Knee replacement is one of the most successful surgeries in medicine, with success rates over 95%.

However, like any major surgery, complications can occur. Patients often ask: Can knee replacement fail?

The answer is yes, but it is rare. Understanding why failure happens and the warning signs can help you protect your new knee.

---

What Does "Failure" Mean?

A knee replacement is considered to have "failed" if it no longer functions properly and requires a second surgery (revision) to fix it.

This doesn't always mean a catastrophe. Often, it is a gradual process that can be managed if caught early.

---

Top Causes of Knee Replacement Failure

1. Aseptic Loosening (The Most Common Cause)

Over many years, the bond between the implant and the bone can weaken. This isn't due to infection (hence "aseptic") but often due to microscopic wear particles causing bone loss.

• Result: The implant becomes loose and wobbles, causing pain.

2. Infection

Bacteria can infect the artificial joint immediately after surgery or even years later (spreading from a dental infection or UTI).

• Warning Signs: Redness, warmth, swelling, fever, or persistent pain even at rest.
• Action: Seek medical attention immediately. Early infections can sometimes be washed out; late infections often require changing the implant.

3. Instability

If the soft tissues (ligaments) around the knee are not balanced correctly during surgery, the knee may feel like it is "giving way" or buckling.

• Prevention: This is where robotic knee replacement excels, ensuring perfect ligament balance.

4. Fractures

A fall or severe trauma can break the bone around the implant (periprosthetic fracture), requiring surgical fixation.

---

Signs Your Knee Replacement Might Be Failing

If you have had a pain-free knee for years and suddenly notice these symptoms, see your surgeon:

1. Start-up pain: Pain when standing up from a chair.
2. Swelling: New swelling that doesn't go away with rest.
3. Instability: A feeling that the knee is shifting or unsafe.
4. Change in shape: The leg looking crooked.

---

How to Prevent Failure

You can reduce the risk of failure significantly:

• Choose an expert surgeon: Surgical technique is the #1 factor in longevity.
• Antibiotic cover: Take antibiotics before major dental work to prevent bacteria from entering the bloodstream.
• Stay active but smart: Avoid high-impact sports like football or heavy jogging.
• Watch your weight: Protect the bond between bone and implant.

---

FAQs: Knee Failure

Can a failed knee replacement be fixed?

Yes. Revision knee replacement surgery can repair failing implants and restore function. It is a specialized procedure that Dr. Abhijit Kale performs regularly.

Is failure painful?

Usually, yes. Pain is the main symptom of loosening or infection. However, some loosening can be painless initially, which is why routine X-rays are important.

---

Takeaway

While knee replacement failure is possible, it is the exception, not the rule. Most patients enjoy a lifetime of pain-free mobility.

By choosing robotic precision and following post-op care guidelines, you minimise the risks.

👉 Concerned about your knee implant? Book a check-up with Dr. Abhijit Kale for peace of mind.