Ultrasound-guided superficial serratus plane block in dog cadavers: an anatomical evaluation and volume dispersion study.

Objective: To evaluate the anatomy of the serratus plane in dogs to establish the optimal landmarks for a superficial serratus plane (SSP) block and evaluate ropivacaine-methylene blue solution dispersion with three volumes of injection.

Study Design: Prospective experimental cadaveric study.

Animals: A formaldehyde solution-preserved dog cadaver and 15 frozen/thawed adult dog cadavers.