Temporomandibular joint ankylosis in cats and dogs

C. P. H. J. Maas; L. F. H. Theyse

doi:10.1160/VCOT-06-08-0062

Veterinary and Comparative Orthopaedics and Traumatology, Inhaltsverzeichnis

Vet Comp Orthop Traumatol 2007; 20(03): 192-197
DOI: 10.1160/VCOT-06-08-0062

Clinical Communication

Schattauer GmbH

Temporomandibular joint ankylosis in cats and dogs

A report of 10 cases

C. P. H. J. Maas

¹Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, University of Utrecht, The Netherlands

,

L. F. H. Theyse

¹Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, University of Utrecht, The Netherlands

› Institutsangaben

Abstract

Summary

Temporomandibular joint (TMJ) ankylosis is characterized by difficulty or inability to open the mouth. The ankylosis may be articular (‘true’) or extra-articular (‘false’). Clinical signs, radiographic studies, treatment and follow-up are presented in a retrospective study involving five cats and five dogs. The findings were compared with TMJ ankylosis in humans. CT imaging with three-dimensional reconstruction proved to be of great value in determining the extent of the abnormalities and helped with preoperative planning. Articular TMJ ankylosis occurred in six animals and extra-articular TMJ ankylosis was found in the other four cases. In three cats and in three dogs, the TMJ ankylosis was trauma related; the remaining patients were diagnosed with a tumour. Resection of ankylosing tissue in false ankylosis or gap arthroplasty in true ankylosis was successful in all of the trauma induced cases. In the two cats, with tumour related ankylosis, the ankylosis was caused by an osteoma and resection had a good prognosis, whereas the two dogs had to be euthanatized.

Keywords

Temporomandibular joint ankylosis - diagnostic imaging - surgical treatment - cat - dog

Volltext

Referenzen

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