Table 4 Variability in subjective and objective signs by intervention type

Pain whilst walking (%)

93.2 (82.1-100)

0.06

94.1 (52.9-100)

0.12

Pain at rest (%)

50 (7.1-72.7)

0.23

43.5 (7.7-80.5)

0.40

Ambulating capacity (%)

26.9 (0.0-61.8)

0.50

27.3 (2.1-100)

0.42

Stair climbing (%)

90.9 (69.2-100)

0.10

95.2 (63.8-100)

0.08

Limping (%)

81.8 (26.1-100)

0.34

68.3 (19.1-100)

0.30

Need for walking aids/wheelchair (%)

42.9 (10.0-80.0)

0.31

36.4 (8.3-100)

0.52

Getting up from a chair (%)

64.7 (18.2-100)

0.23

Abduction (≤ 10°) (%)

36.1 (0.0-60.0)

0.38

Adduction (≤ 10°) (%)

60.0 (0.0-100)

0.43

Flexion (≤ 60°) (%)

18.2 (0.0-75.0)

0.62

Extension (≤ 10°) (%)

92.3 (36.2-100)

0.08

Internal rotation (≤ 10°) (%)

85.7 (44.8-100)

0.13

External rotation (≤ 10°) (%)

62.5 (19.3-92.3)

0.15

Trendelenburg (yes) (%)

3.8 (0.0-100)

0.76

Dysmetria (yes) (%)

33.3 (0.0-100)

0.58

Muscle strength (contraction not counteracting gravity)

9.1 (0.0-45.5)

0.52

Active extension (≤ 5°) (%)

77.2 (30.0-100)

0.19

Passive extension (≤ 10°) (%)

92.5 (50.0-100)

0.11

Passive flexion (< 100°) (%)

41.7 (21.3-100)

0.34

Instability degree (> 5°) (%)

20.5 (0.0-100)

0.69