[原著］琉球大学医学部附属病院歯科口腔外科における顎変形症患者に対する顎矯正手術施行例の臨床的検討

概要

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Clinical evaluation of 33 patients who underwent orthognathic surgery was performed at Oral & Maxillofacial Surgery, University of the Ryukyus between 1990 and 1998. The results were as follows: 1. The ratio of males to females was 1:2.7. The age of the cases at operation ranged from 16 to 42 years, with a mean of 22.3 years. 2. All of clinical diagnosis was mandibular prognathism and 14 0f them were associated with open bite and/or mandibular asymmetry. 3. The predominant chief complaint was esthetic disturbance. 4. Twenty eight cases (84.8%) underwent sagittal splitting ramus osteotomy (SSRO), and the other cases with severe maxillofacial deformity underwent simultaneously Le Fort I osteotomy of the maxilla with SSRO. 5. 0rthognathic surgeries performed at our clinic have been approached perorally, so the incision of facial skin was not needed. 6. The number of operations have increased in recent years. 7. The average blood loss was 510 ml with SSRO and 750 ml with Le Fort I osteotomy with SSRO. The average operation time was 223 minutes in the former and 356 minutes in the latter. 8. Autologous blood transfusion was applied to 18 cases, and homologous blood transfusion was needed in only 2 cases.
琉球医学会,Ryukyu Medical Associationの論文