Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland.
JBJS Case Connect. 2021 Nov 11;11(4):01709767-202112000-00045. doi: e21.00264.
We describe a case of dysplasia epiphysealis hemimelica (DEH) of the anterior tibiotalar joint that presented as toe walking in a 6-year-old boy. Radiographs and magnetic resonance images showed substantial exostosis at the anterior ankle that blocked dorsiflexion. He underwent surgical excision and casting for equinus, restoring ankle range of motion and gait.
Although DEH is benign, it can cause major deficits and permanent damage to a joint when neglected. Recognition of subtle presentations of DEH, such as toe walking, is crucial. Early treatment can restore joint motion and prevent deformity and arthritis.
我们描述了一例前胫距关节的半肢发育异常（DEH）病例，该病例以 6 岁男孩的足尖步态为表现。X 线片和磁共振成像显示在前踝关节有大量外生骨赘，阻碍了背屈。他接受了手术切除和跟腱跖屈固定，恢复了踝关节活动度和步态。
虽然 DEH 是良性的，但如果忽视，它会对关节造成严重的功能障碍和永久性损伤。认识到 DEH 的细微表现，如足尖步态，至关重要。早期治疗可以恢复关节运动，防止畸形和关节炎。
