Table 1.

General information of patients.

Group	n	Age	Sex	Body mass index	Hip-knee-ankle angle	Follow-up duration
		(years, $\overline{\text{x}}$±s)	(n, Male/Female)	(㎏/㎡,$\overline{\text{x}}$±s)	(degrees, $\overline{\text{x}}$±s)	(Months, $\overline{\text{x}}$±s)
FB group	15	69 ​± ​5.3	6/9	24.8 ​± ​2.8	176.7 ​± ​1.2	7.5 ​± ​0.5
MB group	15	67 ​± ​4.2	7/8	26.8 ​± ​1.6	177.3 ​± ​1.5	7.7 ​± ​0.6
p value		0.014	0.393	0.002	0.107	0.582

FB ​= ​fixed-bearing prosthesis group; MB ​= ​mobile-bearing prosthesis group.