title: Temporomandibular joint internal derangements in an orthognathic surgery population.
abstract: Of a selected group of 39 patients referred for orthognathic surgery, 38 were found to have some stage of internal derangement of the temporomandibular joint prior to surgery, a much higher incidence than previously reported in either symptomatic patients or asymptomatic individuals. Fifteen of 30 patients with follow-up greater than 12 months developed a new arthrosis after orthognathic surgery. All arthroses occurred in previously deranged joints. None of these patients has required joint surgery, but three have experienced pain. Internal derangement may be a contributing factor in the development of dentofacial deformities, and new loading of deranged joints after orthognathic surgery may be a cause of a new arthrosis and skeletal relapse.
authors.forename: J J
authors.initials: JJ
authors.lastname: Link
authors.forename: J W
authors.initials: JW
authors.lastname: Nickerson
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology*; D008297:Male; D008310:Malocclusion / Q000150:complications* / Q000601:surgery*; D008334:Mandible / Q000601:surgery; D008335:Mandibular Condyle / Q000503:physiopathology; D008437:Maxilla / Q000601:surgery; D010027:Osteotomy; D012008:Recurrence; D013705:Temporomandibular Joint Disorders / Q000209:etiology*