Table 3. Improvement in mean modified Harris Hip Scores for Groups 1 and 2.

Time from surgery	Mean mHHS Group 1	Mean mHHS Group 2	p value
6 weeks	2 (−6 to 45)	13 (−3 to 51)	0.014
6 months	8 (−4 to 43)	14 (−2 to 47)	0.56
1 year	12 (−1 to 20)	9 (0 to 13)	0.18
2 years	13 (0–23)	25 (3 to 54)	0.63

Range in improvement of mHHS is shown in brackets, negative scores denote a drop in mHHS. mHHS; Modified Harris Hip Score.