Morphological characteristics of rabbits’ carpal tunnel: Evaluation of its potential for carpal tunnel research

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Δημοσιευμένα: Oct 25, 2024
DOI: https://doi.org/10.12681/jhvms.37030
F Turker Yavas
Department of Anatomy, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
I Dabanoglu
Department of Anatomy, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
Περίληψη

This study aimed to define the main anatomic components and describe the normal size and form of the carpal tunnel in rabbits using imaging techniques.  It was also aimed to evaluate the potential of rabbits as an animal model for carpal tunnel research. The forelimbs of eight adult New Zealand rabbits were investigated using histology, magnetic resonance, and computed tomography. Two cadavers were used for anatomical dissection to support the findings. The carpal tunnel was examined at proximal and distal levels, and it was found that the flexor retinaculum is two-layered in rabbits. Both vascular nerve bundles, including the median nerve and the ramus palmaris of the ulnar nerve, were within two layers of it and passed through the carpal tunnel. The deep digital flexor, superficial digital flexor, and radial carpal flexor tendons were observed within the carpal tunnel. The flexor pollicis longus tendon is not found in rabbits. The area of the carpal tunnel narrowed towards the distal end in three methods, and its depth decreased in CT and MRI. The length of the accessory carpal bone determined this depth. The study found that rabbits' carpal tunnels are morphologically similar to those of humans compared to dogs. This situation is thought to pave the way for more accurate approaches to carpal tunnel research in rabbits.

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