摘要
目的 通过对拇腕掌关节面定点测量 ,计算弧长和曲率 ,为探讨拇腕掌关节的功能提供几何形态参数。方法 成年尸体上肢 60例 ( 12 0侧 ) ,分离第一掌骨和大多角骨并在关节面建立测点 ,游标卡尺测量 ,计算关节面弧长和曲率。结果 第一掌骨底关节面桡尺径弧长大于大多角骨远侧端关节面 ,而掌背径弧长却小于大多角骨远侧端关节面 ,两关节面桡尺径曲率均小于掌背径曲率。结论 大多角骨远侧端关节面桡尺方向曲度小于第一掌骨底 ,掌背方向大于第一掌骨底 ,两关节面掌背方向弯曲 ,桡尺方向较平坦。
Objective To get the geometric parameters of the articular surface of the trapeziometacarpal joint for dynamic analysis of the joint.Method 120 trapeziometacarpal joint surfaces were measured with vernier caliper,the arc length and the curveture of the surface were calculated.Result The arc length of the metecarpal joint surface in radial ulnar direction was longer but shorter in palm dorsal direction than that of the major multigulous one.Conclusion The articular surface of the trapeziometacarpal joint was more curve in palm dorsasl direction and more even in radial ulnar direction. [
出处
《潍坊医学院学报》
2001年第2期87-90,共4页
Acta Academiae Medicinae Weifang
关键词
拇腕掌关节
关节面
几何学测量
Trapeziometacarpal joint
Articular surface
Geometry
