CAJ | 학술논문

背景:单纯石膏外固定治疗桡骨远端粉碎性骨折难以实现良好复位和固定,近年来以牵引式夹板治疗的效果较好. 目的:运用生物力学的研究方法,对比分析牵引式夹板治疗桡骨远端粉碎性骨折时橡皮筋拉伸及应力松弛与效果的关系. 方法:236例桡骨远端粉碎性骨折患者按治疗方法分为治疗组和对照组,治疗组实行牵引式夹板治疗,对照组实行单纯手法整复夹板外固定.治疗后定期拍摄 X 射线片观察骨折愈合情况,腕关节功能采用Dienst 评估标准进行评定.采用 Instron 电子万能材料试验机3367对牵引的橡皮筋进行橡皮筋拉伸和应力松弛实验,测试橡皮筋的最大应力. 结果与结论:按意向性处理分析,全部进入结果分析.患者随访均超过5个月,最长随访13个月.Dienst功能评估:治疗组优68例,良42例,优良率93.2%,对照组优良率52.6%,治疗组优良率显著高于对照组.证实采用牵引式夹板治疗桡骨远端粉骨折,操作简单方便,临床疗效可靠.橡皮筋拉伸和应力松弛实验结果显示,橡皮筋的最大应力为46.97 N,最终应力保持在20.60 N,能够达到桡骨远端粉骨折复位治疗的牵引作用.
배경:단순석고외고정치료뇨골원단분쇄성골절난이실현량호복위화고정,근년래이견인식협판치료적효과교호. 목적:운용생물역학적연구방법,대비분석견인식협판치료뇨골원단분쇄성골절시상피근랍신급응력송이여효과적관계. 방법:236례뇨골원단분쇄성골절환자안치료방법분위치료조화대조조,치료조실행견인식협판치료,대조조실행단순수법정복협판외고정.치료후정기박섭 X 사선편관찰골절유합정황,완관절공능채용Dienst 평고표준진행평정.채용 Instron 전자만능재료시험궤3367대견인적상피근진행상피근랍신화응력송이실험,측시상피근적최대응력. 결과여결론:안의향성처리분석,전부진입결과분석.환자수방균초과5개월,최장수방13개월.Dienst공능평고:치료조우68례,량42례,우량솔93.2%,대조조우량솔52.6%,치료조우량솔현저고우대조조.증실채용견인식협판치료뇨골원단분골절,조작간단방편,림상료효가고.상피근랍신화응력송이실험결과현시,상피근적최대응력위46.97 N,최종응력보지재20.60 N,능구체도뇨골원단분골절복위치료적견인작용.
@@@@BACKGROUND: Simple plaster external fixation for the treatment of distal radius fracture is difficult to obtain the good reduction and fixation, and in recent years, traction splint has better treatment effect. @@@@OBJECTIVE: To comparatively analyze the effect of rubber band stretching and stress relaxation on the treatment of distal radius fracture with traction splint through biomechanical methods. @@@@METHODS: Total y 236 cases of distal radius comminuted fractures were divided into treatment group and control group according to the treatment method. The patients in the treatment group were treated with traction splints and the patients in the control group were treated with manipulative therapy and splints external fixation. The X-ray films were taken regularly to observe the healing of the fracture, and the wrist function was assessed with Dienst assessment standards. Instron Electronic Universal Material Testing Machine 3367 was used to detect the rubber band stretching and stress relaxation of the traction rubber band in order to test the rubber band maximum stress. @@@@RESULTS AND CONCLUSION: According to the intent-to-treat analysis, al the patients were involved in the final analysis. Al the patients were fol owed-up for more than 5 months, and longest for 13 months. Dienst functional assessment showed in the treatment group, excel ent in 68 cases, good in 42 cases and the excel ent and good rate was 93.2%; the excel ent and good rate of the control group was 52.6%, the excel ent and good rate of the treatment group was significantly higher than that of the control group. Traction splint for the treatment of distal radius fracture has the advantages of simple operation and reliable clinical efficacy. Rubber band stretching and stress relaxation results showed that the maximum stress of the rubber band was 46.97 N and it was maintained at 20.60 N, thereby achieving the traction effect in the reduction treatment of distal radius comminuted fractures.