How long does total knee replacement take to work for knee osteoarthritis?

The replacement changes the worn joint surfaces, but the operation also temporarily irritates skin, muscle and other tissues around the knee. Early stiffness and swelling can make the knee feel less capable even as the arthritic pain improves. Bending, sitting down, standing up and climbing stairs may each recover at a different pace. A warm or tight feeling after exercise can occur during healing; a trend toward easier movement matters more than a single difficult day.

Use the prescribed walking aid and perform the exercises your physiotherapist gives you, including gentle bending, straightening and thigh-muscle work. Take short walks and rest between activities rather than testing the knee with a sudden increase. Elevate the leg or use cold therapy only as instructed. Keep the wound protected, take medicines according to the discharge plan, and arrange help with meals, bathing and stairs during the early period. Your surgeon should guide return to driving, work and sport.

Contact the surgical team for increasing redness, drainage, fever, worsening swelling or pain that is not settling. Get urgent help for sudden shortness of breath, chest pain, a markedly swollen calf, or a foot that becomes cold, pale or numb. A fall followed by severe pain or inability to bear weight also needs prompt assessment.

Ask what knee bend and straightening goals are suitable for you, how long to use a frame or crutches, and how to manage swelling after exercise. Clarify when you may drive, work, kneel, use stairs independently and return to preferred activities.