The short-term effect of discectomy on osteoarthrotic joints was tested experimentally in sheep. Bilateral temporomandibular joint (TMJ) osteoarthrosis was induced, and at 3 months discectomy was performed on one joint, with the other being left as a control. Neither masticatory nor mouth-opening disturbances had been found after discectomy. The animals were killed at 6 months, and the TMJs were removed, fixed, and assessed radiologically, macroscopically, and histologically. The control joints showed ongoing degenerative changes consistent with previous reports. The discectomy joints showed marked fibrous repair with joint surface remodelling rather than ongoing degeneration. This result is consistent with the clinical findings after discectomy for osteoarthrotic joints.
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http://dx.doi.org/10.1016/s0901-5027(06)80065-2 | DOI Listing |
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
September 1997
Second Department of Oral and Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan.
Unlabelled: The aim of this experimental study is to evaluate the effect of fresh disk allograft on the osteoarthrotic temporomandibular joints in four sheep.
Study Design: 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.
Int J Oral Maxillofac Surg
June 1997
Second Department of Oral and Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan.
The aim of this experimental study was to determine the effect of auricular cartilage graft replacement on the progression of experimentally induced osteoarthrosis in sheep. Bilateral osteoarthrosis was induced in the sheep temporomandibular joint (TMJ). Three months later, discectomy and autogenous auricular cartilage grafting were performed unilaterally.
View Article and Find Full Text PDFSwed Dent J Suppl
December 1997
Department of Oral and Maxillofacial Surgery, Faculty of Odontology, University of Göteborg, Sweden.
The aim of this thesis was to evaluate the indications for and the results of temporomandibular joint (TMJ) surgery in patients with long-standing severe orofacial pain and dysfunction as well as in patients with fractures of the condylar neck. The patients with long-standing pain and dysfunction had had symptoms for a mean time of 4 years, had been treated conservatively for a mean time of 2.5 years, and had undergone numerous conservative treatment methods without improvement except for a minor increase in mouth opening capacity.
View Article and Find Full Text PDFInt J Oral Maxillofac Surg
August 1996
Second Department of Oral and Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan.
The short-term effect of discectomy on osteoarthrotic joints was tested experimentally in sheep. Bilateral temporomandibular joint (TMJ) osteoarthrosis was induced, and at 3 months discectomy was performed on one joint, with the other being left as a control. Neither masticatory nor mouth-opening disturbances had been found after discectomy.
View Article and Find Full Text PDFCranio
January 1996
Dept. of Oral and Maxillofacial Surgery, Mölndals Hospital, Sweden.
The purpose of the study was to evaluate the radiographic appearance in the temporomandibular joint after diskectomy in patients refractory to conservative treatment. The diskectomies were performed in patients in which the common diagnosis were internal derangement or symptoms of osteoarthrosis. Postoperative radiographs were taken in 25 patients after 1-17 yrs and compared with the preoperative from both the operated and the nonoperated joints.
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