Tang R G, Dai K R, Chen Y Q
Department of Orthopaedic Surgery, Ninth People's Hospital, Shanghai Second Medical University, P.R. China.
Biomed Mater Eng. 1996;6(4):307-12.
Thirty-six metatarsal osteotomies using internal fixation of a shape memory metal compression staple for hallux valgus were performed in 21 women with a mean age of 42.3 years (30-66 years). The time for return to light work averaged 19.0 days, and to full work and normal walk 41.2 days after the operation. Twenty patients (35 feet) had complete relief from pain. Only in one foot, the pain was transferred under the second metatarsal head. The appearance of the feet was apparently improved and the width of the forefeet was decreased by a mean of 0.90 cm after the operation. Radiographic analysis of feet showed that all osteotomies united, and the average angle of hallux valgus was improved from 31.2 degrees to 16.3 degrees and the mean intermetatarsal angle from 12.0 degrees to 6.4 degrees. No external fixation of plaster splintage was needed and the distal fragment during healing of the osteotomy was stable. The time of bone healing was shortened and patients were allowed to bear weight at an early time.
对21名平均年龄42.3岁（30 - 66岁）的女性进行了36例使用形状记忆金属加压钉内固定治疗拇外翻的跖骨截骨术。术后恢复轻体力工作的时间平均为19.0天，恢复全职工作和正常行走的时间平均为41.2天。20例患者（35只脚）疼痛完全缓解。仅1只脚的疼痛转移至第二跖骨头下方。术后足部外观明显改善，前足宽度平均减少0.90 cm。足部X线分析显示所有截骨均愈合，拇外翻平均角度从31.2度改善至16.3度，跖间平均角度从12.0度改善至6.4度。无需石膏夹板外固定，截骨愈合过程中远端骨折块稳定。骨愈合时间缩短，患者可早期负重。
