title: Total alloplastic temporomandibular joint reconstruction using Biomet stock prostheses: the University of Florida experience.
abstract: The purpose of this study was to report the subjective and objective outcomes of temporomandibular joint (TMJ) replacement with Biomet stock prostheses at a single institution in Florida. In this retrospective study, patients who underwent TMJ replacement using a Biomet stock prosthesis from 2005 to 2012 were analyzed. Subjective (pain, diet) and objective (maximal incisal opening) information was obtained. In addition, a quality of life measure was obtained pre- and postoperatively. Significance was set at <0.01. Thirty-six patients (26 bilateral, 6 left, and 4 right) who underwent TMJ replacement using a Biomet stock prosthesis were eligible for the study. Maximal incisal opening improved from 26.1mm preoperatively to a mean of 34.4mm postoperatively. The pain score decreased from 7.9 preoperatively to a mean of 3.8 postoperatively. Diet restriction decreased from 6.8 preoperatively to a mean of 3.5 postoperatively. Quality of life improved from a median of 4 preoperatively to a postoperative median of 2. Four implants were removed/replaced because of heterotopic bone formation, infection, and/or loose hardware. Follow-up ranged from 6 to 83 months. Overall, TMJ reconstruction using the Biomet stock joint is effective and safe in this patient population.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University of Florida, Gainesville, FL, USA. Electronic address: randysanovich@me.com.
authors.forename: R
authors.initials: R
authors.lastname: Sanovich
authors.affiliation: Department of Oral and Maxillofacial Surgery, University of Florida, Gainesville, FL, USA.
authors.forename: U
authors.initials: U
authors.lastname: Mehta
authors.affiliation: Division of Oral and Maxillofacial Surgery, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, USA.
authors.forename: S
authors.initials: S
authors.lastname: Abramowicz
authors.affiliation: Division of Facial Pain, Departments of Orthodontics and Neuroscience, University of Florida, Gainesville, FL, USA.
authors.forename: C
authors.initials: C
authors.lastname: Widmer
authors.affiliation: Department of Oral and Maxillofacial Surgery, University of Florida, Gainesville, FL, USA. Electronic address: fdolwick@dental.ufl.edu.
authors.forename: M F
authors.initials: MF
authors.lastname: Dolwick
mesh_terms: D000844:Ankylosis / Q000601:surgery; D018771:Arthralgia / Q000601:surgery; D019643:Arthroplasty, Replacement / Q000295:instrumentation*; D005260:Female; D005431:Florida; D006801:Humans; D007595:Joint Prosthesis; D008875:Middle Aged; D010147:Pain Measurement; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011788:Quality of Life; D012189:Retrospective Studies; D013705:Temporomandibular Joint Disorders / Q000601:surgery*; D016896:Treatment Outcome
keywords: biomet; temporomandibular joint; total joint prosthesis