MAINTENANCE OF CONDYLE PROXIMAL SEGMENT POSITION IN ORTHOGNATHIC SURGERY

Twenty patients underwent bilateral sagittal ramus osteotomy for the correction of mandibular retrognathia. A condylar positioning device (CPD) was used intraoperatively in 10 patients to maintain preoperative condyle-proximal segment position, while the CPD was not used in the other 10 patients. Postoperatively, the condyle-proximal segment positions in both groups were compared and evaluated for vertical, horizontal, and rotational changes. A significant improvement (P < .05) was observed in the vertical and horizontal condylar position in the group in which the CPD was used. However, there was no significant difference in proximal segment rotation. © 1991.