Table 4 Pre- and postoperative alignment of the lower extremity and component alignment of the ZUK in the first and last postoperative anterior-posterior (ap) and lateral radiographs

Mechanical axis

0.98 (0.94–0.97)

−1.4 (1.9, −5.8–4.9), n = 118

−0.3 (1.8, −6.0–3.9), n = 119

<0.001

110

A

0.45 (−0.11–0.82)

−4.0 (4.9, −18.6 –9.2), n = 131

−4.8 (4.9, −19.5–9.3), n = 131

0.002

131

B

0.65 (0.13–0.90)

-2.2, (3.3, −9.6–3.9), n = 122

−1.8 (3.2, −9.5–5.8), n = 122

0.115

114

C

0.96 (0.84–0.99)

1.0 (5.3, −12.3–15.5), n = 132

0.9 (5.2, −12.3–14.7), n = 132

0.667

132

D

0.95 (0.83–0.99)

3.3 (2.9, −2.9–9.6), n = 131

3.5 (2.8, −3.8–9.9), n = 132

0.374

131