Table 2 Comparison of radiologic results and polyethylene liner thickness between the MAKO and conventional groups

Preoperative (degree)

 HKA axis

8.9 ± 3.9

9.0 ± 2.8

n.s

 Posterior slope

7.4 ± 1.9

7.5 ± 2.0

n.s

Postoperative (degree)

 HKA axis

1.9 ± 1.6

2.8 ± 1.5

 < 0.05

 α

91.2 ± 0.8

91.8 ± 1.2

 < 0.05

 β

90.8 ± 0.5

91.1 ± 0.8

 < 0.05

 δ

90.7 ± 0.6

91.7 ± 1.0

 < 0.05

Postoperative outliers, n (%)

 HKA axis

28 (18.2)

55 (35.7)

 < 0.05

 α

5 (3.2)

22 (14.3)

 < 0.05

 β

0 (0)

2 (1.3)

n.s

 δ

0 (0)

14 (9.1)

 < 0.05

Polyethylene liner thickness, n (%)

n.s

 9 mm

84 (54.5)

76 (49.3)

 11 mm

55 (35.7)

54 (35.1)

 13 mm

15 (9.8)

20 (13.0)

 16 mm

0 (0)

4 (2.6)