Analysis of risk factors for revision in distal femoral fractures treated with lateral locking plate: a retrospective study in Chinese patients

Table 2 Logistic regression model for predicting revision in patients with distal femoral fractures

Predictors	Regression coefficient	Standard error	Wald χ²	P value	OR	OR 95% CI
Age (X1)	0.096	0.036	7.130	0.008	1.100	1.026–1.180
Type of fracture (X2)			6.750	0.034
Type of fracture (A3)	2.419	0.854	6.323	0.012	8.572	1.606–45.750
Type of fracture (PF)	2.205	1.024	4.639	0.031	9.073	1.220–67.506
Quality of reduction (X3)	2.036	0.733	7.713	0.005	7.663	1.821–32.253
R2 (X4)	− 1.127	0.425	7.011	0.008	0.324	0.141–0.746
Constant	− 7.879	2.509	9.861	0.002	0.000	–

PF periprosthetic fracture after total knee arthroplasty, R2 ratio of the length of the plate/fracture area above the condylar
The classification of each factor: fracture type X2:1 = A2/C1/C2 fracture, 2 = A3 fracture, 3 = PF; X3:1 = satisfactory reduction, 2 = poor reduction

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