Table 3 Mean values of patient characteristics and T-test comparison of non-THA and THA group

Number of patients

79

61 (77.2 %)

18 (22.8 %)

Male/female

49/30

38/23

11/7

Age at surgery in years

(SD)

48.6 (±3.3)

48.2 (±6.2)

49.9 (±5.6)

0.278

K-L grade

1.45 (±0.8)

1.27 (±0.8)

2.12 (±0.8)

<0.001^*

JS in mm

3.3 (±1.0)

3.5 (±0.8)

2.3 (1.1)

<0.001^*

Alpha angle (°)

67 (±13)

67.5 (±12.6)

64.7 (±15)

0.541

LCE angle (°)

32 (±7.5)

32 (±7.3)

31.5 (±8.7)

0.77

CCD angle (°)

130.9 (±5.4)

131 (±5.6)

130.8 (±5.1)

0.92

AI (°)

6.6 (±5.6)

6.3 (±5.6)

7.4 (±5.5)

0.511