Table 5.

Multiple regression analysis for preoperative factors affecting change of the standing JLCA from preoperative to postoperative 1 month

Independent variable	OWHTO				CWHTO
	Unstandardized coefficient		Standardized coefficient	P	Unstandardized coefficient		Standardized coefficient	P
	Β	SE	β		Β	SE	β
Age	0.014	0.022	0.069	0.522	− 0.001	0.019	− 0.002	0.982
Sex	0.665	0.353	0.170	0.063	0.566	0.433	0.103	0.195
Body mass index	0.068	0.047	0.131	0.148	0.001	0.063	0.001	0.987
Correction angle	− 0.211	0.062	− 0.352	0.001	0.036	0.061	0.050	0.563
Preoperative standing FTA	0.041	0.102	0.050	0.690	− 0.159	0.089	− 0.225	0.078
Preoperative standing JLCA	− 0.504	0.100	− 0.552	< 0.001	− 0.587	0.087	− 0.716	< 0.001
Preoperative MPTA	− 0.084	0.080	− 0.133	0.296	0.149	0.088	0.185	0.095

FTA femorotibial angle, JLCA joint line convergence angle, MPTA medial proximal tibial angle, SE standard error