关键词: 骨折延迟愈合, 体外冲击波治疗, 临床疗效分析

Abstract: Objective To compare the clinical effect between extracorporeal shock wave therapy（ESWT） and surgery in treatment of delayed union of fractures. Methods Thirty patients who visited our hospital from Jan. 2017 to Jan. 2018 with delayed union of fracture diagnoses were randomly divided into surgical group and ESWT group. Each group has 15 patients. In the clinical trial, the surgical group received surgical treatment, and X-rays were re-examined regularly every month. By comparison, the ESWT group was treated with extracorporeal shock wave. Besides, X-rays were re-examined after each course of treatment. X-ray callus growth at the fracture site was observed before treatment and at the 1^st, 2^nd and 3^rd courses of treatment. The formation of callus was scored. The clinical efficacy of extracorporeal shock wave therapy for delayed fracture healing was explored by measuring callus status, the period of healing time for fractured bones, the evaluation of fracture healing criteria, and treatment costs. Results Patients were followed up after at least 18 months of treatment. The X-ray scores of callus in both groups were higher than those before treatment. In the ESWT group, 13 patients totally recovered, while 1 partly recovered. Moreover, the average time of fracture healing was 8.267 months, and 1 had no radiological healing sign at the fracture site until the end of follow-up. In the surgical group, 14 patients totally recovered, using 8.714 months on average. One patient didn't show radiological signs of union at the fracture site until the end of follow-up. Additionally, there were no significant complications （such as vascular nerve injury, internal fixation） fracture observed in either group bythe end of follow-up. Conclusion Extracorporeal shock wave therapy has significant clinical efficacy in the treatment of delayed union of fractures, and it is worthy of clinical application because of itis non-invasive, simple, safe and effective, without complications and relatively low cost.

Key words: extracorporeal shock wave therapy, delayed union of fracture, clinical efficacy analysis