Review
The impact of genetic variation on sensitivity to opioid analgesics in patients with postoperative pain: a systematic review and meta-analysis.
Pain Physician. 2015 Mar 1; 18 (2): 131-52.
Randomized Controlled Trial
Adding gabapentin to a multimodal regimen does not reduce acute pain, opioid consumption or chronic pain after total hip arthroplasty.
Acta Anaesthesiol Scand. 2009 Sep 1;53(8):1073-83.
Meta Analysis
Local infiltration analgesia following total knee arthroplasty: effect on post-operative pain and opioid consumption--a meta-analysis.
Knee Surg Sports Traumatol Arthrosc. 2015 Jul 1; 23 (7): 1956-63.