穿戴下肢假肢者站立平衡功能的定量评定

目的 定量分析穿戴下肢假肢者的站立平衡功能。方法 采用人体重心动摇检测仪测试正常对照组21例，穿戴假肢者22例。根据穿戴假肢者的截肢平面将其分为单侧小腿假肢组、单侧大腿假肢组及双侧大腿假肢组，共3组，并对各组所得数据进行分析比较。结果 所有穿戴假肢者重心动摇轨迹长度增加，动摇面积增大，其中以双侧穿戴假肢者最为显著，与正常对照组比较，差异具有显著性。结论 应用重心检测仪可对穿戴假肢患者平衡障碍及程度进行定量分析，其结果有助于临床医生综合分析判断假肢及残端情况，并可作为判断假肢穿戴合适与否的辅助指标之一。

A quantitative assessment of standing balance function in patients with lower extremity prosthesis

Objective To evaluate quantitatively the standing balance function of patients with lower limb prosthesis. Methods Twenty-two patients were divided into three groups according their conditions: group 1 consisted of patients with one leg amputated, group 2 consisted of patients with one amputated at high level, group 3 consisted of patients with both thighs amputated, and twenty-one normal subjects served as control. Parameters including the sway magnitude of gravity center, circumference area, drift in X vector, etc., were recorded and analyzed. Results The data obtained revealed that the sway magnitude, circumference area were increased, in all the cases, especially in those with lower limb prosthesis at both sides. Compared to the control group, the difference was significant( P <0.05). Conclusion Standing balance function assessment is useful to evaluate the condition of prosthesis and stump in patients, and can also be used for assessing the effectiveness of rehabilitation training.