Red Flags After Knee Replacement Surgery: When to Call Your Surgeon
Knee replacement surgery is a common and effective procedure that can significantly reduce pain and improve mobility. While most patients recover well, it is important to recognize symptoms that may indicate a complication. Knowing when to seek medical attention can help ensure a safe recovery and prevent more serious problems.
What Is Normal After Surgery?
Following knee replacement surgery, it is common to experience:
Mild to moderate pain around the knee
Swelling in the knee and lower leg
Bruising around the surgical site
Warmth around the knee
Stiffness, particularly in the morning or after prolonged sitting
These symptoms should gradually improve as healing progresses and rehabilitation continues.
Red Flags That Require Medical Attention
Certain symptoms should not be ignored. If you experience any of the following, contact your surgeon or healthcare provider promptly.
Calf Pain or Pain with Calf Movement
Pain in the calf can sometimes be a sign of a blood clot, also known as deep vein thrombosis (DVT). Be particularly cautious if you notice:
New or increasing calf pain - note this is typically very severe pain
Pain when moving your ankle or stretching your calf
Tenderness when touching the calf
Significant swelling
Redness or unusual warmth in the calf
Blood clots can become serious if left untreated. Contact your surgeon immediately if these symptoms develop.
Severe or Worsening Pain
Some discomfort is expected after surgery, but the pain needs to be manageable.
Seek medical advice if:
Your pain suddenly increases without an obvious reason
Pain is not controlled with prescribed medication
Pain significantly limits your ability to move or participate in rehabilitation
You experience a sharp or intense pain that is different from your usual post-operative discomfort
A sudden increase in pain may indicate an infection, injury, or another complication that requires assessment. Your surgeon can review your case to determine the best way to help.
Fever or Signs of Infection
Infection is one of the most important complications to identify early after knee replacement surgery.
Contact your surgeon if you experience:
A fever above 38°C (100.4°F)
Chills or excessive sweating
Increasing redness around the incision
Drainage or pus from the wound
Increasing pain or swelling around the surgical site
Early treatment is essential to protect both your health and your knee replacement.
Excessive Swelling
Mild swelling is a normal part of recovery. However, excessive or worsening swelling may be a sign of a problem.
Seek medical advice if:
Swelling suddenly increases
One leg becomes significantly more swollen than the other
Swelling is accompanied by calf pain, redness, or warmth
Swelling does not improve with rest, elevation, and ice
Your healthcare team can determine whether further investigation is needed.
Final Thoughts
Most patients recover successfully after knee replacement surgery, but it is important to be aware of warning signs. Calf pain, pain with calf movement, severe pain, fever, and excessive swelling should never be ignored. If you are unsure whether a symptom is normal, it is always best to contact your surgeon or physiotherapist for guidance.
Early recognition and prompt action can help ensure a safer and smoother recovery.
- Liam
Disclaimer:
This content is for educational purposes only and does not replace medical advice. Always follow the guidance of your healthcare provider and exercise within your comfort level.
