Hurlbut P T, Adams B D
University of Vermont, Department of Orthopaedics and Rehabilitation, Burlington, USA.
J Hand Surg Am. 1995 Sep;20(5):832-40. doi: 10.1016/S0363-5023(05)80439-3.
Strains in the extensor mechanism of the finger were measured in a cadaver model using Hall-effect transducers. Several components of the mechanism were evaluated at different joint positions, with different intrinsic and extrinsic tendon loading conditions, and after creating a boutonnière deformity. Landsmeer's theory that predictable and obligatory interactions occur within the extensor mechanism during finger movement is strongly supported by our results. The concept of the Bunnell intrinsic-tightness test was confirmed. Results were consistent with clinical observations and current theories on the pathomechanics of claw and boutonnière deformities. Based on our experimental findings, we conclude that strain analysis is an effective method of evaluation of the extensor mechanism with potential for in vivo surgical applications.
使用霍尔效应传感器在尸体模型中测量手指伸肌机制中的应变。在不同的关节位置、不同的内在和外在肌腱负荷条件下以及在造成纽扣畸形后，对该机制的几个组成部分进行了评估。我们的结果有力地支持了兰德施密尔的理论，即在手指运动过程中，伸肌机制内会发生可预测和必然的相互作用。布内尔内在紧张度测试的概念得到了证实。结果与临床观察以及关于爪形和纽扣畸形病理力学的当前理论一致。基于我们的实验结果，我们得出结论，应变分析是评估伸肌机制的一种有效方法，具有体内手术应用的潜力。
