摘要
目的 研究应用步态分析评价足趾缺损对足功能的影响.方法 基于成人足部标本,制作不同跖骨缺损的模型并分为A、B、C、D、E、F组,应用万能生物力学试验机和F-scan足底压力鞋垫式传感器对足底应力分布进行测量,获得六组足底应力分布图像数据进行分析对比.结果 跖骨的缺损均会对足底压力变化与平衡性造成影响,除D、E、F组外,其余三组前足负重均出现下降(P＜0.05),A组T1、M2、M3区峰压强较健足增加(P＜0.05);C组M1、M2区峰压强较健足增加(P＜0.05);D组T1、M2、M3-M4区峰压强较健足增加(P＜0.05);E组、F组T1区峰压强较健足增加(P＜0.05).结论 跖骨的缺损均会对足功能产生不同程度影响,但第1跖骨、第2跖骨和多跖骨的缺损对足底重心分布影响最甚,临床选择手指再造术式应给予保留.
Abstract
Objective To evaluate the effect of toe defect on foot function by gait analysis.Methods Based on adult foot samples,different models of metatarsal defect were made and divided into groups A,B,C,D,E and F.The plantar stress distribution was measured by universal biomechanical testing machine and F-scan plantar pressure insole sensor,and the image data of plantar stress distribution were obtained.Results The defects of metatarsal bone all caused changes in plantar pressure and balance.Except for groups D,E and F,the forefoot weight of the other three groups decreased(P＜0.05),and the peak pressure in T1,M2 and M3 of group A was higher than that of healthy foot(P＜0.05).The peak pressure in M1 and M2 area of group C was increased compared with that of healthy foot(P＜0.05);The peak pressure in T1,M2 and M3-M4 regions of group D was increased compared with that of healthy foot(P＜0.05);The peak pressure in T1 region of groups E and F was higher than that of healthy foot(P＜0.05).Conclusion The defects of metatarsal bone all affect the foot function to some extent,but the defects of the first metatarsal bone,the second metatarsal bone and the multi-metatarsal bone most affect the distribution of the plantar center of gravity,and the clinical choice of finger reconstruction should be reserved.
基金项目
吉林省卫生健康科技能力提升项目(2021JC092)
维普
万方数据