股骨头骨骺缺血性坏死159例临床X线分析

本文分析159例股骨头骨骺缺血坏死，男136例，女23例，主要症状为跛行和髋关节疼痛，早期X线表现为骨骺变小，边缘不规则，密度增高，继而骨骺外上缘扁平，碎裂，骺板模糊不规整，髋关节间隙内侧增宽，股骨颈增粗以及干骺端囊变，后者的形成原因是因局部坏死及因压力而致的细微骨折和出血，结合29例2月至12年随访观察，讨论了其生物力学的变化，认为股骨头扭矩力增大是髋脱位的主要原因，骨骺塌陷变扁，断裂和畸形是由于超负荷的机械力压迫，骨骺内侧1／4是其受力的焦点。

The Radiologic Analysis for Ischemic Necrosis of Epiphysis Femoral Head(Report of 159 Cases)

159 patients,136 men and 23 women,with ischemic necrosis of femoral head wereanalysed.The clinical features were limp and hip pain.The early x-ray signs are:(1)a smaller ossificnucleus of epiphysis with rough fringe and increased density;(2)irregular,narrow and obscureepiphyseal line;(3)increased density or cyst in metaphyses which may caused by local necrosis offemoral neck,slight fracture by mechanical pressure and bleeding;(4)increased width of the medialjoint space of hip.The abductive torsion of femoral head is the main cause of hip semiluxation.Theflatten and fragment of epiphysis is leaded by overloaded mechanical force in the medial 1/4 region ofcapital epiphysis.