title: Erosion and heterotopic bone formation after alloplastic temporomandibular joint reconstruction.
abstract: Twenty-three temporomandibular joint arthroplasties using metallic condylar prostheses were performed because of severe ankylosis (8 patients), segmental mandibular resections in tumor surgery (9 patients), and after extensive trauma (2 patients). A clinical and radiological follow-up study showed heterotopic bone formation in 52% of cases and glenoid fossa resorption in 43%. In one patient with rheumatoid arthritis the condyle eroded through the skull base 10 months after surgery. Seven prostheses (30%) were removed and/or exchanged during the average 27.6-month follow-up.
authors.affiliation: Helsinki University Central Hospital, Finland.
authors.forename: C
authors.initials: C
authors.lastname: Lindqvist
authors.forename: A L
authors.initials: AL
authors.lastname: Söderholm
authors.forename: D
authors.initials: D
authors.lastname: Hallikainen
authors.forename: L
authors.initials: L
authors.lastname: Sjövall
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000844:Ankylosis / Q000209:etiology / Q000601:surgery; D001178:Arthroplasty / Q000009:adverse effects*; D001860:Bone Plates; D001862:Bone Resorption / Q000209:etiology; D001863:Bone Screws; D005260:Female; D006801:Humans; D007595:Joint Prosthesis / Q000009:adverse effects*; D008297:Male; D008335:Mandibular Condyle / Q000601:surgery; D008339:Mandibular Neoplasms / Q000601:surgery; D008670:Metals; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000209:etiology*; D012008:Recurrence; D013704:Temporomandibular Joint / Q000293:injuries / Q000601:surgery*; D013705:Temporomandibular Joint Disorders / Q000601:surgery
chemical_list: D008670:Metals