Table 3.

Comparison of range of motion between UKA and TKA Group

ROM°		UKA	TKA	P value	Cohen's d*
pre-op	Extension	− 3.8 ± 5.3	− 8.2 ± 8.1	0.002	0.57
	Flexion	138.5 ± 13.6	124.3 ± 19.9	< 0.001	0.74
post-op	Extension	0.8 ± 2.5	− 0.5 ± 2.1	0.52	–
	Flexion	133.9 ± 9.2	118.4 ± 15.0	< 0.001	1.08

*Cohen’s d: Effect size (0.20 = small, 050 = medium, 0.80 = large)