What to Do About Blister-Like Swelling After Knee Surgery? - Orthopedics

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After knee surgery, experiencing blister-like swelling can be concerning, especially when it affects your ability to bend the knee. Here’s a comprehensive approach to understanding and managing this issue, along with some insights into the healing process.


Understanding the Symptoms
1. Swelling and Blister-Like Appearance: The swelling you describe, which resembles blisters or burns, is likely due to inflammation and fluid accumulation in the knee joint and surrounding tissues. This is a common response after surgery, especially if there has been trauma to the area, such as from a fall or excessive movement during rehabilitation.

2. Pain During Flexion: Pain when bending the knee can be attributed to several factors, including:
- Scar Tissue Formation: After surgery, scar tissue can develop, leading to adhesions that restrict movement and cause pain.

- Inflammation: Post-surgical inflammation can exacerbate pain and swelling, particularly when attempting to flex the knee.

- Muscle Weakness: If the quadriceps and hamstring muscles are weak due to disuse or atrophy, they may not support the knee adequately during movement, leading to discomfort.


Management Strategies
1. Rest and Elevation: It’s crucial to rest your knee and elevate it to reduce swelling. Keeping your leg elevated above the level of your heart can help decrease fluid accumulation.

2. Ice Therapy: Applying ice packs to the swollen area can help reduce inflammation and numb the pain. Use ice for 15-20 minutes every couple of hours, especially after physical therapy sessions.

3. Gentle Range of Motion Exercises: While it’s important to work on bending your knee, be cautious not to overdo it. Gentle, controlled movements can help maintain flexibility without exacerbating swelling. Consider working with a physical therapist who can guide you through appropriate exercises.

4. Compression: Using a compression bandage or knee sleeve can help manage swelling. Ensure it’s snug but not too tight, as excessive pressure can impede circulation.

5. Medication: Over-the-counter anti-inflammatory medications, such as ibuprofen or naproxen, can help manage pain and reduce swelling. Always consult with your physician before starting any medication.

6. Physical Therapy: Continuing with physical therapy is essential. A therapist can provide tailored exercises to improve strength and flexibility while monitoring your progress and adjusting your regimen as needed.


When to Seek Medical Attention
If the swelling persists, worsens, or is accompanied by other symptoms such as fever, increased redness, or warmth around the knee, it’s important to consult your surgeon or healthcare provider. These could be signs of infection or other complications that require immediate attention.


Long-Term Considerations
As you recover, it’s essential to be patient. The healing process can take time, and it’s normal to experience fluctuations in pain and swelling. Focus on gradual improvements in your range of motion and strength. If you find that certain activities consistently lead to increased swelling or pain, it may be beneficial to modify those activities or discuss them with your physical therapist.

In conclusion, managing blister-like swelling after knee surgery involves a combination of rest, ice, elevation, gentle exercises, and possibly medication. Always keep open communication with your healthcare team to ensure a safe and effective recovery process. With time and appropriate care, you should see improvements in your knee function and a reduction in swelling.