Three weeks after knee replacement surgery marks a key point in recovery, transitioning from initial healing to active rehabilitation. Understanding what to expect at this stage helps manage expectations and guide your recovery.
Physical Recovery at Three Weeks
At three weeks post-surgery, pain generally decreases, though some discomfort remains, especially with activity or at day’s end. Swelling is common, persisting for weeks or months, typically peaking in the first few days before subsiding.
Regaining knee range of motion is a focus, aiming for at least 100 degrees of flexion (bending) and full extension (straightening) by weeks two to three. This range aids daily activities. Though quadriceps strength may temporarily decrease, rehabilitation exercises begin early to rebuild it.
Navigating Daily Activities
By three weeks post-knee replacement, many can walk with reduced assistance, possibly using a cane or no device. Movement is encouraged multiple times daily. Gradually increasing walking duration is important for recovery.
Navigating stairs is possible, though it may still be challenging, requiring approximately 80-90 degrees of knee flexion. Incisions can get wet in the shower about one week post-surgery if no drainage is present. Avoid submerging the incision in baths or pools for at least four weeks. Assistive devices like sock aids or grab bars simplify dressing and showering.
Driving readiness varies, but guidance suggests waiting at least six weeks for total knee replacement. Returning to work or household tasks is feasible, though heavy lifting should be avoided for up to three months.
Managing Post-Surgical Care
Pain management involves prescribed and over-the-counter medications, with stronger pain relievers often tapered down. Blood thinners may still be prescribed to prevent clots. Taking pain medication 30-45 minutes before physical therapy helps manage discomfort during exercises.
Controlling residual swelling is important for comfort and healing. Regular application of ice, especially after physical activity, and elevating the leg above heart level reduces fluid accumulation. Compression stockings further aid swelling management and circulation.
Proper incision care includes keeping the area clean and dry, inspecting it daily for any changes, and avoiding scratching to prevent infection. Loose clothing can also help prevent irritation around the incision site.
Recognizing When to Seek Medical Advice
While some pain, swelling, and warmth are expected, certain symptoms warrant immediate medical attention. Report a sudden, severe pain increase, especially if it doesn’t improve with rest, ice, or elevation. Concerning signs around the incision include new or worsening redness, tenderness, excessive warmth, pus, or unusual drainage. Any foul wound smell requires an immediate call to your surgeon.
A fever (100.4°F/37.8°C or higher) or chills could indicate infection. Calf or leg symptoms like increased pain, tenderness, swelling, warmth, or redness may signal a deep vein thrombosis (DVT), a blood clot. Sudden shortness of breath, chest pain worsening with deep breathing, or a rapid heart rate could indicate a pulmonary embolism (PE), a blood clot in the lungs.