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. 2006 Apr 19;2006(2):CD005321. doi: 10.1002/14651858.CD005321.pub2

Comparison 34. Orthovisc versus placebo.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 WOMAC pain (5 to 25 Likert) 3   Mean Difference (IV, Fixed, 95% CI) Subtotals only
1.1 1 to 4 weeks post‐injection 3 110 Mean Difference (IV, Fixed, 95% CI) ‐2.40 [‐2.85, ‐1.95]
1.2 5 to 13 weeks post‐injection 2 69 Mean Difference (IV, Fixed, 95% CI) ‐5.40 [‐6.92, ‐3.89]
1.3 14 to 26 weeks post‐injection 2 69 Mean Difference (IV, Fixed, 95% CI) ‐4.63 [‐6.08, ‐3.18]
1.4 45 to 52 weeks post‐injection 1 40 Mean Difference (IV, Fixed, 95% CI) ‐5.30 [‐7.02, ‐3.58]
2 WOMAC pain (number of patients who improved) 1   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
3 WOMAC pain (number of patients who achieved greater than 5 unit improvement (relative to baseline score)) 1   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
3.1 14 to 26 weeks post‐injection 1 135 Risk Ratio (M‐H, Fixed, 95% CI) 1.42 [1.00, 2.02]
4 Number of patients with a 20% improvement from baseline in WOMAC pain score 2   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
4.1 5 to 13 weeks post‐injection 2 394 Risk Ratio (M‐H, Random, 95% CI) 1.15 [0.91, 1.44]
4.2 14 to 26 weeks post‐injection 2 394 Risk Ratio (M‐H, Random, 95% CI) 1.09 [0.94, 1.26]
5 Number of patients with a 40% improvement from baseline in WOMAC pain score 2   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
5.1 5 to 13 weeks post‐injection 2 394 Risk Ratio (M‐H, Fixed, 95% CI) 1.30 [1.08, 1.57]
5.2 14 to 26 weeks post‐injection 2 394 Risk Ratio (M‐H, Fixed, 95% CI) 1.22 [1.00, 1.49]
6 Number of patients with a 50% improvement from baseline in WOMAC pain score 2   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
6.1 5 to 13 weeks post‐injection 2 394 Risk Ratio (M‐H, Fixed, 95% CI) 1.22 [0.99, 1.50]
6.2 14 to 26 weeks post‐injection 2 394 Risk Ratio (M‐H, Fixed, 95% CI) 1.22 [0.97, 1.54]
7 WOMAC pain on standing (0 to 100 mm VAS; change from baseline) 2   Mean Difference (IV, Fixed, 95% CI) Subtotals only
7.1 5 to 13 weeks post‐injection 2 294 Mean Difference (IV, Fixed, 95% CI) ‐2.80 [‐9.76, 4.15]
7.2 14 to 26 weeks post‐injection 2 294 Mean Difference (IV, Fixed, 95% CI) ‐2.92 [‐10.22, 4.37]
8 WOMAC physical function (17 to 85 Likert) 3   Mean Difference (IV, Fixed, 95% CI) Subtotals only
8.1 1 to 4 weeks post‐injection 3 110 Mean Difference (IV, Fixed, 95% CI) ‐7.20 [‐8.84, ‐5.56]
8.2 5 to 13 weeks post‐injection 2 69 Mean Difference (IV, Fixed, 95% CI) ‐12.87 [‐18.60, ‐7.14]
8.3 14 to 26 weeks post‐injection 2 69 Mean Difference (IV, Fixed, 95% CI) ‐10.88 [‐16.97, ‐4.79]
8.4 45 to 52 weeks post‐injection 1 40 Mean Difference (IV, Fixed, 95% CI) ‐7.10 [‐15.42, 1.22]
9 Range of motion: flexion (degrees) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
9.1 1 to 4 weeks post‐injection 1 41 Mean Difference (IV, Fixed, 95% CI) 4.0 [2.02, 5.98]
10 25 metre walking time (sec) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
10.1 1 to 4 weeks post‐injection 1 41 Mean Difference (IV, Fixed, 95% CI) 0.40 [‐0.40, 1.20]
11 Knee circumference (mm) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
11.1 1 to 4 weeks post‐injection 1 41 Mean Difference (IV, Fixed, 95% CI) ‐0.30 [‐0.73, 0.13]
12 WOMAC stiffness (2 to 10 Likert) 2   Mean Difference (IV, Random, 95% CI) Subtotals only
12.1 1 to 4 weeks post‐injection 2 70 Mean Difference (IV, Random, 95% CI) ‐0.93 [‐2.89, 1.02]
12.2 5 to 13 weeks post‐injection 1 29 Mean Difference (IV, Random, 95% CI) ‐1.5 [‐2.84, ‐0.16]
12.3 14 to 26 weeks post‐injection 1 29 Mean Difference (IV, Random, 95% CI) ‐1.5 [‐2.71, ‐0.29]
13 WOMAC total score (0 to 100 mm VAS; change from baseline) 2   Mean Difference (IV, Fixed, 95% CI) Subtotals only
13.1 5 to 13 weeks post‐injection 2 336 Mean Difference (IV, Fixed, 95% CI) ‐7.80 [‐34.64, 19.04]
13.2 14 to 26 weeks post‐injection 2 336 Mean Difference (IV, Fixed, 95% CI) ‐4.38 [‐31.35, 22.60]
