Effect of partial immobilization on reconstruction of ankylosis of the temporomandibular joint with an autogenous costochondral graft:an experimental study in sheep

The purpose of this study was to show the effect of partial immobilization of a costochondral graft reconstruction of an ankylosed temporomandibular joint (TMJ) in five adult sheep. Ankylosis was induced in all right TMJs. At three months, a graft was inserted and partially immobilized. Three months...

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Bibliographic Details
Published in:British journal of oral & maxillofacial surgery 2001-06, Vol.39 (3), p.196-203
Main Authors: Matsuura, H., Miyamoto, H., Ishimaru, J.-I., Kurita, K., Goss, A.N.
Format: Article
Language:English
Subjects:
Analysis of Variance
Animals
Ankylosis - surgery
Arthroplasty - methods
Biological and medical sciences
Bone Transplantation - methods
Cartilage - transplantation
Dentistry
Facial bones, jaws, teeth, parodontium: diseases, semeiology
Head and neck surgery. Maxillofacial surgery. Dental surgery. Orthodontics
Immobilization - adverse effects
Jaw Fixation Techniques - adverse effects
Maxillofacial surgery. Dental surgery. Orthodontics
Medical sciences
Non tumoral diseases
Oral Surgical Procedures - methods
Otorhinolaryngology. Stomatology
Range of Motion, Articular
Reconstructive Surgical Procedures - methods
Sheep
Statistics, Nonparametric
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Temporomandibular Joint Disorders - surgery
Treatment Failure
Weight Loss
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Summary:The purpose of this study was to show the effect of partial immobilization of a costochondral graft reconstruction of an ankylosed temporomandibular joint (TMJ) in five adult sheep. Ankylosis was induced in all right TMJs. At three months, a graft was inserted and partially immobilized. Three months after the second operation, four sheep were killed by an overdose with pentothal. One sheep was killed at one month because of infection. Functionally, the body weight, which decreases with ankylosis, did not recover after insertion of the graft and the range of jaw movements got worse. Histologically, the grafts were well attached to the mandibular rami in three of four joints. In one joint, the graft showed signs of resorption and a foreign body reaction. We conclude that, if the reconstructed joint is partially immobilized, then there will be a degree of reankylosis. There was also a high failure rate.
ISSN:0266-4356
1532-1940
DOI:10.1054/bjom.2001.0623