Blair W F, Pontarelli W R
Clin Orthop Relat Res. 1982 Sep(169):145-7.
When severe adjacent soft tissue injury precludes early operative repair of the patellar tendon, proximal migration of the patella and secondary quadriceps contracture may occur. Ambulatory dynamic patellar traction employs a cast brace assembly that prevents or corrects early proximal migration of the patella. The cast brace assembly incorporates a transverse threaded Steinmann pin through the patella, wire loops on the leg section of a cast brace, rubber band traction between the Steinmann pin and the wire loops, and drop lock knee hinges. The use of drop lock hinges allows passive knee motion when the lock is released and ambulation with a stable knee when the hinge is locked. Application of the dynamic ambulatory traction method is employed in the case of a 21-year-old man who sustained a severe electrical burn to the knee with loss of anterior soft tissue, including the patellar tendon. The prescribed traction method corrected early proximal migration of the patella prior to infrapatellar tendon reconstruction.
当严重的相邻软组织损伤妨碍早期对髌腱进行手术修复时，可能会发生髌骨近端移位和继发性股四头肌挛缩。门诊动态髌骨牵引采用一种石膏支具组件，可防止或纠正髌骨早期近端移位。该石膏支具组件包括一根穿过髌骨的横向螺纹斯氏针、石膏支具腿部的钢丝环、斯氏针与钢丝环之间的橡皮筋牵引以及落锁式膝关节铰链。使用落锁式铰链可在解锁时实现膝关节被动活动，在铰链锁定时实现膝关节稳定的行走。一名21岁男性因膝关节严重电烧伤导致包括髌腱在内的前部软组织缺失，采用了动态门诊牵引方法。规定的牵引方法在髌腱重建之前纠正了髌骨早期近端移位。
