Burgess R C
Department of Surgery, University of Kentucky, Lexington 40536.
J Hand Surg Am. 1987 Sep;12(5 Pt 1):771-4. doi: 10.1016/s0363-5023(87)80066-7.
The effect of progressive rotatory subluxation of the scaphoid on radio-scaphoid contact area was examined in a cadaveric model. Five degrees of subluxation reduced the contact area of the proximal pole by 44%, with a shift to the dorsal lip of the radius. At 20 degrees of subluxation the contact area was reduced by 77%, with a shift radially to the dorsal lip of the radial styloid. These findings explain the progression of radio-scaphoid arthritis from the radial styloid to the remainder of the fossa and reemphasize the importance of operative reduction of a scapho-lunate disassociation in the prevention of degenerative arthritis.
在一个尸体模型中研究了舟骨进行性旋转半脱位对桡舟关节接触面积的影响。半脱位5度时，近极接触面积减少44%，且向桡骨背侧唇移位。半脱位20度时，接触面积减少77%，且向桡骨茎突背侧唇桡侧移位。这些发现解释了桡舟关节炎从桡骨茎突向窝其余部分发展的过程，并再次强调了手术复位舟月分离在预防退行性关节炎中的重要性。
