Ice pack showdown: can a cooling cuff beat the classic bag of ice after knee surgery?

This study tests whether a special cooling cuff works better than traditional ice packs for reducing swelling and pain after total knee replacement. About 102 adults having their first knee replacement will be split into two groups: one gets the cuff, the other gets ice packs. The main goal is to see which method leads to less swelling and lower pain scores in the weeks after surgery.