Table 4.

Comparison of knee joint HSS score between the two groups (55–60 years old)

Groups	1 month postop	3 months postop	6 months postop	12 months postop	18 months postop
HTO	79.05 ± 3.01	83.53 ± 4.02	90.16 ± 2.72	92.95 ± 2.25	93.53 ± 3.13
UKA	75.68 ± 2.60	81.11 ± 3.75	88.89 ± 2.13	91.16 ± 3.10	92.84 ± 2.69
t value	3.427	1.861	3.274	1.797	0.770
P value	0.003	0.004	0.079	0.089	0.451