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Table 6 Hydros-TA vs. Hydros: Observed mean reduction in WOMAC A (Pain) score*

From: Safety and performance of Hydros and Hydros-TA for knee osteoarthritis: a prospective, multicenter, randomized, double-blind feasibility trial

Time point

Hydros n = 32

Hydros-TA n = 34

Difference

p-value

 

Mean reduction (mm) from baseline [LSMeans(SE)]

Estimated between group difference [LSMeans(SE)]

 

Baseline

68.1

69.4

NA

NA

2 weeks

−23.3 (5.6)

−35.6 (5.2)

−12.4

0.04

6 weeks

−32.4 (5.6)

−33.4 (5.2)

−1.1

0.86

13 weeks

−33.9 (5.6)

−33.3 (5.2)

0.6

0.93

26 weeks

−32.4 (5.6)

−35.2 (5.3)

−2.8

0.65

Overall

−30.5 (5.1)

−34.4 (4.7)

−3.9

0.45

  1. *For intent-to-treat population observed at landmark time points.