Complications
One subject in each group had to undergo knee manipulation under anaesthesia between six weeks and three months after surgery.
Secondary analyses on the subgroup of the patients having less than 68° (0–50 percentile) of active RoM at discharge showed that these patients benefited more from CPM treatment. They improved 11° more in active RoM(22° versus 11° in the PT group) during the active treatment fortnight. However, these differences in range of motion benefit had also faded at six-week follow-up.