的腓骨第三肌肌腱几乎附着于第五跖骨的整个背侧表面。根据我们的病例报告，腓骨短肌肌腱纵向撕裂的可能原因之一可能是腓骨第三肌异常，其起点、止点及肌腹不同，从而改变了踝关节的运动机制。临床中出现踝关节疼痛的患者应考虑这种异常情况。
