Ishii S
Department of Orthopaedic Surgery, St. Marianna University School of Medicine, Kanagawa, Japan.
Nihon Seikeigeka Gakkai Zasshi. 1992 Dec;66(12):1232-44.
The present investigator studied following degenerative changes of the articular cartilage of the radiocarpal joint: the ruptures of the scapholunate and the lunotriquetral interosseous ligaments (S-L lig., L-T lig.), the shape of the scaphoid and the lunate fossa of the distal radius. We studied 120 wrist joints from 74 cadaveric specimens (age 20-97, average age 68). The cartilaginous changes were correlated significantly with age (p < 0.01). The cartilaginous changes were most commonly found in the ulnar demarcation of the lunate, next commonly, in the radiodorsal demarcation of the scaphoid fossa, thirdly, in the radiodorsal demarcation of the scaphoid and finally, in the radial demarcation of the scaphoid fossa. Clearly, the cartilaginous changes in the ulnar demarcation of the lunate intensified proportionally as the ulnar variance increased (p < 0.05) and as the radial inclination decreased (p < 0.05). The S-L lig. and the L-T lig. ruptures increased as the age of the specimens increased. The cartilaginous changes of the interosseous ligament rupture group were stronger than those of the non ligament rupture group (p < 0.01). The concavity of the scaphoid fossa in the dorsovolar direction exhibited an S shaped curve, a convexity on the dorsal side and a concavity on the volar side. The other concavities exhibited a smooth concave curve. From these results, it was concluded that the stability of the wrist joint in extention and the cartilaginous changes of the radioscaphoid joint were due to the volar concavity of the scaphoid fossa of the radius.
舟月和月三角骨间韧带（S-L韧带、L-T韧带）的断裂、舟骨的形状以及桡骨远端的月骨窝。我们研究了74具尸体标本（年龄20 - 97岁，平均年龄68岁）的120个腕关节。软骨变化与年龄显著相关（p < 0.01）。软骨变化最常见于月骨的尺侧分界处，其次常见于舟骨窝的桡背侧分界处，第三常见于舟骨的桡背侧分界处，最后常见于舟骨窝的桡侧分界处。显然，随着尺骨变异增加（p < 0.05）以及桡骨倾斜度减小（p < 0.05），月骨尺侧分界处的软骨变化成比例加剧。S-L韧带和L-T韧带的断裂随着标本年龄的增加而增多。骨间韧带断裂组的软骨变化比非韧带断裂组更强（p < 0.01）。舟骨窝在掌背方向的凹陷呈S形曲线，背侧为凸面，掌侧为凹面。其他凹陷呈平滑的凹曲线。从这些结果得出结论，腕关节伸展时的稳定性以及桡舟关节的软骨变化归因于桡骨舟骨窝的掌侧凹陷。
