摘要： 目的：通过测量因髁突肥大而接受髁突高位切除术患者的术前、术后面部软/硬组织偏颌指数（AI），观察软/硬组织偏斜改善的关联。方法：接受单侧髁突高位切除术的髁突肥大患者15例，观测术前及术后随访时，软组织耳屏前点、下颌角点（Go’）、颏点（Me’）与面中线和Go’-Me’，及硬组织髁突外侧点（Col）、下颌角点（Go）、颏点（Me)和Go-Me的距离。计算得出对应AI值。结果：手术前后测量值配对t检验。经耳屏前点与经髁突外侧点AI值相关系数r=0.933，下颌角（AI） r=0.984，下颌骨体（AI）r=0.997，颏点偏移r=0.997，下颌升支（AI）r=0.645，仅耳屏前点（AI） P>0.01。结论：单纯的髁突高位切除术可有效的改善偏颌畸形；面部软组织偏斜的矫正与硬组织的矫正之间有较高的相关性；面部软/硬组织下颌升支偏斜的改善不完全等效。

关键词: 髁突肥大, 髁突高位切除术, 偏颌畸形

Abstract: Objective:  This study aimed to measure the patients’ soft- and hard-tissue facial asymmetry indices before operation and follow-up after condylectomy, and evaluate the correction between them. Methods: 15 patients treated with unilateral high partial condylectomy were enrolled in this study. The distances between preaureculare , gonion (Go'), mesion point(Me') to midsagittal line and Go'-Me' in the soft-tissue, and corresponding point in the hard-tissue were  measured. Statistical comparisons were performed with paired t-test and correlation Pearson-test between groups, after asymmetry indices (AI) were calculated. Results: In the paired t test, only the preauricular points (AI) were found P>0.01. The distance between preaureculare and condylar point to midsagittal (AI) correlation coefficient r=0.933, gonion (AI) r=0.984,mandibular body (AI) r=0.997, mesion(AI) r=0.997and mandibular ramus (AI) r=0.645. Conclusion: Condylectomy operation can restore facial asymmetry effectively. Soft-tissue correction showed high coordination  with the hard-tissues.  Mandibular ramus deformity improvement is not completely equivalent to soft- and hard-tissue correction.

Key words: condylar hyperplasia, condylectomy, facial asymmetry

中图分类号: 

• R782.6