Short-term effect of fresh disk allograft on the osteoarthrotic sheep temporomandibular joint.
The aim of this experimental study is to evaluate the effect of fresh disk allograft on the osteoarthrotic temporomandibular joints in four sheep.


METHODS
Bilateral osteoarthrosis was induced in the sheep's temporomandibular joint. Three months later, unilateral diskectomy and fresh disk allograft repair were performed, with the contralateral joint being left as a control. At 6 months after the initial procedure, 3 months after the repair, the four sheep were sacrificed.


RESULTS
It was found that the operated joint was fibrously repaired without ankylosis, whereas the control joint showed progressive disease. One grafted disk survived, but the other three were perforated and displaced.


CONCLUSIONS
Fresh disk allograft does temper progression of the disease in the early stages.
Ogi
N
N
Second Department of Oral and Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan.
Kurita
K
K
Handa
Y
Y
Goss
A N
AN
D000818:Animals; D000844:Ankylosis / Q000473:pathology; D002358:Cartilage, Articular / Q000637:transplantation*; D018450:Disease Progression; D005355:Fibrosis; D005500:Follow-Up Studies; D006085:Graft Survival; D004204:Joint Dislocations / Q000209:etiology; D008335:Mandibular Condyle / Q000473:pathology; D010003:Osteoarthritis / Q000473:pathology / Q000503:physiopathology / Q000601:surgery*; D010026:Osteosclerosis / Q000473:pathology; D011183:Postoperative Complications; D016059:Range of Motion, Articular; D012756:Sheep; D013701:Temporal Bone / Q000473:pathology; D019224:Temporomandibular Joint Disc / Q000601:surgery*; D013705:Temporomandibular Joint Disorders / Q000209:etiology / Q000473:pathology / Q000503:physiopathology / Q000601:surgery*; D014184:Transplantation, Homologous; D014945:Wound Healing