14 Patient global assessment (0 to 100 mm VAS; where 100 is worst severity) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
14.1 1 to 4 weeks post‐injection 1 29 Mean Difference (IV, Fixed, 95% CI) ‐20.0 [‐33.22, ‐6.78]
14.2 5 to 13 weeks post‐injection 1 29 Mean Difference (IV, Fixed, 95% CI) ‐20.0 [‐30.63, ‐9.37]
14.3 14 to 26 weeks post‐injection 1 29 Mean Difference (IV, Fixed, 95% CI) 0.0 [‐12.77, 12.77]
15 Patient global assessment (0 to 100 mm VAS; change from baseline) 2   Mean Difference (IV, Fixed, 95% CI) Subtotals only
15.1 5 to 13 weeks post‐injection 2 336 Mean Difference (IV, Fixed, 95% CI) ‐3.81 [‐10.11, 2.49]
15.2 14 to 26 weeks post‐injection 2 336 Mean Difference (IV, Fixed, 95% CI) ‐3.67 [‐10.07, 2.73]
16 Patient global assessment (number patients rating treatment as effective or very effective) 1   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
16.1 5 to 13 weeks post‐injection 1 30 Risk Ratio (M‐H, Fixed, 95% CI) 2.2 [1.01, 4.79]
17 Physician global assessment (0 to 100 mm VAS; where 100 is worst severity) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
17.1 1 to 4 weeks post‐injection 1 29 Mean Difference (IV, Fixed, 95% CI) 0.0 [‐17.62, 17.62]
17.2 5 to 13 weeks post‐injection 1 29 Mean Difference (IV, Fixed, 95% CI) 0.0 [‐16.67, 16.67]
17.3 14 to 26 weeks post‐injection 1 29 Mean Difference (IV, Fixed, 95% CI) ‐10.0 [‐26.50, 6.50]
18 Physician global assessment (0 to 100 VAS; change from baseline) 2   Mean Difference (IV, Fixed, 95% CI) Subtotals only
18.1 5 to 13 weeks post‐injection 2 336 Mean Difference (IV, Fixed, 95% CI) ‐4.22 [‐9.48, 1.04]
18.2 14 to 26 weeks post‐injection 2 336 Mean Difference (IV, Fixed, 95% CI) ‐4.08 [‐9.28, 1.12]
19 Synovial fluid effusion volume (ml) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
19.1 1 to 4 weeks post‐injection 1 41 Mean Difference (IV, Fixed, 95% CI) ‐4.0 [‐5.66, ‐2.34]
20 Interleukin 6 level in the synovial fluid (pg/ml) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
20.1 1 to 4 weeks post‐injection 1 41 Mean Difference (IV, Fixed, 95% CI) ‐11.90 [‐14.09, ‐9.71]
21 Interleukin 8 level in the synovial fluid (pg/ml) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
21.1 1 to 4 weeks post‐injection 1 43 Mean Difference (IV, Fixed, 95% CI) ‐4.80 [‐6.54, ‐3.06]
22 Tumor necrosis factor alpha levels in synovial fluid 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
22.1 1 to 4 weeks post‐injection 1 41 Mean Difference (IV, Fixed, 95% CI) ‐9.30 [‐21.53, 2.93]
23 Safety: total withdrawals overall 5   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
24 Safety: withdrawals due to lack of efficacy 4   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
25 Safety: number of patients with treatment related adverse events 1   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
26 Safety: number of patients withdrawn due to noncompliance 1   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
27 Safety: number of patients with reported musculoskeletal adverse events 3   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
28 Safety: number of patients with general body adverse events 3   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
29 Safety: number of patients with local skin rash 3   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
30 Safety: number patients with gastrointestinal complaints 3   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
31 Safety: number of patients with reported respiratory adverse events 3   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
32 Safety: number of patients with nervous system adverse events 3   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
33 Safety: number of patients with urinary adverse events 1   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
34 Safety: number of patients withdrawn due to local adverse events 1   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only