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目的研究放疗对口腔颌面恶性肿瘤根治术后下颌骨缺损钛板立即修复的影响。方法对３６例下颌骨缺损钛板立即修复患者进行对照研究观察，其中术后放疗组１３例，对照组２３例，放疗组局部放疗６０Ｃｏ４０００～６５４０ｃＧｙ，平均５４６５ＣＧｙ。随诊６～３５月。结果总钛板修复成功率７５％（２７／３６），其中放疗组７６，９％（１０／１３），对照组７３．９％（１７／２３），两组比较无差异（Ｐ＞０．０５）。钛板修复失败原因为：局部感染不愈，钛板暴露，肿瘤复发。结论钛板修复下颌骨缺损后可以进行放疗。
Objective To study the effect of radiotherapy on immediate repair of mandibular titanium plate after radical mastectomy of oral and maxillofacial malignancies. Methods Thirty-six patients with mandibular defect with immediate repair of titanium plate underwent a controlled study. Among them, 13 were treated with radiotherapy and 23 were treated with radiotherapy. The radiotherapy group received 60Co4000 ~ 6540 cGy of radiotherapy, with an average of 5465 CGy. Follow-up 6 ~ 35 months. Results The success rate of total titanium plate repair was 75% (27/36), of which, 76,9% (10/13) in radiotherapy group and 73.9% (17/23) in control group showed no difference (P> 0). 05). Titanium repair failed due to local infection unhealed, titanium exposure, tumor recurrence. Conclusion Titanium plate can be used for radiotherapy after mandibular defect repair.
