title: Morphological evaluation of temporomandibular joint after open and closed treatment of type B diacapsular condylar fractures in sheep.
abstract: The incidence of diacapsular fracture of the mandibular condyle (DFMC) has increased in recent years. However, the specific modality of treatment which would provide maximum benefit and good results for adult patients of DFMC has been controversial. To evaluate and compare morphological changes of temporomandibular joint (TMJ) after open and closed treatments for DFMC, a sheep model of a type B DFMC was created by osteotomy. Eight sheep models of type B DFMC were randomly divided into 2 groups to receive closed treatment (Group 1) and open reduction and internal fixation (ORIF, Group 2), respectively, and morphological changes of TMJ were scored according to the radiological and anatomical criteria of scoring and compared between the 2 groups. Compared with Group 1 animals treated by the closed method, Group 2 animals treated with ORIF received significantly lower scores for morphological changes 12 weeks after treatment. We conclude that ORIF is more efficient than the closed functional treatment in restoring morphology of TMJ to treat type B DFMC.
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, 145, Changlexi Street, Xi'an, Shannxi 710032, China.
authors.forename: Fan-Wen
authors.initials: FW
authors.lastname: Meng
authors.forename: Kai-Jin
authors.initials: KJ
authors.lastname: Hu
authors.forename: Liang
authors.initials: L
authors.lastname: Kong
authors.forename: Yan-Tao
authors.initials: YT
authors.lastname: Zhao
authors.forename: Yan-Pu
authors.initials: YP
authors.lastname: Liu
authors.forename: Shu-Xia
authors.initials: SX
authors.lastname: Zhou
mesh_terms: D000328:Adult; D000768:Anesthesia, General; D000818:Animals; D004195:Disease Models, Animal; D005593:Fracture Fixation, Internal / Q000379:methods* / Q000662:veterinary; D006801:Humans; D008297:Male; D008337:Mandibular Fractures / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000473:pathology* / Q000662:veterinary*; D014057:Tomography, X-Ray Computed