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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