CAJ | 학술논문

目的：探讨在骨折治疗中不同宽度的捆绑带固定对骨折愈合的生物力学影响。方法45只新西兰大白兔随机分为3组，建立胫骨干非负重骨折动物模型，应用不同宽度（3 mm，6 mm，9 mm）捆绑带固定骨折，分别于术后2、4、6周行生物力学检查进行比较。结果术后第2周6 mm的捆绑带组抗折弯、扭转、拉伸均强度居中，9 mm组优于其他两组，3 mm 组最差，有明显统计学差异（P＜0.05）；术后4周、6周6 mm组及3 mm组抗扭转、折弯、拉伸强度均明显增强，而9 mm组增强幅度不大。4周时6 mm组抗拉伸力与其他两组无明显统计学差异（P＞0.05），抗折弯力及扭转力与9 mm组无统计学差异（P＞0.05），3 mm组仍低于9 mm组，有统计学差异（P＜0.05）；6周时，6 mm组抗扭转力均优于其他两组，存在统计学意义（P＜0.05），3 mm组优于9 mm组（P＜0.05），抗折弯力及抗拉伸力6 mm组与3 mm组无统计学差异（P＞0.05），均优于9 mm组（P＜0.05）。结论适宜宽度的捆绑带在骨折治疗的过程中均具有较好的力学性能，并且骨折愈合的力学结果更满意。
목적：탐토재골절치료중불동관도적곤방대고정대골절유합적생물역학영향。방법45지신서란대백토수궤분위3조，건립경골간비부중골절동물모형，응용불동관도（3 mm，6 mm，9 mm）곤방대고정골절，분별우술후2、4、6주행생물역학검사진행비교。결과술후제2주6 mm적곤방대조항절만、뉴전、랍신균강도거중，9 mm조우우기타량조，3 mm 조최차，유명현통계학차이（P＜0.05）；술후4주、6주6 mm조급3 mm조항뉴전、절만、랍신강도균명현증강，이9 mm조증강폭도불대。4주시6 mm조항랍신력여기타량조무명현통계학차이（P＞0.05），항절만력급뉴전력여9 mm조무통계학차이（P＞0.05），3 mm조잉저우9 mm조，유통계학차이（P＜0.05）；6주시，6 mm조항뉴전력균우우기타량조，존재통계학의의（P＜0.05），3 mm조우우9 mm조（P＜0.05），항절만력급항랍신력6 mm조여3 mm조무통계학차이（P＞0.05），균우우9 mm조（P＜0.05）。결론괄의관도적곤방대재골절치료적과정중균구유교호적역학성능，병차골절유합적역학결과경만의。
Objective To observe the influence of cerclage bands of three sizes on the biomechanical effects of fracture treatment. Methods Totally 45 New Zealand white rabbits were randomly divided into three groups, and the femoral shaft fracture animal models of non-weight-bearing were established. The three groups were all used with intramedullary fixation, and the cerclage bands were 3, 6, and 9 mm respectively. In 2, 4,6 weeks postoperatively, comparing biomechanics results. Results Postoperative 2 week, the 6 mm group in resistance to bending, torsion and tensile was moderate, and 9 mm group was better than the other two groups, the worst 3 mm group, there were significant statistical difference (P<0.05);Postoperative 4 weeks, 6 weeks, 6 mm and 3 mm group's data were significantly enhanced, 9 mm group increased modestly. At 4 weeks, 6mm group had no significant statistical difference (P>0.05) to the other two groups on resistance to bending force, and resistance to bending force and torque had no statistical difference (P>0.05) to 9 mm group, the 3 mm group was still less than 9 mm (P<0.05);Torsion force at 6 weeks, 6 mm group is better than the other two groups, 3 mm is better than the 9 mm group (P<0.05). Strength of resistance to bending and tensile strength of 6 mm and 3 mm group no statistical difference (P>0.05), were superior to 9 mm group (P<0.05). Conclusion 6 mm cerclage bands in the process of fracture treatment in this experiment has good mechanical properties, and the mechanics of fracture healing results more satisfied.