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Table 1 Short-Term Outcomes for Intraarticular Injection of the Knee

From: The highly accurate anteriolateral portal for injecting 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