Table 1.

Short-Term Outcomes for Intraarticular Injection of the Knee

	Lateral Midpatellar Portal	Modified Anteriolateral Portal
Number of Subjects	40	43	Percent Difference	95% Confidence Interval	P Value
Pre-Procedure Baseline Pain (VAS)	8.1 ± 2.0 cm	7.6 ± 2.2 cm	-6%	-18% to +5%	0.28
Needle Introduction Pain (VAS)	4.6 ± 3.1 cm	4.8 ± 3.2 cm	+4%	-26% to +34%	0.77
Significant Needle Introduction Pain (VAS ≥ 5 cm)	48% (19/40)	44% (19/43)	-6%	-49% to +37%	0.74
Injection Pain (VAS)	2.8 ± 2.8 cm	2.9 ± 3.4 cm	+4%	-45% to +53%	0.92
Significant Injection Pain (VAS ≥ 5 cm)	23% (9/40)	21% (9/43)	+2%	-71% to +86%	0.90