Table 1.

Brief summary of participants

	Men (n = 20)	Women (n = 166)
Age (years)	73.6 ± 4.7	71.1 ± 7.8
Height (cm)	156.0 ± 10.6*	149.3 ± 7.3*
BW (kg)	60.8 ± 6.9	60.5 ± 11.0
BMI (kg/m2)	25.2 ± 3.1	27.0 ± 4.3
Preoperative ROM (°)	118.2 ± 12.7	101.4 ± 20.4*
Post-operative ROM (°)	118.0 ± 12.4	110.9 ± 19.3
Preoperative FTA (°)	183.1 ± 5.6	182.3 ± 6.9
Post-operative FTA (°)	174.8 ± 2.2	174.7 ± 2.4

All values were mean ± standard deviations. Differences between men and women were compared by Mann–Whitney U test

BW body weight, BMI body mass index, ROM range of motion, FTA femorotibial angle

*A p value below 0.05 was considered significant