摘要
目的通过监测外固定支架相关参数,探讨骨折端应力环境与骨折愈合的关系。方法15例骨折患者采用外固定支架固定,通过压力传感器,监测骨折愈合过程中肌肉动力-弯矩的变化,计算机同步数据采集。结果手术1周后肌肉动力-弯矩的斜率为0.41±0.06,2周后的斜率为0.86±0.12,3周后的斜率增至2.84±0.30,4周后的斜率为1.44±0.21,5周后的斜率降至0.11±0.01,6周后的斜率为0.10±0.02,7周后的斜率为0.09±0.02。手术后2~5周与前1周相比,肌肉动力-弯矩的斜率差异均有统计学意义(P<0.01);手术后6~7周与前1周相比,斜率差异无统计学意义(P>0.05)。结论随着骨折的愈合,骨折端位移减小,骨折端越发稳定,对支架形变的影响逐渐减少。通过监测外固定器械的力学变化,可以避免或及时纠正不利于骨折愈合的因素,提高骨折修复成功率。
Objective:To explore the relationships between bone stress and fracture healing through the dynamic observation on myodynamia-bending moment of external fixation.Methods:Fifteen fracture patients were fixed by external fixation.The changes of myodynamia-bending moment during the functional training were measured by compressive stress transducer,and the data was synchronously collected by computer.Results:One week after operation,the slope of myodynamia-bending moment was 0.41±0.06;two weeks after operation,the slope was 0.86±0.12;three weeks after operation,the slope increased to 2.84±0.30;and four weeks after operation,the slope was 1.44±0.21;five weeks after operation,the slope decreased to 0.11±0.01;six weeks after operation,the slope was 0.10±0.02;seven weeks after operation,the slope was 0.09±0.02.Compared with the preceding week,the slope changed significantly between the second week and the fifth week after operation(P<0.01),while the slope didn't change significantly between the sixth week and the seventh week after operation(P>0.05).Conclusion:With the healing of fracture,the displacement of fracture decreases,the bone becomes more stable,and the impact on deformation of the external fixation gradually reduces.By observing the stress changes of external fixation,the problems against fracture healing can be avoided and corrected timely,and the success rate of fracture repair will be improved.
作者
方斌
燕好军
杨海韵
梁伟春
FANG Bin;YAN Hao-jun;YANG Hai-yun;LIANG Wei-chun(Yangpu Hospital of TCM,Shanghai 200090,China;Foshan Hospital of TCM,Foshan 528000,China)
出处
《泰山医学院学报》
CAS
2020年第1期51-53,共3页
Journal of Taishan Medical College
关键词
外固定支架
肌肉动力-弯矩
应力
骨折愈合
external fixation
myodynamia-bending moment
stress
fracture healing
