at the limit of significanceP = 0.05
In NTK group, significant changes were found in PT, SS and pelvic obliquity between pre-operatively and immediate post-operatively, independently of age ( P < 0.05), although the change in PT was at the limit of significance in young adults ( P = 0.05), and all these changes were normalized to pre-operative values at 1-year follow-up ( P > 0.05).