Lui Tun Hing
Department of Orthopaedics and Traumatology, North District Hospital, Hong Kong, China.
Arthrosc Tech. 2016 Nov 7;5(6):e1287-e1290. doi: 10.1016/j.eats.2016.07.020. eCollection 2016 Dec.
Anterior ankle snapping syndrome is rare. Snapping of the extensor digitorum longus due to attenuated inferior extensor retinaculum and snapping due to hypertrophied or low-lying peroneal tertius muscle have been reported. We reported a new mechanism of anterolateral snapping due to a hypertrophied talar head. Anterolateral snapping ankle can be revealed by active dorsiflexion and plantarflexion of the ankle with the foot inverted. Foot inversion will tension the inferior extensor retinaculum and uncover the dorsolateral prominence of the talar head. The dorsolateral prominence of the talar head will snap over the proximal edge of the inferior extensor retinaculum. This technical note reports the technique of arthroscopic contouring of the talar head via extra-articular ankle arthroscopy. We named this technique arthroscopic taloplasty.
前踝弹响综合征较为罕见。有报道称，由于下伸肌支持带变薄导致趾长伸肌弹响，以及由于腓骨第三肌肥大或位置较低导致弹响。我们报告了一种因距骨头肥大引起前外侧弹响的新机制。通过足内翻时踝关节的主动背屈和跖屈可发现前外侧弹响的踝关节。足内翻会拉紧下伸肌支持带，使距骨头的背外侧突出显露出来。距骨头的背外侧突出会在伸肌支持带近端边缘上弹响。本技术说明报告了通过关节外踝关节镜对距骨头进行关节镜轮廓修整的技术。我们将此技术命名为关节镜距骨成形术。
