Table 2 Intermediate-Term and Long-Term Outcomes of IntraarticularInjection of the Knee
From: The highly accurate anteriolateral portal for injecting the knee
| Â | Lateral Midpatellar Portal | Modified Anteriolateral Portal | Â | Â | Â |
|---|---|---|---|---|---|
Number of Subjects | 40 | 43 | Percent Difference | 95% Confidence Interval | P Value |
Pain at Outcome (2 weeks) (VAS) | 2.6 ± 2.8 cm | 1.7 ± 2.3 cm | -35% | -78% to +9% | 0.11 |
Reduction in Pain from Baseline (VAS) | 4.4 ± 3.4 cm | 5.5 ± 3.1 cm | +25% | -7% to +57% | 0.13 |
Responders (VAS < 2 cm) | 45% (18/40) | 56% (24/43) | +24 | -23% to +68% | 0.33 |
Non-Responders (VAS ≥ 2 cm) | 55% (22/40) | 44% (19/43) | -20% | -56% to +19% | 0.33 |
Pain at Outcome (6 months) (VAS) | 4.9 ± 3.1 cm | 4.8 ± 3.2 cm | -2% | -30% to +26% | 0.89 |
Duration of Therapeutic Effect | 3.9 ± 2.4 months | 4.1 ± 2.2 months | +5% | -21% to +31% | 0.69 |
Time to Next Procedure (reinjection or referral to surgery) | 7.3 ± 3.3 months | 7.7 ± 3.7 months | +6% | -16% to +27% | 0.71 |