Biomechanical properties of the atlantoaxial joint with naturally-occurring instability in a toy breed dog. A comparative descriptive cadaveric study

Forterre, Franck; Precht, Maria Christina; Riedinger, Benoit Vincent Nicolas; Bürki, Alexander (2015). Biomechanical properties of the atlantoaxial joint with naturally-occurring instability in a toy breed dog. A comparative descriptive cadaveric study. Veterinary and comparative orthopaedics and traumatology, 28(5), pp. 355-358. Schattauer 10.3415/VCOT-15-01-0005

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The biomechanical properties of the atlanto-axial joint in a young Yorkshire Terrier dog with spontaneous atlantoaxial instability were compared to those of another young toy breed dog with a healthy atlantoaxial joint. The range-of-motion was increased in flexion and lateral bending in the unstable joint. In addition, lateral bending led to torsion and dorsal dislocation of the axis within the atlas. On gross examination, the dens ligaments were absent and a longitudinal tear of the tectorial membrane was observed. These findings suggest that both ventral and lateral flexion may lead to severe spinal cord compression, and that the tectorial membrane may play a protective role in some cases of atlantoaxial instability.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Research Foci > NeuroCenter
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Small Animal Clinic > Small Animal Clinic, Surgery
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > DKV - Clinical Radiology
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Small Animal Clinic

UniBE Contributor:

Forterre, Franck; Precht, Maria Christina; Riedinger, Benoit Vincent Nicolas and Bürki, Alexander

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

ISSN:

0932-0814

Publisher:

Schattauer

Language:

English

Submitter:

Simone Forterre

Date Deposited:

08 Feb 2016 10:26

Last Modified:

13 Oct 2016 07:27

Publisher DOI:

10.3415/VCOT-15-01-0005

PubMed ID:

26195254

Uncontrolled Keywords:

dog, biomechanics, Atlantoaxial instability

BORIS DOI:

10.7892/boris.75138

URI:

https://boris.unibe.ch/id/eprint/75138

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