Table 2.

Differences between the pre- and post-operative Harris hip scores (HHSs).

HHS	Mean	±SD	Mean Diff.	p-value
Pre	37.8	14.9
After 6 months	83.1	12.4	−45.4	<0.001
After 1 year	92.7	3.3	−53.9	<0.001
After 2 years	95.1	3.7	−59.1	<0.001