抄録
We made a clinical evaluation of 52 patients who underwent orthognathic surgery in our clinic during the past 3 years.
The results were as follows:
1. The number of patients showed a tendancy to increase year.
2. They were 11 male and 41 female patients with an average of 24.8 years of age.
3. Most of patients (67.3%) were diagnosed with mandibular prognathism with or without another jaw deformity.
4. 29 patients were operated on by sagittal splitting osteotomy (Obwegeser's method), 14 patients by Wassmund-Wunderer method, 12 patients by anterior alveolar segmental osteotomy for the mandible.
5. The average time of the operation and the average bleeding amounts during operations were 2hr. 28min. and 130ml, respectively, for a sagittal splitting osteotomy, 3hr. 12min. and 440ml, respectively, for bimaxillary anterior alveolar segmental osteotomies.
6. 4 (7.7%) out of 52 patients received blood transfusions.
7. The average period for intermaxillary fixation was as follows: within 3 days for sagittal splitting csteotomy with rigid internal fixation by lag screws and 3 weeks for intraoral vertical ramusos teotomy.
8. 41 patients underwent pre- and post-operative orthodontic treatments.
