Bose K, Chong K C
J Bone Joint Surg Br. 1976 Nov;58-B(4):478-84. doi: 10.1302/0301-620X.58B4.1018035.
Experience with thirty-eight Asian children and adolescents who presented with either stiffness of the knee, genu recurvatum, habitual dislocation of the patella or congenital lateral dislocation of the patella showed that all those disorders were manifestations of contracture of the extensor mechanism, which fell into two groups according to the components involved. In Group I the main components affected were in the midline of the limb, namely rectus femoris and vastus intermedius; these patients presented with varying degrees of stiffness of the knee, or worse, with genu recurvatum. In Group II the main components involved were lateral to the midline of the limb, namely vastus lateralis and the ilio-tibial band; these patients presented with habitual dislocation of the patella, or worse, congenital lateral dislocation of the patella. In both groups untreated patients developed secondary adaptive changes such as subluxation of the tibia or marked genu valgum which made operative procedures more formidable and less effective. Release of the contracture should therefore be performed as early as possible.
对38名出现膝关节僵硬、膝反屈、习惯性髌骨脱位或先天性髌骨外侧脱位的亚洲儿童及青少年的研究显示，所有这些病症均为伸肌机制挛缩的表现，根据受累组成部分可分为两组。在第一组中，主要受累组成部分位于肢体中线，即股直肌和股中间肌；这些患者表现出不同程度的膝关节僵硬，甚至更严重的膝反屈。在第二组中，主要受累组成部分位于肢体中线外侧，即股外侧肌和髂胫束；这些患者表现出习惯性髌骨脱位，甚至更严重的先天性髌骨外侧脱位。在两组中，未经治疗的患者会出现继发性适应性改变，如胫骨半脱位或明显的膝外翻，这使得手术操作更加困难且效果不佳。因此，挛缩松解应尽早进行。
