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Type: Journal article
Title: Short-term effect of the use of a frozen-stored disc allograft for repair of the osteoarthritic sheep temporomandibular joint: a preliminary report
Author: Ogi, N.
Kurita, K.
Ishimaru, J.
Goss, A.
Citation: Journal of Oral and Maxillofacial Surgery, 1999; 57(2):139-144
Issue Date: 1999
ISSN: 0278-2391
Abstract: PURPOSE:The purpose of this experimental study was to evaluate the initial effect of a frozen-stored disc allograft on the osteoarthritic sheep temporomandibular joint (TMJ). MATERIALS AND METHODS:Bilateral osteoarthritis was induced in the TMJ of four sheep. Three months later, unilateral discectomy and frozen-stored disc allograft replacement were performed. The donor disc had been obtained from a healthy animal at killing. The disc was stored in a deep freezer at -70 degrees C for 1 month and thawed just before grafting. The contralateral joints were undisturbed and served as a control at 3 months. At 6 months after the initial procedure, 3 months after the repair, the four sheep were killed. RESULTS:All four grafted discs were perforated and displaced. In the repaired joints, the condylar articular surface was partly denuded in some areas, and part of the surface showed fibrous repair. The control joints showed osteoarthritic changes. CONCLUSION:Frozen-stored disc allograft is not a satisfactory interpositional material in the osteoarthritic sheep TMJ.
Keywords: Mandibular Condyle; Temporal Bone; Animals; Sheep; Temporomandibular Joint Disorders; Osteoarthritis; Disease Models, Animal; Fibrosis; Postoperative Complications; Range of Motion, Articular; Cryopreservation; Transplantation, Homologous; Follow-Up Studies; Wound Healing; Temporomandibular Joint Disc; Joint Dislocations
RMID: 0030002978
DOI: 10.1016/S0278-2391(99)90227-6
Appears in Collections:Dentistry publications

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