Table 5 Multiple logistic regression model for risk factors of aseptic loosening

Age at operation

0.89 (0.72–1.10)

0.25

Sex (woman)

 < 0.001 (N.A.)

0.99

Operation side (right knee)

4.50 (0.34–59.8)

0.25

BMI

0.94 (0.70–1.26)

0.69

Preoperative knee extension

0.79 (0.59–1.06)

0.11

Preoperative knee flexion

0.92 (0.83–1.03)

0.15

Preoperative femorotibial angle

0.91 (0.64–1.31)

0.61

Bone resection (measured technique)

0.49 (0.02–13.6)

0.62

Operation time

1.00 (0.91–1.11)

0.96

Postoperative prosthetic alignments

 α

0.91 (0.44–1.85)

0.79

 β

0.77 (0.34–1.55)

0.47

 δ

0.93 (0.54–1.57)

0.78

 γ

1.05 (0.98–1.12)

0.16