Table 3.

Variables for cases that failed within five years versus those that failed after five years following primary surgery

Variable	Within five years	More than five years	p-value
Age (years)	61.9	60.7	0.187
BMI (kg/m2)	28.2	28.9	0.232
HSS score	53.3	53.9	0.771
Femoro-tibial angle (°)	4.9	4.2	0.771

BMI body mass index, HSS Hospital for Special Surgery