下颌骨外板修复面斜裂鼻眶骨畸形

目的 探讨采用下颌骨外板修复面斜裂患者鼻眶骨骼畸形的适应证及临床意义。方法 经口内入路显露颏孔、下颌体、下颌角、下颌升支中下份的外侧骨面，用小裂钻和骨凿在下颌升支下份咬合平面水平、下颌骨外斜线及颏孔后3～5mm垂直线范围内劈开外板后取出骨块。将下颌骨外板进行适当塑形后，配合钛合金钉、板坚强内固定系统植入或贴附于需行骨骼重建部位。结果 采用下颌骨外板修复面斜裂骨骼发育不良或缺损7例。随访6个月～3年，移植骨与邻近相接骨组织愈合良好，局部骨骼重建效果完美稳定。结论 下颌骨外板与颅骨外板的骨密度接近但采取更加方便，并不遗留任何皮肤瘢痕，是目前修复面斜裂骨骼发育不良或缺损的比较理想的材料和方法。

Skeleton reconstruction of oblique facial clefts using mamdibular outer table

Objective This paper presents a new method of skeleton reconstruction for oblique facial clefts using autogenous bone of the mamdibular outer table. Methods In the operation, the mamdibular outer table was harvested through the intraoral approach. Assisted with internal rigid fixation technique, the mamdibular outer table was used to reconstruct the naso-orbital framework as inlay or onlay bone graft. Results Form 1993 to 2001, seven cases of oblique facial clefts were repaired with mamdibular outer table bone graft. Postoperative follow-up for 6 months to 3 years demonstrated that the grafted bone healed well with the adjacent bones. No obvious bone resorption was observed. The facial appearance was improved greatly. Conclusions The mamdibular outer table, with similar bone density to the calvarium, is easy to harvest without donor site scar. The method is quite ideal for skeleton reconstruction of oblique facial clefts.;