OBJECTIVE: to probe into the mechanism of extracorporeal shock wave in treatment of nonunion and delayed union of bone fracture and the existed unsolved problems in the clinical study.
目的：探讨体外冲击波在治疗骨折不愈合和延迟愈合的机制以及临床研究中存在的问题。
The radiographs displayed well formed atrophic non union. In Group B, after 6 weeks, all rabbits were found that fracture healing was delayed, with some also having deformity.
组中所有动物在6周内截骨端出现延迟愈合，部分伴有畸形，骨断端有大量肥大骨痂形成。
In the fresh fracture group, no delayed union or nonunion was observed, and the solid bone healing time averaged 2.3 months.
无骨折延迟愈合或骨不连患者，骨牢固愈合时间平均为2.3个月。
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