1. Guidelines for the management of postoperative pain after total knee arthroplasty;Knee Society;Knee Surg Relat Res,2012
2. Postoperative pain management after total knee arthroplasty in elderly patients: treatment options;CJL;Drugs Aging,2014
3. [3] Parvizi J, Porat M, Gandhi K, et al. Postoperative pain management techniques in hip and knee arthroplasty. Instr Course Lect 2009;58:769-79.
4. Reduction of postoperative mortality and morbidity with epidural or spinal anaesthesia: results from overview of randomised trials;Rodgers;Br Med J,2000
5. [5] Frassanito L, Vergari A, Zanghi F, et al. Post-operative analgesia following total knee arthroplasty: comparison of low-dose intrathecal morphine and single shot ultrasound-guided femoral nerve block: a randomized, single-blinded, controlled study. Eur Rev Med Pharmacol Sci 2010;14(7):589-96.