title: Retrospective comparison of autogenous cosotochondral graft and coronoid process graft in the management of unilateral ankylosis of the temporomandibular joint in adults.
abstract: We retrospectively compared the clinical outcomes of autogenous coronoid process grafts (n=32) and costochondral grafts (n=28) in condylar reconstruction for the treatment of unilateral ankylosis of the temporomandibular joint (TMJ) in adults. Preoperative and postoperative assessments included diet scores, cone-beam computed tomography (CT), maximal interincisal opening, lateral excursion, and mandibular deviation on opening the mouth. There were no significant differences between the 2 groups in the measurements before and after the operation with respect to incisal opening, lateral excursion, mandibular deviation, diet scores, or recurrence rate, but in both the postoperative incisal opening, lateral excursion, and diet scores had improved significantly compared with preoperatively. After costochondral graft 3 patients developed intraoperative plural tears, and 6 had temporary pain at the donor site. The frontal branch of the facial nerve was temporarily affected in 5 patients after costochondral graft and 3 after coronoid process grafts, all of which recovered in 3-6 months. There was no recurrence after coronoid process grafting, and one after costochondral grafting. The clinical outcomes in both groups were satisfactory and comparable. Autogenous coronoid process grafting may therefore be a good alternative for condylar reconstruction in patients with ankylosis of the TMJ.
authors.affiliation: The State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China. Electronic address: 505214330@qq.com.
authors.forename: Weina
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Stomatology Department of the General Hospital of Chinese PLA, 28 FuXing Road, Beijing 100853, China. Electronic address: gubin000@sina.com.
authors.forename: Bin
authors.initials: B
authors.lastname: Gu
authors.affiliation: Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China. Electronic address: drhu@vip.sohu.com.
authors.forename: Jing
authors.initials: J
authors.lastname: Hu
authors.affiliation: Stomatology Department of the General Hospital of Chinese PLA, 28 FuXing Road, Beijing 100853, China. Electronic address: 397543765@qq.com.
authors.forename: Bin
authors.initials: B
authors.lastname: Guo
authors.affiliation: Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China. Electronic address: 43875013@qq.com.
authors.forename: Ge
authors.initials: G
authors.lastname: Feng
authors.affiliation: Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China. Electronic address: zss_1977@163.com.
authors.forename: Songsong
authors.initials: S
authors.lastname: Zhu
mesh_terms: D000293:Adolescent; D000328:Adult; D000844:Ankylosis / Q000601:surgery*; D064592:Autografts / Q000637:transplantation*; D016025:Bone Transplantation / Q000379:methods*; D003094:Collagen / Q000627:therapeutic use*; D054893:Cone-Beam Computed Tomography / Q000379:methods; D004032:Diet; D005155:Facial Nerve Diseases / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008334:Mandible / Q000601:surgery; D008335:Mandibular Condyle / Q000601:surgery*; D008875:Middle Aged; D010149:Postoperative Pain / Q000209:etiology; D010994:Pleura / Q000293:injuries; D016059:Range of Motion, Articular / Q000502:physiology; D012008:Recurrence; D012189:Retrospective Studies; D012272:Ribs / Q000601:surgery; D013705:Temporomandibular Joint Disorders / Q000601:surgery*; D060053:Transplant Donor Site / Q000601:surgery; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D003094:Collagen
keywords: Ankylosis; Coronoid process; Costochondral bone; Reconstruction; Temporomandibular joint