Oh Chang Wug, Satish B R J, Lee Sung-Tae, Song Hae-Ryong
Department of Orthopaedic Surgery, Kyungpook National University Hospital, Daegu, Korea.
J Pediatr Orthop. 2004 Nov-Dec;24(6):711-5. doi: 10.1097/00004694-200411000-00021.
The authors analyzed the results and complications of metatarsal lengthening in short first metatarsals by distraction osteogenesis. There were 13 first metatarsal lengthenings in eight patients. Mean age was 18.8 years and the average percentage of lengthening was 49.2%. The average healing index was 72.4 days/cm. The major complication was cavus foot, which was noticed in four feet. All great toes showed some loss of motion at metatarsophalangeal (MP) joint. Other complications were hallux valgus, angulation of the metatarsals, and pin tract infection each in two feet. The functional score according to the American Orthopedic Foot and Ankle Society (AOFAS) hallux MP joint, interphalangeal joint scale was excellent in 11 and good in 2. All patients were satisfied with the procedure. To avoid potential complications such as MP joint subluxation, cavus foot, and hallux valgus, the first metatarsal lengthening should not exceed 50% of the original length.
作者分析了通过牵张成骨术延长短小第一跖骨的结果及并发症。8例患者共进行了13次第一跖骨延长术。平均年龄为18.8岁，平均延长百分比为49.2%。平均愈合指数为72.4天/厘米。主要并发症是高弓足，4只脚出现该情况。所有拇趾在跖趾（MP）关节均有一定程度的活动度丧失。其他并发症包括拇外翻、跖骨成角以及针道感染，各有2只脚出现。根据美国矫形足踝协会（AOFAS）拇趾MP关节、趾间关节评分标准，功能评分11例为优，2例为良。所有患者对手术均满意。为避免诸如MP关节半脱位、高弓足和拇外翻等潜在并发症，第一跖骨延长长度不应超过原始长度的50%。
