口内入路L型截骨术矫正高颧骨

目的：探讨口内入路截骨术矫正高颧骨的新方法。方法：根据颧骨的解剖特点,设计了一种新型的可完全截断颧骨体的L型截骨术：包括颧骨体上份斜形截开,颧骨体前份垂直截断及颧骨弓根部的“青枝状”折断。再参考颧骨高出的程度把颧骨体前下后份切除后将颧骨体和颧弓整体降低。结果：1995-2000年临床已应用39例。其中对称性高颧骨畸形32例,非对称性高颧骨畸形7例,均获满意效果。结论：L型截骨术矫正高颧骨畸形在保证颧骨体和颧弓解剖结构完整性的前提下降低高颧内,操作简单、并发症少,效果良好,是一种比较理想的手术方法。

Correction of prominent malar complex by L-type osteotomy

OBJECTIVE: To present a new method for correction of prominent malar complex by L-shaped osteotomy through an intraoral incision. METHODS: Based on the anatomical characteristics of the malar complex, we designed a new L-shaped osteotomy for malar eminence reduction. The procedure includes oblique incision of the upper part of the mala, vertical incision of the anterior part of the mala and "greenstick" fracture of the zygomatic arches. According to the severity of malar prominence, we resect part of the anterior-inferior part of the mala and lower the malar complex. RESULTS: This method was used in 39 patients with prominent malar complex. Of them, 32 were symmetrical and 7 were unsymmetrical. All the patients obtained good results. CONCLUSION: L-shaped osteotomy for correction of prominent malar complex is a relatively ideal surgical method with the advantages of simpler manipulation, fewer complications, better result, and ensuring the intactness of the structural characteristics of the malar complex.