Shah NA, Jain NP, Panchal KA. Adductor Canal Blockade Following Total Knee Arthroplasty-Continuous or Single Shot Technique? Role in Postoperative Analgesia, Ambulation Ability and Early Functional Recovery: A Randomized Controlled Trial. The Journal of arthroplasty 30(8): 1476-1481, 2015 DOI: 10.1016/j.arth.2015.03.006.