Greenberg Jeffrey A, Yanagida Hiromi, Werner Frederick W, Short Walter H
Indiana Hand Center, Indianapolis, IN 46260, USA.
J Hand Surg Am. 2003 Jan;28(1):105-10. doi: 10.1053/jhsu.2003.50006.
To study changes in the relationship of the distal radius and ulna after progressive resection of the distal ulna.
Six-degree-of-freedom motion sensors were used to determine relative motion and a displacement transducer was used to determine strain changes in the interosseous membrane (IOM). These were applied in cadaveric specimens loaded to simulate wrist motion and axial compressive forces.
Strain in the IOM decreased with increasing resection of the distal ulna. The distance between the radius and ulna decreased with increasing resection up to 20% of ulna length.
The decreased strain in the IOM and stabilization of the distance between the radius and ulna at 20% resection level provides biomechanical support for the satisfactory clinical results seen after wide ulnar resection. Wide excision of the distal ulna may be a viable salvage alternative to creation of a one-bone forearm.
研究尺骨远端逐步切除后桡骨远端与尺骨关系的变化。
使用六自由度运动传感器确定相对运动，并使用位移传感器确定骨间膜（IOM）的应变变化。将这些应用于加载以模拟腕部运动和轴向压缩力的尸体标本。
随着尺骨远端切除量的增加，IOM中的应变降低。桡骨与尺骨之间的距离随着切除量的增加而减小，直至尺骨长度的20%。
IOM中应变的降低以及在切除20%水平时桡骨与尺骨之间距离的稳定为尺骨广泛切除后所见的满意临床结果提供了生物力学支持。尺骨远端的广泛切除可能是创建单骨前臂的可行挽救替代方案。
