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Development of a Pericapsular Knee Desensitization Technique in Dogs: An Anatomical Cadaveric Study
Marta Garbin1, Raiane A Moura2, Yasmim C Souza2
1Department of Clinical Science, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC J2S 8H5, Canada.
Veterinary Sciences
|June 25, 2025
Summary
Ultrasound-guided pericapsular knee desensitization (PKD) is more effective than blind techniques for canine knee pain management. This precision in targeting articular nerve branches improves success rates, offering a foundation for clinical applications.
Area of Science:
- Veterinary Anesthesiology
- Regional Anesthesia
- Musculoskeletal Anatomy
Background:
- Articular pain management is crucial in veterinary medicine.
- Regional anesthesia targeting articular nerve branches shows promise.
- Pericapsular knee desensitization (PKD) is an emerging technique.
Purpose of the Study:
- To develop and compare ultrasound-guided versus blind PKD techniques in canine cadavers.
- To evaluate the success rates and accuracy of dye distribution.
- To characterize relevant articular nerve branches and anatomical landmarks.
Main Methods:
- Gross dissection and ultrasound evaluations in eight canine limbs.
- Randomized injection of dye solution using ultrasound-guided and blind PKD in 20 limbs.
- Dissection and histological assessment of staining accuracy.
Main Results:
- Ultrasound-guided PKD achieved a significantly higher success rate (96.7%) than blind PKD (73.3%; p=0.02).
- Medial articular nerve (MAN) staining was 100% successful with ultrasound guidance versus 50% with blind injection (p=0.03).
- High success rates for lateral and posterior articular nerves, with minimal parent nerve involvement except for the common fibular nerve.
Conclusions:
- Ultrasound-guided PKD is feasible and offers increased precision for canine knee joint desensitization.
- This technique provides a foundation for further clinical evaluation in managing articular pain.
- Accurate identification of articular nerve branches is critical for successful regional anesthesia.
