牵引成骨技术在牙颌面畸形矫治中的应用

APPLICATION OF DISTRACTION OSTEOGENESIS IN THE TREATMENT OF TEETH MAXILLOFACIAL DEFORMITY

目的 :本研究分析评价牵引成骨技术 (DistractionOsteogenesis,DO)对牙颌面畸形的矫治 ,探讨其在牙颌面畸形矫治中的应用及价值。材料和方法 :自 1997年 11月至今共运用DO技术治疗牙颌面畸形患者 39例 ,其中男 19例 ,女 2 0例。年龄 8～ 43岁 ,平均年龄 17 31岁。上颌骨严重发育不足 18例 ,Crouzon综合征 1例 ,小下颌及偏颌畸形 2 0例。结果 :最小牵引幅度 8 0mm ,最大牵引幅度 2 4 4mm。所有患者的牙颌面畸形均得到了明显的改善。随访 1— 2 4月 ,无一例术后不成骨的病例。二例小下颌畸形患者并发牵引器周围局部软组织感染 ,但并没有影响新骨的形成。结论 :DO技术在牙颌面畸形矫治中具有手术创伤小、操作简单、避免了植骨及由此带来的供、受区并发症 ,显示了巨大的临床应用潜力 。

WT5”BZ]To study the application and value of distraction osteogenesis in the treatment of teeth maxillofacial deformity.[WT5”HZ]Methods:[WT5”BZ]From 1997 we have completed 39 cases by distraction osteogenesis.In these cases there were 19 males and 20 females.the ages of the patients were from 8 43,and at a average age of 17.31.18 cases of them were the patients who have the maxillary retrusions,1 case with Crouzon’s syndrome,20 cases with micromandibles & mandibular asymmetry.[WT5”HZ]Results:[WT5”BZ]The distraction was fulfilled with a range of 8.0 24.40mm,the deformity of all patients was corrected satisfactorily.The follow up period ranged from a minimum of 1 month to a maximum of 24 months,there was no case who didn’t form new bone after surgery.Local soft tissue infection was noted around the distractor frame in two micromandible,however,new bone formation was not affected by the complication.[WT5”HZ]Conclusion:[WT5”BZ]Distraction osteogenesis has the advantages of avoiding bone grafting and donor side morbidity,reducing the extent of operation. [WT5”HZ]