Randomized Controlled Trial
Intraarticular tramadol plus pericapsular incisional bupivacaine provides better analgesia than intraarticular plus pericapsular incisional bupivacaine after outpatient arthroscopic partial meniscectomy.
Knee Surg Sports Traumatol Arthrosc. 2007 May 1;15(5):564-8.
Randomized Controlled Trial
Analgesic effect of intra-articular tramadol compared with morphine after arthroscopic knee surgery.
Arthroscopy. 2005 Sep 1;21(9):1060-5.
Randomized Controlled Trial
Intraarticular tramadol-bupivacaine combination prolongs the duration of postoperative analgesia after outpatient arthroscopic knee surgery.
Anesth. Analg. 2008 Jul 1;107(1):292-9.