How to know when knee replacement is necessary

It may be time to have knee replacement surgery if you have: Severe knee pain that limits your everyday activities. Moderate or severe knee pain while resting, day or night. Long-lasting knee inflammation and swelling that doesn’t get better with rest or medications.

Much of the success of knee replacement surgery for knee osteoarthritis depends on timing, but a team at Northwestern University’s Feinberg School of Medicine in Chicago found that 90% of patients who could benefit from the procedure waited too long to have it, while about 25% of patients who didn’t need it underwent

Knee replacement surgery isn’t typically recommended if you’re younger than 50. While recommendations for surgery are based on a patient’s pain and disability, most patients who undergo a total knee replacement are age 50-80.

Why you shouldn’t skip physical therapy after knee surgery

Supporting muscles and soft tissue can begin to atrophy due to nonuse and swelling. Increased strain can be put on the knee from improper movement. Range of motion can be diminished. The healing process can be slowed down due to lack of blood flow to the area.

3 weeks after surgery: At this point, you should be able to walk for more than 10 minutes at a time, without a walker or crutches. Your physical therapist may challenge you to go on longer walks and stop using an assistive device like a cane.

Guidelines after Total Knee Replacement surgery

By the time you have left the hospital/rehab facility, you should be able to get in–out of bed by yourself, walk with the cane, and go up and down stairs. The biggest challenge in the early recovery of a TKR (up to 3 months postoperative) is the regaining of knee motion.

​​Movements to Avoid After Surgery

Make sure you don’t bend it in an uncontrolled way. Don’t cross your legs. Don’t sleep with a pillow under your knee. It can cause a permanent bend in your knee or put pressure on blood vessels in your leg.

Arthrofibrosis is also known as stiff knee syndrome. The condition sometimes occurs in a knee joint that has recently been injured. It can also occur after surgery on the knee, such as a knee replacement. Over time, scar tissue builds up inside the knee, causing the knee joint to shrink and tighten.

You may need new habits for your knee.

Even if you‘re able to return to full normal after your surgery, you‘ll need to mind your artificial knee for the rest of your life. Avoid lifting anything more than 20 pounds. That can stress the joint too much. Don’t jerk the leg with the implant.

Over time, implants can loosen and detach from the bone, causing pain. Plastic components of the artificial knee slowly wear out, creating debris that can cause inflammation. The wear and tear can cause the knee to break.

The best sleeping position just after your surgery is sleeping on your back. You should make sure that your operative leg stays as straight as possible to avoid hypertension of the knee and keep proper blood flow to the surgery site. If you are sleeping on your back, put the pillow under your calf and knee.

You will probably be able to walk on your own in 4 to 8 weeks. You will need to do months of physical rehabilitation (rehab) after a knee replacement. Rehab will help you strengthen the muscles of the knee and help you regain movement.