The authors regret to have included an incorrect panel of Fig. 1 to the manuscript. In Fig. 1, the bottom right panel (pelvis, transversal plane) has an incorrect colour setting. Line colour and line type should represent measurement time (pre-operative, 3 months post-operative, and 12 months post-operative) and walking speed (0.45, 1.35, and 2.22 m/s) respectively. Unfortunately, for the bottom right panel these settings were accidently interchanged. The results section was written with the use of a correct figure and thus the conclusion of the study remains the same. The correct version of Fig. 1 is attached to this corrigendum. [figure-presented] The authors would like to apologise for any inconvenience caused.