Your knee can stay warm for several months, often improving gradually over 6 to 12 months, but sometimes even longer (up to a year or more), as increased blood flow for healing causes warmth, which is normal unless accompanied by fever or significant redness, which could signal infection. Mild warmth is expected after surgery, a sign of normal healing, but it will slowly subside as inflammation reduces with continued rehabilitation and icing.
A mildly warm knee can be completely normal even three months out. This is part of your body's natural healing response and tends to fade with time. However, excessive warmth, redness, or swelling, especially if paired with fever or drainage, could be a sign of infection or inflammation that needs immediate attention.
After recovery, you can engage in various low-impact activities, such as walking, swimming, golfing or biking. But you should avoid higher impact activities, such as jogging, and sports that involve contact or jumping. Talk to your healthcare team about ways to stay active after knee replacement.
Following an exercise regime can also reduce swelling, increase your range of motion and strengthen your body. Knee replacement exercise recovery regimens often include stretching, pumping your muscles, bending your knees and working your quad. One of the most highly recommended exercises is walking.
A warm or hot knee after surgery is a common phenomenon due to the body's natural healing response. Increased blood flow and inflammation contribute to the warmth or heat in the knee.
Seek immediate medical attention if one knee has a change in skin color and feels warm to the touch compared with your other knee. This can be a sign of infection within the joint.
The duration of leg elevation is an important aspect of post-surgery care. For best results, it's recommended to keep the leg elevated for 3-5 days after the surgery, particularly during the initial phase when swelling is more pronounced.
Three weeks after surgery you should be able to walk around for 10 minutes without crutches or a walker. During the fourth week, you are able to restore your normal walking pattern and walk without an assistive device.
The risks of prolonged inactivity after surgery are numerous and can greatly impact your healing process. When you don't move, your muscles weaken. This weakening can result in stiffness, loss of strength, and a decreased range of motion, all of which can prolong your recovery.
Walking after knee replacement
Aside from physiotherapy exercises, walking is one of the most important activities you can do following a knee replacement. It increases mobility while strengthening the muscles around the new joint.
Swelling. Swelling of the knee and leg are normal after a total knee replacement. There are some things that you can do, however, to minimize this problem. Ice the knee frequently for the first two to three weeks after surgery.
You may feel extra pain in specific areas of your knee as you become more mobile and do your exercises at home and then outpatient Physical Therapy. Feelings of tingling, electric zings, burning, and pins and needles are all normal and indicate that your nerves are awakening and healing from the surgery.
Doing Too Much Activity Too Soon
The new joint, while durable, still needs time to settle and bond with surrounding tissues. Overexertion can lead to inflammation, increased pain, or even dislocation of the prosthetic joint. Proper pacing, as guided by your physiotherapist or surgeon, is essential to prevent setbacks.
Here are symptoms that may indicate the presence of a blood clot:
By the three-month mark, most patients can resume regular activities, including walking, standing for prolonged periods, and even jogging. The knee should be more stable and mobile at this point. However, full recovery may take up to a year. By the end of this period, most of the swelling and tenderness should resolve.
In cadaveric studies, Mayo Clinic has found that the standard surgical incision used in total knee arthroplasty almost always severs the infrapatellar saphenous nerve. The severed nerve generally doesn't affect the knee's function.
After a TKA, you can expect approximately six to 10 weeks of Physical Therapy visits, usually two to three times per week.
Walking is an effective low-impact workout, whether you're outside or on a treadmill. Treadmill and outdoor walking offer similar health benefits when the effort is the same. Two 15-minute walks can be just as effective as one 30-minute walk. Walking longer may be better than running shorter for many people.
Typical active recovery activities include walking, swimming, cycling, jogging, yoga, or active stretching (Ortiz et al. 2018). The key is to find an activity that's low-intensity and keeps your heart rate at 30-60% of your maximum heart rate.
Note: Side sleeping is usually an option several weeks into recovery, not immediately after surgery. Always check with your physical therapist or surgeon before trying this position.
Walking is generally considered a beneficial activity for individuals with knee replacements as it helps improve joint mobility, strength, and overall function. However, it is possible to overdo it and potentially cause damage to your knee replacement if you engage in excessive or high-impact activities.
Proper walking is the best way to help your knee recover. At first, you will walk with a walker or crutches. Your surgeon or therapist will tell you how much weight to put on your leg. Stand comfortably and erect with your weight evenly balanced on your walker or crutches.
Tip #1: Avoid Sitting With Your Knee Bent Or Cross-Legged
This can also increase the pressure on your knee joints, which can cause pain and swelling. To give your knees relief, limit the amount of time you spend with your knees bent or crossed. Try to have them straight whenever possible.
The most common cause of sleep disruption is pain. It has been reported that more than half of patients wake up with pain after knee replacement. Many factors can affect the quality of sleep after a major surgery including anesthesia-type, narcotic use and discomfort due to pain or restricted leg movements.
Elevation time varies from patient to patient and procedure to procedure, but for most patients, doctors recommend elevating the feet for between five days and two weeks post-operatively.