Revision Knee Replacement
It is performed when the initial knee prosthesis fails, whether due to wear, chronic infections, or implant instability. The procedure involves removing the old prosthesis and replacing it with a new one using specialized components. It requires high surgical precision and expertise in handling weak or deformed bone.
Case Definition
Revision knee replacement, or re-operation of the knee prosthesis, is performed when a previous knee implant fails due to wear of its components, chronic infections, or instability within the bone. This surgery is more complex than the primary procedure, as it involves removing the old prosthesis, addressing any damage to the surrounding bone or tissues, and implanting a new prosthesis with a specialized design to ensure high stability.
Symptoms:
- Return of knee pain after a period of relief following the first surgery
- Inability to walk or move as before
- Feeling of joint instability or looseness
- Recurring swelling or infections around the joint
- Difficulty performing daily activities that were possible after the first procedure
Diagnosis:
- Clinical examination to assess joint stability and range of motion
- X-rays to determine the extent of prosthesis wear or displacement
- Blood tests to detect chronic infections (CRP – ESR)
- In some cases: aspiration of joint fluid for bacterial analysis
- CT or MRI if there is bone loss or complex issues
Treatment Methods:
- If the cause is a superficial infection detected early, it can sometimes be treated without removing the prosthesis
- If the prosthesis has completely failed, the old knee implant is removed, the knee and surrounding bones are thoroughly cleaned, and a specialized prosthesis is implanted for re-stabilization, using bone grafts or medical cement as needed
When is surgery necessary?
- When the previous knee prosthesis fails functionally or mechanically
- In the case of deep infections unresponsive to medication
- When joint instability affects daily movement and quality of life
- In case of dislocation or deterioration of the previous prosthesis components
Patient Education After Revision Knee Surgery:
- Revision surgery requires a longer recovery period compared to the first surgery
- It is recommended to avoid putting excessive weight on the knee in the first few weeks
- Physical therapy is essential but must be performed under close supervision
- Adherence to prescribed medications to prevent new infections is crucial
- Temporary walking aids such as crutches or a walker may be needed
Frequently Asked Questions About Revision Knee Replacement
We fully understand the importance of having all the necessary information to make informed decisions about your health. That’s why we have compiled the most frequently asked questions about joint replacement surgery and provided clear and reliable answers. We hope this section helps you better understand the procedure.
The surgery is more complex, but when successful, the patient can regain a good level of mobility and function.
There is no fixed number, but with each surgery, the amount of remaining bone decreases. Therefore, it is preferable to delay revision as much as possible while maintaining regular follow-up.
Yes, by avoiding excessive strain, attending regular follow-ups, and adhering to post-surgery instructions.
It varies depending on the case, but generally, mobility improves compared to what it was before the revision surgery.
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