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| 低强度脉冲超声促进骨折愈合的生物力学评价 | |
| 引用本文： | 孙保勇,陈文直,王智彪,赵纯亮,牛风环,徐世荣. 低强度脉冲超声促进骨折愈合的生物力学评价[J]. 中国矫形外科杂志, 2004, 12(6): 450-453 |
| 作者姓名： | 孙保勇 陈文直 王智彪 赵纯亮 牛风环 徐世荣 |
| 作者单位： | 1. 山东省肿瘤医院骨科,济南,250117 2. 重庆医科大学医学超声工程研究所 3. 重庆大学教育部生物力学与组织工程重点实验室 |
| 摘 要： | 目的 :探讨低强度脉冲超声对骨折愈合的生物力学影响。方法 :造成 3 0只成年新西兰兔双侧桡骨中部3mm骨缺损 ,左侧骨缺损处应用低强度脉冲超声波体外照射 ,右侧缺损处实行假照作为对照。定期取标本行三点弯曲生物力学测试。结果 :术后第 4、 5、 6周弯曲最大载荷、最大应力、最大吸收能量两组差异显著 (P <0 .0 1)。结论 :低强度脉冲超声促进骨折愈合 ,加快恢复骨组织机械强度。 |
| 关 键 词： | 低强度脉冲超声 生物力学 骨折愈合 |
| 文章编号： | 1005-8478(2004)06-0450-04 |
| 修稿时间： | 2003-10-29 |
Biomechanical study of low intensity pulsed ultrasound accelerating fracture-healing |
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| SUN Bao-yong,CHEN Wen-zhi,WANG Zhi-biao,et al.. Biomechanical study of low intensity pulsed ultrasound accelerating fracture-healing[J]. The Orthopedic Journal of China, 2004, 12(6): 450-453 | |
| Authors: | SUN Bao-yong CHEN Wen-zhi WANG Zhi-biao et al. |
| Affiliation: | SUN Bao-yong,CHEN Wen-zhi,WANG Zhi-biao,et al.Department of Orthopedics,Shandong Tumor Hospital,Ji'nan250117 |
| Abstract: | Objective:To study the biomechanical effects of low intensity pulsed ultrasound(LIPUS) on fracture-healing.Methods:Thirty mature Newsland rabbits were randomly assigned to 3 groups.The 3mm-long bone defects were made in both radii of each rabbit.Exterior LIPUS exposure was made to the left radius-defect.False exposure was made to the right radius-defect as control.3-point bending biomechanical testing were performed in rabbit radius at the end of the 4,5,6 week postoperatively.Results:Biomechanical findings included higher maximum load,maximum stress and maximum energy absorption by bending testing in the experimental side showed significant difference as compared with that in the control side ( P <0.01).Conclusion:Low intensity pulsed ultrasound accelerates fracture-healing and biomechanical recovery. |
| Keywords: | Low intensity pulsed ultrasound Fracture-healing Biomechanics |
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