CAJ | 학술논문

建立小腿传统截肢和骨肌肉成形切断术两种手术的动物模型，在 Simpleware 6．0和 Abaqus 6．12软件中建立两种实体模型和有限元模型。通过模拟生理条件下应力做加载，进行有限元分析，计算表明在相同的负载条件下，骨肌肉成形切断术残端胫腓骨的相对位移在对抗屈曲、伸直、压缩载荷时比传统截肢术明显减少；胫腓上联合的相对位移在对抗屈曲、伸直、外展载荷时比传统截肢术明显减少，而对抗内收载荷时则明显增加。骨肌肉成形切断术残端在对抗屈曲、伸直、外展、压缩和旋转载荷时腓骨承受的应力比传统截肢术明显增加，而胫腓上联合的应力比传统截肢术明显降低。因此，骨肌肉成形切断术利用腓骨骨桥增加腓骨承受力并稳定上胫腓联合，消除腓骨在受力时存在的不稳定，具有良好的生物力学效果。
건립소퇴전통절지화골기육성형절단술량충수술적동물모형，재 Simpleware 6．0화 Abaqus 6．12연건중건립량충실체모형화유한원모형。통과모의생리조건하응력주가재，진행유한원분석，계산표명재상동적부재조건하，골기육성형절단술잔단경비골적상대위이재대항굴곡、신직、압축재하시비전통절지술명현감소；경비상연합적상대위이재대항굴곡、신직、외전재하시비전통절지술명현감소，이대항내수재하시칙명현증가。골기육성형절단술잔단재대항굴곡、신직、외전、압축화선전재하시비골승수적응력비전통절지술명현증가，이경비상연합적응력비전통절지술명현강저。인차，골기육성형절단술이용비골골교증가비골승수력병은정상경비연합，소제비골재수력시존재적불은정，구유량호적생물역학효과。
Animal models of two kinds of transtibial amputation were established—the traditional transtibial amputation model and transtibial osteomyoplastic amputation model.Two kinds of entity model and finite element model were established in Simpleware 6.0 and Abaqus 6.12 software.By simulating the physiological loading,the displacement and stress changes of tibia and fibula distal were calculated by finite element analysis.In the same load conditions,the maximum relative displacement between the tibia and fibula in transtibial osteomyoplastic amputation model was significantly reduced than in traditiona lamputation model when stump against buck-ling,extension,vertical load;the relative displacement in the tibiofibular joint in transtibial osteomyoplastic amputation model was signif-icantly reduced than in traditional amputation model when against buckling,extension,abduction load,while that was significantly in-creased than in traditional amputation model when against adduction load.When stump against buckling,extension,abduction,vertical and rotation load,fibular stress in transtibial osteomyoplastic amputation model was significantly increased,while the stress of tibiofibular joint in transtibial osteomyoplastic amputation model was significantly reduced.The endurance and stability of proximal tibiofibular joint was increased by fibula bone bridge in transtibial osteomyoplastic amputation,the instability of fibula was reduced when loaded.The technique of transtibial osteomyoplastic amputation has a better biomechanical effect.