title: A comparative study of different surgical methods in the treatment of traumatic temporomandibular joint ankylosis.
abstract: Two different surgical methods for the treatment of unilateral traumatic temporomandibular joint (TMJ) ankylosis with a medially displaced residual condyle are described. Eighteen patients with unilateral traumatic TMJ ankylosis and a medially displaced residual condyle, treated between 2008 and 2013, were included in this study. Group A patients (n=10) were treated with an autogenous coronoid process graft (ACPG) for reconstruction of the mandibular condyle, while group B patients (n=8) were treated by lateral arthroplasty (LAP); a temporalis myofascial flap (TMF) was used as interpositional material in both groups. The long-term results of the two treatments were compared through postoperative computed tomography and clinical follow-up examinations. The two groups were compared in terms of the recurrence rate, facial pattern change, and improvement in maximum inter-incisal opening (MIO) using SPSS 18.0 software. All patients were followed up for 12-24 months. Two patients in group A (20%) had reankylosis; no reankylosis was observed in group B patients. Compared with the ACPG, LAP improved the facial pattern and MIO significantly (P<0.05). LAP is a feasible and effective surgical method for the treatment of unilateral traumatic TMJ ankylosis when the displaced residual condyle is bigger than one third of the condylar head.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Zunyi Medical University, Zunyi, China.
authors.forename: F
authors.initials: F
authors.lastname: Xu
authors.affiliation: Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Zunyi Medical University, Zunyi, China.
authors.forename: L
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Zunyi Medical University, Zunyi, China. Electronic address: mancheng1106@163.com.
authors.forename: C
authors.initials: C
authors.lastname: Man
mesh_terms: D000293:Adolescent; D000328:Adult; D000844:Ankylosis / Q000601:surgery*; D001178:Arthroplasty / Q000379:methods*; D016025:Bone Transplantation / Q000379:methods*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D019651:Plastic Surgery Procedures / Q000379:methods*; D012008:Recurrence; D013524:Surgical Flaps; D013705:Temporomandibular Joint Disorders / Q000601:surgery*; D016896:Treatment Outcome
keywords: recurrence; temporomandibular joint ankylosis; trauma; treatment