Table 6 VAS pain scores

Pain on walking 0-100 mm

Qvistgaard et al

(101 patients) [41]

Baseline

45

45

45

Pain (14 days)

33

37

46

Pain (1 month)

30

36

40

Pain (3 months)

36

36

39

Pain at rest 0-100 mm

Baseline

25

25

25

Pain (14 days)

22

23

29

Pain (1 month)

22

26

25

Pain (3 months)

23

27

28

0–20 Pain scale

CS

Placebo

Kullenberg et al. (80 patients) [47]

Pain (Baseline)

12.2 ± 2.2

12.0 ± 1.0

Pain (3 weeks)

3.8 ± 2.6

12.4 ± 1.8

Pain (3 months)

7.9 ± 3.9

12.4 ± 1.8

Group 0—CS

Group 1—CS + HA

Group 2—CS + HA

Group 3—CS + HA

De Rezende et al. (82 patients) [50]

Pain (Baseline)

63.8 (21.5)

68.2 (21.8)

55.8 (31.4)

69.2 (20.9)

Pain (1 month)

35.5 (33.4)

31.9 (22.0)

28.4 (27.2)

44.0 (34.3)

Pain (3 months)

44.3 (31.7)

43.3 (21.9)

40.1 (29.3)

43.0 (29.7)

Pain (6 months)

46.2 (28.0)

49.9 (30.0)

37.6 (28.9)

43.0 (31.4)

Pain (12 months)

40.3 (34.4)

48.4 (27.0)

40.8 (27.8)

46.6 (27.7)

CS

Ketorolac

Jurgensmeier et al. (120 patients) [51]

Pain (Baseline)

5.42

5.27

Pain (3 months)

4.31

4.19