Postoperative video
On the morning of the first postoperative day, the study participants from the video group were shown a 4 K video, which was recorded directly postoperatively. The video lasted 60 s and showed the repeated passive extension and flexion movement of the patient's own operated knee joint while still on the operating table with full extension and flexion of 125° (Fig. Parts of the video shown to the patients demonstrating the full ROM of the artificial joint