CAJ | 학술논문

目的比较分析克氏针、空心加压螺钉与掌侧锁定加压接骨板治疗桡骨远端关节内骨折的生物力学特性.方法将18例成人上肢防腐标本制作成桡骨远端关节内骨折模型,随机分成3组,分别进行克氏针、空心加压螺钉和掌侧锁定加压接骨板固定.并将3组标本置于生物力学测试机上进行轴向压缩实验,测定每例标本骨折线发生垂直移位、水平移位和完全破坏时的压缩载荷.结果掌侧锁定接骨板组、空心加压螺钉组和克氏针组的垂直移位压缩载荷分别为(808.8±25.0)N、(404.2± 26.0)N和(243.1±23.5)N;水平移位压缩载荷分别为(1196.1±114.8)N、(439.5±28.7)N和(323.7± 20.4)N;破坏压缩载荷分别为(1333.6±139.3)N、(463.1±31.7)N和(348.2±20.4)N.三组之间的垂直移位、水平移位和破坏压缩载荷的差异均有统计学意义.结论空心加压螺钉治疗桡骨远端关节内骨折的稳定性优于克氏针,次于掌侧锁定加压接骨板.
목적 비교분석극씨침、공심가압라정여장측쇄정가압접골판치료뇨골원단관절내골절적생물역학특성.방법 장18례성인상지방부표본제작성뇨골원단관절내골절모형,수궤분성3조,분별진행극씨침、공심가압라정화장측쇄정가압접골판고정.병장3조표본치우생물역학측시궤상진행축향압축실험,측정매례표본골절선발생수직이위、수평이위화완전파배시적압축재하.결과 장측쇄정접골판조、공심가압라정조화극씨침조적수직이위압축재하분별위(808.8±25.0)N、(404.2± 26.0)N화(243.1±23.5)N;수평이위압축재하분별위(1196.1±114.8)N、(439.5±28.7)N화(323.7± 20.4)N;파배압축재하분별위(1333.6±139.3)N、(463.1±31.7)N화(348.2±20.4)N.삼조지간적수직이위、수평이위화파배압축재하적차이균유통계학의의.결론 공심가압라정치료뇨골원단관절내골절적은정성우우극씨침,차우장측쇄정가압접골판.
Objective To compare the biomechanical properties of three fixation options,i.e.Kirschner wires,cannulated screws and locking compression plates,for intra-articular fractures of the distal radius.Methods Intra-articular distal radius fracture was created in 18 cadaver radius specimens.The specimens were randomly assigned to K-wire fixation group,cannulated screw fitation group,and volar locking compression plate fixation group.All specimens were placed in the material testing machine for axial loading test.The mechanical loads at vertical displacement,lateral displacement and the failure point in the fracture line were recorded.Results The vertical displacement load in the volar locking compression plate fixation group,cannulated screw fixation group and K-wire fixation group was (808.8 ± 25.0) N,(404.2 ± 26.0) N and (243.1 ± 23.5) N respectively.The lateral displacement load in these three groups was (1196.1 ± 114.8)N,(439.5 ± 28.7)N and (323.7 ± 20.4)N,respectively,while the load at the destroying point was (1333.6± 139.3)N,(463.1 ± 31.7)N and (348.2 ± 20.4)N.The differences in the axial compression load among the three groups were statistically significant.Conclusion Cannulated screw fixation provides more stability than K-wire fixation,but less stability than volar locking compression plating in the treatment of intra-articular fractures of the distal radius.