Clinical Outcome of Orthognathic Surgery for the Last 10 Years in the Department of Oral and Maxillofacial Surgery, Miyazaki University Hospital

Abstract

A clinical outcome was performed on 243 cases of orthognathic surgery at the Department of Oral and Maxillofacial Surgery, Miyazaki University Hospital from 2000 to 2009.
The results were as follows:
1. The total number of patients was 243 cases, and the average annual number of patients was 24.3.
2. The patients were 102 males and 141 females (male to female ratio of 1:1.38).
3. The age of the patients ranged from 9 to 58 years old with a mean of 21.1 years old.
4. The most predominant diagnosis was mandibular prognathism (70.8%), in which those with and without another type of jaw deformity were 21.4% and 49.4%, respectively.
5. Sagittal splitting ramus osteotomy (SSRO) alone was the most frequent surgical procedure, accounting for 89.7%.
6. The PLLA plate and the titanium miniplate for osteosynthesis during SSRO were used for 87.6% and 12.4%, respectively.