2000 Volume 10 Issue 1 Pages 68-73
A case of osteopathia striata with mandibular prognathism treated by orthognatic surgery is reported. The patient was 17-year-old male with the complaint of mandibular prognathism. In preoperative radiological examinations, sclerosis of the skull and mandible with wave-like striations were found. From the radiographs of the knee, striated pattern of the metaphysis of the long bones parallel to their long axis was found and a diagnosis of osteopathia striata was made. Bilateral sagittal split ramus osteotomy was carried out at the age of 21 years 1 month, however, bone cutting and segmentationwere very difficult owing to the thick cortical bone of more than 10mm at the thickest portion. Partial osteonecrosis was found in the anterior portion of the left side proximal bone segment in the subsequent surgery to remove the fixation screws performed after four months. This seemed to be caused by insufficient blood supply and heat generation while cutting the bone. Fifteen months after surgery, the postoperative course was uneventful and no sign of skeletal relapse had been found.
