91 patients with end-stage knee osteoarthritis were randomized to receive either high-intensity progressive rehabilitation (n=45) or routine rehabilitation (n=46) after total knee arthroplasty. Outcomes of interest were the American Hospital for Special Surgery Knee Score (HSS), patient satisfaction, pain on a Visual Analog Scale (VAS), first time of standing after surgery, 6-minute walk test (6MWT), short-form 36 (SF-36), and length of hospital stay. Outcomes were assessed at 2 weeks, 3 months, and 12 months postoperatively. Overall, the results of the study revealed that the high-intensity progressive rehabilitation group had significantly better HSS scores, lower pain scores, higher patient satisfaction, earlier first standing time, longer walking distances, and shorter hospital stays. These findings suggest that high-intensity progressive rehabilitation is more effective than routine rehabilitation for enhancing recovery after total knee arthroplasty.