Description of a new approach for great auricular and auriculotemporal nerve blocks: A cadaveric study in foxes and dogs

Veterinary Medicine and Science
Thaleia-Rengina StathopoulouJaime Viscasillas

Abstract

Otitis externa is a painful condition that may require surgical intervention in dogs. A balanced analgesia protocol should combine systemic analgesic agents and local anaesthesia techniques. The aim of the study was to find anatomical landmarks for the great auricular and the auriculotemporal nerves that transmit nociceptive information from the ear pinna and to develop the optimal technique for a nerve block. The study consisted of two phases. In phase I, one fox cadaver was used for dissection and anatomical localization of the auricular nerves to derive landmarks for needle insertion. Eight fox cadavers were subsequently used to evaluate the accuracy of the technique by injecting methylene blue bilaterally. In phase II findings from phase I were applied in four Beagle canine cadavers. A block was deemed successful if more than 0.6 cm of the nerve's length was stained. Successful great auricular nerve block was achieved by inserting the needle superficially along the wing of the atlas with the needle pointing towards the jugular groove. For the auriculotemporal nerve block the needle was inserted perpendicular to the skin at the caudal lateral border of the zygomatic arch, close to the temporal process. The overall success ra...Continue Reading

References

May 1, 1989·Anesthesia and Analgesia·S A RaymondG R Strichartz
Sep 1, 1996·Veterinary Surgery : VS·J L BubackR W Green
Aug 28, 1998·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·B L SchmidtG Kearns
Aug 27, 2005·Journal of the American Veterinary Medical Association·MaryAnn G RadlinskyRosalind Pineda
Sep 11, 2012·Anatomical Sciences Education·Darrell J R Evans
Mar 29, 2013·Journal of the American Animal Hospital Association·Rebecca E SpivackGary C Lantz

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Citations

Sep 14, 2019·Veterinary Dermatology·Elizabeth A Layne, Cristina de Miguel Garcia
Jan 23, 2020·Veterinary Medicine and Science·Tamara Grubb, Heidi Lobprise
Feb 8, 2020·Veterinary Anaesthesia and Analgesia·Cristina de Miguel GarciaGrayson Doss

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Methods Mentioned

BETA
dissection

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