Table 5 Potential risk factors for developing postoperative PI-LL mismatch ≥ 10°(Multivariate logistic regression analysis)

Age ≥ 75 years

0.766

0.214

12.812

 < 0.001

2.151

1.414–3.272

Severe osteoporosis

1.038

0.329

9.954

0.002

2.824

1.481–5.381

Severe facet joint OA

1.507

0.426

12.514

 < 0.001

4.513

1.958–10.402

Dynamic changes in LL < 10°

1.639

0.412

15.826

 < 0.001

5.150

2.296–11.548

Constant

-1.921

0.437

19.323

 < 0.001

0.146