Sanel, S., Arpaz, O., Unay, K., Turkmen, I., Simsek, S., Ugutmen, E. Comparison of intra-articular bupivacaine-morphine with bupivacaine-tenoxicam combinations on post-operative analgesia in patients with arthroscopic meniscectomy: a prospective, randomised study. Int Orthop 2016; 3: 601-5