摘要
目的探讨人体跟骨在冲击载荷作用下跟骨损伤的机制,为指导临床手术、固定和康复服务。方法建立跟骨动力学实验模型,采集20例新鲜人体尸跟骨标本,进行冲击实验。结果根据实验结果,得到了高速冲击载荷作用下人体跟骨的动态冲击响应,测量了人体跟骨冲击动力学性质,跟骨压缩性应变形成的粉碎性骨折。结论结果表明有必要建立人体跟骨损伤标准,包括跟骨生物力学冲击响应、骨粘弹性性质、决定伤害容限,评估损伤防护体系。
Objective To investigate injury mechanisms of human calcaneus under impact loading in order to provide scientific references to clinical serice including operation, fixation, and rehabilitation. Methods An experimental model of calcacalcaneal dynamics was established using twenty fresh human cadaveric calcaneus for impact loading test. Results Based on the impact experiment results, the dynamic response of the human calcaneus to the impact loading at high crash rate was analyzed, the characteristics of the human calcaneal impact dynamics were obtained, and a typical compressive strain was found to produce calcaneal crushing fracture. Coclusion The testing results suggested the importance to establish classifications of human calcaneal injuries, including the impact injury mechanisms,the quantification of biomechanical response to the impact loading, the viscoelastic properties of the bone, the determination of threshold for the maximal impact loading, and the measures for injury prevention.
出处
《医用生物力学》
EI
CAS
CSCD
2004年第4期240-244,共5页
Journal of Medical Biomechanics
关键词
跟骨
冲击损伤
生物力学
Calcaneus
Impact trauma
Biomechanics
