背景和目的：轉子下外翻切骨術在治療股骨近端骨折不癒合時改變了骨折處的載力。本文就是研究以轉子下外翻切骨術來治療股骨近端骨折不癒合的結果。方法：收集12 位股骨近端骨折不癒合的病人，以轉子下外翻切骨術來使原先骨折處的剪力變為壓縮力以促進骨折癒合，同時矯正長短腳。切骨後以動力性髖鋼板鋼釘來固定，同時植骨於切骨處。從初次骨折到接受切骨術平均時間為13.5 個月，而切骨術後平均追蹤時間為40 個月。結果：所有的病人在術後均得到骨折癒合，平均癒合時間為5.2 個月。下肢平均延長了1.72 公分(範圍；0.7 至4 公分)，股骨頸-股骨幹角度平均矯正了28 度(範圍；15 至40 度)，沒有因切骨術而產生合併症。結論：轉子下外翻切骨術用來治療股骨近端骨折不癒合是有效的方法，尤其當病人有輕微的長短腳時。大部分的病人可得到骨折癒合、長短腳矯正、以及功能上的恢復。

A subtrochanteric valgus osteotomy for treating a nonunionof a proximal femoral fracture alters the loading forces at the fracture site. This study investigatedthe results of nonunion of proximal femoral fractures treated with a subtrochanteric valgusosteotomy. 0 HWKRGV Twelve patientswith nonunion of a proximal femoral fracturewere treatedwith a subtrochanteric valgus osteotomy to promote bone healing by changing the shearing forceinto a compressive force at the fracture site and correcting the leg length discrepancy. Theosteotomy was fixed with a dynamic hip screw, and a bone graft was performed at the osteotomysite. The average time from the fracture to the osteotomywas 13.5 months, and the average followupwas 40 months. 5HVXOWV Bony union was achieved in all patients at an average of 5.2 monthspostoperatively. The average lengthening of the leg was 1.72 (range, 0.7~4) cm. The averagecorrection of the neck-shaft angle was 28° (range, 15°~40°). There were no complications relatedto the osteotomy. &RQFOXVLRQV A subtrochanteric valgus osteotomy is effective in treating anonunion of proximal femoral fractures, especially in patients with mild leg length discrepancies.Most patients can achieve bony healing of the fracture, correction of the leg length discrepancy,and a functional recovery.