2021 Volume 37 Issue 3 Pages 78-84
This study compared the maxillary sinus volume, orbital volume, and frontal sinus volume of the healthy and affected sides in patients with hemifacial microsomia（HFM）, and examined the possibility that the disease had affected the inside skeletal structure of the face.
A survey was conducted among 12 patients with HFM（Pruzansky-Kaban classification：Type II）, excluding those with maxillary sinusitis or mucosal thickening, and 10 patients who visited to the hospital due to trauma were included as the control group. After constructing the 3DCT images of these patients, the maxillary, orbital, and frontal sinuses were extracted, and their volumes were measured using a 3D measurement software. Intragroup and intergroup comparisons of the HFM and control groups were performed statistically.
The maxillary sinus volume of patients with HFM（Type II）proved to be significantly smaller by 13.5% on the affected side than on the healthy side in the intragroup comparison, while in the intergroup comparison, it was significantly smaller by 18.8% than that in the control group. The orbital volume of HFM was found to be 4.1% significantly smaller on the affected side than on the healthy side in the intragroup comparison, but there was no significant difference in the intergroup comparison with the control group.
Our results suggest that the facial deformity in patients with HFM（Type II）was affected by asymmetry in the lower to the middle part of the face, while the upper part of the face was not affected.
