O'Neill O R, Morrey B F, Tanaka S, An K N
Orthopedic Biomechanics Laboratory, Mayo Clinic/Mayo Foundation, Rochester, Minnesota 55905.
Clin Orthop Relat Res. 1992 Aug(281):89-96.
Ten healthy male subjects were asked to complete a series of tasks that represent normal elbow function. They were then fitted with a custom adjustable brace that simulated elbow arthrodesis at 50 degrees, 70 degrees, 90 degrees, and 110 degrees flexion and asked to repeat the tasks. The 3 Space Isotrak system was used to measure shoulder motion; a triaxial wrist goniometer was used to measure wrist compensation; and all subjects were videotaped to qualitatively observe other compensatory motion. Unlike other joints, elbow arthrodesis at any angle results in a significant impairment, since the adjacent shoulder and wrist joints cannot compensate to allow completion of activities.
十名健康男性受试者被要求完成一系列代表正常肘部功能的任务。然后，他们佩戴了一种定制的可调节支具，该支具模拟了50度、70度、90度和110度屈曲的肘关节固定，并被要求重复这些任务。使用3空间Isotrak系统测量肩部运动；使用三轴腕关节测角仪测量腕部代偿情况；并且对所有受试者进行录像，以定性观察其他代偿运动。与其他关节不同，任何角度的肘关节固定都会导致明显的功能障碍，因为相邻的肩部和腕关节无法代偿以完成活动。
