title: Condylar resorption in orthognathic surgery: a retrospective study.
abstract: A retrospective study was performed to examine the occurrence of condylar atrophy in connection with orthognathic surgery. Patients with high-angle mandibular deficiency (n = 29) were selected from among those who underwent bimaxillary osteotomy (n = 93) during the period from January 1987 through December 1990. This group of 29 was examined for shortening of the ascending ramus of the mandible because of condylar resorption. In 9 of these 29 (31%), the ramus had resorbed more than 2 mm, or more than 6% of the total length of the ramus. All 9 of these patients were female. There was no correlation between resorption and age, the amount of retrognathism, or the presence of preoperative temporomandibular joint dysfunction. Female patients with high-angle retrognathism should be informed of the possibility of postoperative condylar resorption and should be followed with radiographic controls for at least 2 years after surgery.
authors: Department of Surgery, Division of Maxillofacial Surgery, Az St-Jan, Brugge, Belgium.
authors: C A
authors: CA
authors: De Clercq
authors: L F
authors: LF
authors: Neyt
authors: M Y
authors: MY
authors: Mommaerts
authors: J V
authors: JV
authors: Abeloos
authors: B M
authors: BM
authors: De Mot
mesh_terms: D000293:Adolescent; D000328:Adult; D001862:Bone Resorption / Q000209:etiology / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008335:Mandibular Condyle / Q000473:pathology*; D010027:Osteotomy / Q000009:adverse effects*; D063173:Retrognathia / Q000150:complications / Q000601:surgery*; D012189:Retrospective Studies