Removal of the articular fibrous layers with discectomy leads to temporomandibular joint ankylosis.
Journal
Oral surgery, oral medicine, oral pathology and oral radiology
ISSN: 2212-4411
Titre abrégé: Oral Surg Oral Med Oral Pathol Oral Radiol
Pays: United States
ID NLM: 101576782
Informations de publication
Date de publication:
May 2019
May 2019
Historique:
received:
01
07
2018
revised:
14
11
2018
accepted:
04
12
2018
pubmed:
19
3
2019
medline:
17
1
2020
entrez:
19
3
2019
Statut:
ppublish
Résumé
The aim of this study was to investigate whether direct damage of the articular fibrous layers without condylar fracture, combined with discectomy, was enough to induce temporomandibular joint (TMJ) ankylosis. Bilateral TMJ surgery was performed in 8 growing sheep. Disk removal (DR) was performed in the lateral two-thirds on the control side, and disk and articular fibrous layers removal (DFLR) was performed in the lateral two-thirds on the experimental side. Four animals were sacrificed for each side at 1 and 3 months postoperatively. Fibrous ankylosis was achieved on the DFLR side in 2 of 4 sheep and fibro-osseous ankylosis in the other 2 sheep at 1 month after surgery. Fibro-osseous ankylosis developed on the DFLR side in 4 sheep at 3 months postoperatively. On the DR side, pathologic characteristics of TMJ osteoarthritis could be seen; however, no evidence of ankylosis was observed. The scores of TMJ ankylosis for the DR side were significantly lower than those for the DFLR side at different time points (P < .05). This study demonstrated that removal of articular fibrous layers combined with discectomy can lead to traumatic TMJ ankylosis.
Identifiants
pubmed: 30879912
pii: S2212-4403(18)31298-7
doi: 10.1016/j.oooo.2018.12.002
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
372-380Informations de copyright
Copyright © 2018 Elsevier Inc. All rights reserved.