Anesthesia and postoperative analgesia after intra-articular injection of warmed versus room-temperature levobupivacaine: a double-blind randomized trial.

Purpose: This prospective, randomized, blinded study was designed to compare the effects of warmed versus room-temperature levobupivacaine in patients undergoing knee arthroscopy and partial meniscectomy.

Methods: Patients were randomly allocated into 2 groups of 16 patients each. In all patients the 2 portal sites were infiltrated with 10 mL of room-temperature mepivacaine (20 mg/mL).