Table I.

All included studies

Study	Type	Group 1	N	Group 2	N	Outcomes
Morgenthaler et al. [15]	RCT	Intra-articular bupivacaine	13	Placebo	13	VAS and rescue medication
Baker et al. [16]	RCT	Portal infiltration	33	Intra-articular infiltration	40	VAS and rescue medication
Ward et al. [6]	RCT	Femoral nerve block	20	General anesthesia	20	PACU time, nausea, operation time
YaDeau et al. [17]	RCT	Lumbar plexus nerve block	41	General anesthesia	41	VAS, rescue medication, nausea/vomiting, hospital stay
Zhang et al. [8]	RCT	200mg Celecoxib	27	Placebo	26	VAS and rescue medication
Krych et al. [18]	Prospective series	Fascia iliaca block	30	No control group		VAS, nausea, opioid use, patient satisfaction
Potter et al. [19]	Prospective series	Fascia iliaca block	53	General anesthesia	54	VAS, PACU time, opioid use
Dold et al. [20]	Retrospective review	Femoral nerve block	56	General anesthesia	40	VAS, PACU time, opioid use
Baker et al. 2011 [11]	Retrospective chart review	Bupivacaine intra-articular	85	No control group		VAS, opiate requirement
Schroeder et al. [21]	Retrospective review	Lumbar plexus block	118	General anesthesia	118	Peak PACU pain, PACU time, escape medication