Decision-making factors and their thresholds for total knee arthroplasty in lateral tibiofemoral osteoarthritis patients: a retrospective cohort study

Table 4 Multivariate logistic regression analysis by backward stepwise method

Variables	β coefficient	Adjusted ORs (95% CI)	p-Value
Injection history	1.274	3.58 (0.36–35.24)	0.275
Ipsilateral side of lower extremity
Pain VAS	0.479	1.61 (1.14–2.28)	0.007^*
Ahlbäck grade (mild versus severe)	− 0.516	0.60 (0.03–13.38)	0.745
HKA (°)	−0.097	0.91 (0.65–1.27)	0.568
JLCA (°)	0.062	1.06 (0.74–1.54)	0.744
TF subluxation at the lateral cortex in Rosenberg view (%)	0.022	1.02 (0.78–1.33)	0.872
TF subluxation at the center in knee AP (%)	0.127	1.14 (1.01–1.27)	0.031^*
TTA (°)	0.133	1.14 (0.99–1.32)	0.072
Contralateral side of lower extremity
Ahlbäck grade (mild versus severe)	0.996	2.71 (0.28–26.17)	0.390

*Statistically significant
ORs odds ratio, CI confidence interval, VAS visual analog scale, HKA hip–knee–ankle angle, JLCA joint line convergence angle, AP anteroposterior, TTA tibiotalar angle

ISSN: 2234-2451