Table 2.

Comparison of VAS Pain Scores Between Groups by Postoperative Time Point ^a

	VAS Pain Score
Postoperative Time Point	Mean ± SD	Range	95% CI	P
0-30 minutes				.3443
Intra-articular	6.000 ± 2.828	0.0-10.0	3.64 to 8.36
Extra-articular	3.750 ± 3.500	0.0-8.0	-1.82 to 9.32
1-2 hours				>.9999
Intra-articular	8.000 ± 1.414	7.0-9.0	-4.71 to 20.71
Extra-articular	5.000 ± 7.071	0.0-10.0	-58.53 to 68.53
2-4 hours				.6004
Intra-articular	3.250 ± 3.279	0.0-10.0	1.17 to 5.33
Extra-articular	2.938 ± 3.415	0.0-10.0	1.12 to 4.76
24 hours				.3339
Intra-articular	4.333 ± 2.267	0.0-7.5	2.81 to 5.86
Extra-articular	5.211 ± 1.537	2.0-7.0	4.36 to 6.06
48 hours				.4509
Intra-articular	4.500 ± 1.871	2.0-7.0	2.18 to 6.82
Extra-articular	5.250 ± 1.389	3.0-7.0	4.09 to 6.41

^a VAS, visual analog scale (0 = no pain, 10 = most severe pain).