李小兵,贾晓红,窦鹏,方丽丹.小腿假肢对线对静态站立时下肢受力的影响[J].中国康复医学杂志,2005,20(7):487~ |
小腿假肢对线对静态站立时下肢受力的影响 点此下载全文 |
李小兵 贾晓红 窦鹏 方丽丹 |
清华大学精仪系摩擦学国家重点实验室智能与生物机械分室,北京100084 |
基金项目:国家自然科学基金资助项目(50305013) |
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摘要: |
目的:研究小腿截肢患者站立状态下假肢对线对下肢受力特性的影响。方法:以假肢侧承重线和重力线作为评价指标,改变假肢矢状面和额状面的对线,采用激光测力平台测量患者静态站立时残侧承重线和重力线的位置。研究下肢受力状况的变化。结果:假肢侧承重线受踝关节对线的影响大于腿管对线调节的影响。并且力线随腿管与接受腔的前倾而前移,而额状面对线的影响很小;矢状面内重力线主要受踝关节对线调节的影响。并且与变化角近似正比例相关。结论:矢状面假肢对线调整对残侧下肢受力状况的影响较大,而额状面的对线调整影响较小。 |
关键词:对线 假肢侧承重线 重力线 下肢受力 |
The effects of prosthetic alignment on the lower limb during standing Download Fulltext |
Li XiaoBing;Gu XiaoGong;Dou Peng;Fang LiDan |
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Abstract: |
Objective: To investigate the effects of the prosthesis alignment on the loads applied to the lower limb.Method:Based on the prosthetic load line and the weight bearing line, the loads applied to the lower limb was studied as the below-knee amputee standing.Result:The alignment of the ankle joint affected the prosthetic load line more than the alignment of the pylon in the saggital plane, and the load line moved forward with the extension of the pylon and the flexion of the ankle, but the alignment in the frontal plane affected less. The weight bearing line in the saggital plane was influenced mainly by the alignment of the ankle. The movement was nearly proportional to the change of the angle.Conclusion:The load line of the prosthetic side and the weight bearing line in the saggital plane are influenced by the alignment in the sagittal plane but the alignment in the frontal plane affects less. |
Keywords:alignment prosthetic load line weight bearing line lower-limb load |
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