文章基本信息

标题：Degenerative joint disease in the temporomandibular joint with fibrous ankylosis in a rhesus macaque ( Macaca mulatta )
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作者：Su-Mi Kim ; Chang-Gok Woo ; Jong-Min Kim 等
期刊名称：Laboratory Animal Research
印刷版ISSN：1738-6055
电子版ISSN：2233-7660
出版年度：2020
卷号：36
期号：1
页码：1-5
DOI：10.1186/s42826-020-00052-2
语种：English
出版社：BioMed Central Ltd.
摘要：Ankylosis in the temporomandibular joint (TMJ) is known to have various etiologies in veterinary medicine. We observed a case of fibrous ankylosis of the TMJ in a newly imported rhesus monkey (Macaca mulatta). Moderate to severe attrition was found in the middle labial portion of the left maxillary canine. No tenderness around the jaw was detected in the physical examination. The WBC count, CRP level, rheumatoid factor level, and other parameters were normal. Irregularity in the joint surface was observed in both TMJs in the radiographic and computed tomographic examinations, but the left TMJ presented more severe irregularity. It was determined that the removal of the locked portion of the left canine would alleviate the case of lockjaw and allow intubation with an endotracheal tube. Canine tooth crown reduction was performed for both canine teeth. The mouth opening distance slightly (approximately 5 mm) increased up to 20 mm. We concluded that the attrition of canine teeth was not the reason for lockjaw and ankyloses originating from TMJ disease. Fibrotic synovial tissue and joint surface irregularity were observed by necropsy. The presence of fibrocartilage in most areas of the TMJ was confirmed by histology. The diagnosis was fibrous ankylosis of the TMJ associated with DJD. To the best of our knowledge, this is the first report of degenerative joint disease of the TMJ in a rhesus monkey with fibrous ankylosis of the TMJ.
关键词：Fibrous ankylosis;Degenerative joint disease;Computed tomography;Temporomandibular joint;Rhesus monkey