Volume and distances of the maxillary sinus in craniofacial deformities with midfacial hypoplasia

OBJECTIVE: Craniofacial deformities (CFDs) frequently accompany midfacial hypoplasia. The authors evaluated characteristics of maxillary sinuses that had CFDs with variable degrees of midfacial hypoplasia STUDY DESIGN: Cross-sectional Survey with chart review SETTING: Department of Plastic and Reconstructive Surgery. Severance Hospital, Yonsei University, College of Medicine, Seoul, Republic of Korea. SUBJECTS AND METHODS: We investigated 40 patients with CFDs having midfacial hypoplasia. Study group I (SG 1) consisted of eight patients with Crouzon syndrome (16 maxillary sinuses) Study group 2 (SO 2) consisted of 10 patients with midfacial hypoplasia after palatoplasty (20 maxillary sinuses). Study group 3 (SO 3) consisted of 22 patients With Pruzansky grade I hemifacial microsomia (22 maxillary sinuses on the affected sides). Data on volume and three-dimensional distances (height, width. and depth) from computed tomography were collected and compared with each corresponding control group Correlation coefficient between volume and the three distances, was also calculated. RESULTS: The volume, height, width, and depth of the maxillary sinus were significantly decreased in SO I (P < 0.01). In SO 2, only the depth was significantly decreased (P < 0 05) In SG 3. there were no significant differences in any parameters. A multiple-regression analysis between the volume and the three distances showed a statistically significant relationship for width in SG 1. width and height in SG 2, and ill distances in SO 3 CONCLUSION: There were differences in the structure of the maxillary sinuses among patients with different CFDs. (C) 2009 American Academy of Otolaryngology-Head and Neck Surgery Foundation. All rights reserved.