Femoral and sciatic nerve blockade of the pelvic limb with and without obturator nerve block for tibial plateau levelling osteotomy surgery in dogs.

Objective: To determine the effect of blocking the obturator nerve in addition to performing femoral nerve and sciatic nerve blocks on intraoperative nociception in dogs undergoing unilateral tibial plateau levelling osteotomy (TPLO) surgery.

Study Design: Prospective, blinded, randomized, placebo-controlled, clinical comparison.

Animals: A total of 88 client-owned dogs undergoing unilateral TPLO surgery (100 procedures).