Biyani A, Jones D A, Daniel C L, Bishay M
Department of Orthopaedics, Morriston Hospital, Swansea, UK.
Injury. 1993 Feb;24(2):97-100. doi: 10.1016/0020-1383(93)90197-e.
The relationship between peritrochanteric heterotopic ossification and the strength of hip abduction after closed intramedullary nailing for femoral shaft fractures was investigated in 25 patients after a mean follow-up of 2 years (range 9 months to 4 years). The power of hip abduction was assessed and compared with the normal hip. Of the 21 patients with heterotopic ossification, 16 had measurable weakness of hip abduction. Grade III heterotopic ossification resulted in 8-20 per cent weakness of hip abduction, but this was not associated with any disability or symptoms. Clinically important abductor weakness is more likely to be due to ipsilateral fractures or a long nail rather than heterotopic ossification.
对25例股骨干骨折行闭合髓内钉固定术后平均随访2年（9个月至4年）的患者，研究了转子周围异位骨化与髋关节外展肌力之间的关系。评估髋关节外展力量并与健侧髋关节进行比较。在21例发生异位骨化的患者中，16例存在可测量的髋关节外展肌无力。Ⅲ级异位骨化导致髋关节外展肌力减弱8%至20%，但这与任何残疾或症状均无关联。临床上重要的外展肌无力更可能是由于同侧骨折或髓内钉过长，而非异位骨化。
