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Development of a Pericapsular Elbow Desensitization Technique in Dogs-A Canine Cadaveric Study
Diego A Portela1, Raiane A Moura1, Mariana Cavalcanti1
1Department of Comparative, Diagnostic and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL 32608, USA.
Veterinary Sciences
|April 26, 2025
Summary
Ultrasound-guided pericapsular elbow desensitization (PED) in dogs is more successful than blind techniques for canine elbow pain management. This study developed and compared these methods, finding ultrasound guidance superior for targeting specific nerves.
Area of Science:
- Veterinary Anesthesiology
- Pain Management
- Applied Anatomy
Background:
- Peripheral nerve blocks are crucial for pain management in dogs.
- No established technique exists for targeting canine elbow articular nerve branches.
- Pericapsular elbow desensitization (PED) offers potential for elbow pain relief.
Purpose of the Study:
- To develop and compare ultrasound-guided and blind PED techniques in canine cadavers.
- To identify anatomical landmarks for canine elbow nerve blocks.
- To evaluate the success rate of targeting articular nerve branches.
Main Methods:
- Gross and ultrasonographic evaluation of canine elbow anatomy.
- Dye injections followed by dissection and histological analysis in cadavers.
- Comparison of ultrasound-guided versus blind PED techniques.
Main Results:
- Four quadrant injections are necessary to target radial, ulnar, median, and musculocutaneous articular branches.
- Ultrasound-guided PED achieved a significantly higher success rate (77.5%) than blind PED (45%).
- Ultrasound guidance was superior for targeting radial nerve branches (100% vs. 37% cranial, 100% vs. 12.5% caudal).
Conclusions:
- Ultrasound-guided PED is a viable and effective technique for canine elbow pain management.
- This study provides anatomical data and technique validation for future clinical application.
- Further research in live animals is warranted to confirm clinical efficacy.
