Curve the incision just proximal to the medial malleolus (Fig. 1-33, A) and divide the malleolus with an osteotome or small power saw;preserve the attachment of the deltoid ligament.

• 于内踝稍近侧做弧形切口(图1-33A)，用骨凿或小的动力锯截断内踝，保留三角韧带的附着点。