Table 4. Adjunctive analgesic utilization by type of procedure during 24-hour postoperative period, n (%).

Adjunctive analgesic	Hip replacement (n = 89)	Knee replacement (n = 87)	P
Oral acetaminophen	49 (55.1)	66 (75.9)	.004
Celecoxib	23 (25.8)	55 (63.2)	<.001
Bupivacaine	42 (47.2)	9 (10.3)	<.001
Ropivacaine	2 (2.2)	72 (82.8)	<.001
Gabapentin or pregabalin	20 (22.5)	54 (62.1)	<.001
NSAIDs (oral or IV)	5 (5.6)	2 (2.3)	.444
Tramadol	1 (1.1)	3 (3.4)	.365

Note: IV = intravenous; NSAIDs = nonsteroidal anti-inflammatory drugs (nonselective agents only).