半侧颜面短小畸形中的下颌骨畸形与外耳畸形的相关性分析

目的 分析半侧颜面短小畸形(Hemifacial Microsomia,HFM)中的下颌骨畸形与外耳畸形之间的统计学相关性。方法 以2013年1月至2014年12月来院就诊的118例HFM患儿为研究对象,根据改良的OMENS Plus分类系统进行分型,全部病例行面部多角度拍照、面部三维扫描及头部CT检查。根据照片及面部三维扫描对外耳畸形进行分类,根据头部CT结果进行三维重建,采用Mimics软件进行下颌骨测量并分类。应用逻辑回归模型对下颌骨畸形和外耳畸形进行统计学相关性分析。结果 118例患者中,全部患者都表现为下颌骨畸形,其中M1型27例(22.9%),M2A型45例(38.1%),M2B型41例(34.7%),M3型5例(4.2%)。所有患者都存在耳部轻度到重度畸形,其中E1型20例(16.9%),E2型24例(20.3%),E3型51例(43.2%),E4型23例(19.5%)。相关系数(P=0.647)显示,两者之间没有显著的统计学相关性。结论 本组HFM患者中的下颌骨畸形与外耳畸形的严重性没有统计学相关性。

Statistical Relationship between Mandibular Deformity and External Ear Malformation in Hemifacial Microsomia

Objective To analyze the statistical correlation between the mandibular deformity and external ear malformation of hemifacial microsomia（HFM）. Methods From January 2013 to December 2014, 118 cases with HFM were enrolled according to the modified OMENS plus classification system. Multiple view angle of photography, facial 3D scanning and head CT scan were performed in all cases. External ear malformation was classified according to multiple view angle of photography and facial 3D scanning. The mandible was measured and classified by 3D reconstruction and Mimics software.Statistical correlation between mandibular deformity and external ear malformation was analyzed by logistic regression model.Results In 118 patients, all patients showed mandibular deformity： type M1 in 27 patients（22.9%）, type M2 A in 45patients（38.1%）, M2 b type in 41 patients（34.7%） and type M3 in 5 patients（4.2%）. All patients presented mild to severe ear malformation： type E1 in 20 cases（16.9%）, type E2 in 24 cases（20.3%）, type E3 in 51 cases（43.2%） and type E4 in 23cases（19.5%）. Correlation coefficient（P =0.647） showed no significant statistical correlation between these two criteria.Conclusion There is no significant correlation of the severity between the mandibular deformity and external ear malformation in the patients with HFM.