Watanabe K, Nakamura R, Horii E, Miura T
Department of Orthopaedic Surgery, Branch Hospital of Nagoya University, School of Medicine, Japan.
J Hand Surg Am. 1993 Jul;18(4):686-90. doi: 10.1016/0363-5023(93)90319-X.
Biomechanical analysis of force transmission through the lunate was performed with the use of a two-dimensional mathematical model to evaluate the usefulness of radial wedge osteotomy, a procedure that decreases radial inclination, in the treatment of Kienböck's disease. The forces acting on the carpal bones were compared before and after radial wedge osteotomy in 29 patients with Kienböck's disease. The average osteotomy angle was 9.6 degrees. The total force through the lunocapitate joint at the midcarpal level was decreased by 23%, while the total force through the radiolunate and ulnolunate joints at the radioulnocarpal level was decreased by 10% and 36%, respectively. These changes correlated directly with the osteotomy angle and demonstrate decompression of the lunate by radial wedge osteotomy.
利用二维数学模型对通过月骨的力传递进行生物力学分析，以评估桡侧楔形截骨术（一种可减小桡侧倾斜度的手术）在治疗月骨无菌性坏死中的效用。对29例月骨无菌性坏死患者在桡侧楔形截骨术前和术后作用于腕骨的力进行了比较。平均截骨角度为9.6度。在腕中关节水平通过月头关节的总力降低了23%，而在桡尺腕关节水平通过桡月关节和尺月关节的总力分别降低了10%和36%。这些变化与截骨角度直接相关，表明桡侧楔形截骨术可使月骨减压。
