Revision Knee Replacement in Turkey

Revision knee replacement (revision knee arthroplasty) is surgery on a knee implant that was fitted earlier. One or more parts of the artificial joint are replaced, and sometimes all of it. Here, “revision” means redoing an implant that was previously fitted. It is not the same as a corrective osteotomy, which treats knee deformity.

Surgeons turn to this operation when an artificial joint stops working or is damaged. Causes include a loose or worn implant, infection, or instability. In some cases non-surgical measures are tried first. In others, such as infection or a fracture around the implant, revision is often necessary. The surgery aims to relieve pain and improve function.

Your surgeon will then explain what to expect from the surgery and recovery. Revision is usually more complex than the first operation. Eligibility and the plan are decided by the surgeon after examination, imaging and a review of the records of your earlier surgery. It varies from patient to patient, depending on why the implant failed, the condition of the bone and general health.

• Revision is surgery on a knee implant fitted earlier. It may involve part of the joint or all of it.
• Causes include loosening, wear, infection, instability, stiffness and a fracture around the implant.
• For stiffness and instability, non-surgical measures are often tried first. Infection and fractures often require revision.
• Assessment includes examination, imaging and tests. Records of the earlier surgery help with planning.
• Revision is longer and more complex than the first operation, its risks are relatively higher, and the possibility of a further revision exists.
• The decision and the plan rest with the surgeon after assessment.

In this article: what revision means, reasons for it, when it is not the first step, assessment, how it is done, what the evidence says, surgeon experience, risks, recovery and air travel, when to seek medical care, what to bring, questions for your surgeon, cost, the role of O9 Medical, and frequently asked questions.

What is revision knee replacement, and how does it differ from the first operation?

Patient-oriented medical references describe revision as removing some or all of the parts of the original implant and replacing them. It may be limited to one part. It may also involve replacing all the components and rebuilding the bone around the joint. In the research literature, revision also includes replacing only the plastic spacer, or replacing another part of the joint after an earlier partial replacement. To learn about partial replacement, you can read Partial Knee Replacement.

These references describe revision as longer and more complex than the first operation, requiring extensive planning and specialized implants and instruments. The incision may follow the earlier scar but be longer. The surgeon may need specialized implants with longer, thicker stems that fit deeper into the bone. The surgeon may also need metal pieces that make up for missing bone.

The basics of the first knee replacement (types, materials and steps) are covered in our article on Total Knee Replacement Surgery. We do not repeat them here.

Reasons for revision

Implants fail for many reasons. These are the main ones described in patient-oriented medical references:

Loosening and wear

Over time an implant may loosen from the bone, which makes the knee painful. The cause of loosening is not always clear. High-impact activity, excess body weight and wear of the plastic spacer may contribute. Tiny particles from this wear can build up around the joint and be attacked by the immune system. This weakens the bone around the implant and makes it loose or unstable. The long-term risk that revision will be needed is higher in people who had their first replacement at a younger age.

Infection around the artificial joint

Infection may occur while you are in the hospital or after you go home, and it may appear years later. An infected joint may become stiff and painful, and the implant may lose its attachment to the bone. Even if the implant stays fixed, pain, swelling and drainage usually make revision necessary.

Instability

If the ligaments around the knee are damaged or out of balance, the knee may swell repeatedly and feel as though it is “giving way.” If non-surgical measures such as bracing and physical therapy do not work, revision may be needed.

Stiffness

The knee may not give you the range of motion needed for daily activities, often because of excess scar tissue. The surgeon may first perform manipulation under anesthesia to break up the scar tissue. In most cases this improves motion, but the knee sometimes stays stiff. Revision is considered if extensive scar tissue or the position of the implant parts limits motion.

Fracture around the implant

This is a broken bone around the parts of the artificial knee, most often caused by a fall. References say it usually requires revision surgery. The extent of the revision depends on the quality of the remaining bone, the type and location of the fracture, and whether the implant is loose.

Some cases, such as infection and certain fractures, are classed as urgent indications. In elective cases, the decision is discussed between patient and surgeon after the risks, benefits and alternatives have been explained.

When revision is not the first step

Not every problem after knee replacement calls for revision surgery. Medical references state that stiffness may first be treated by manipulating the joint under anesthesia. They state that instability may first be treated with bracing and physical therapy. Revision is considered when these measures do not work. References on knee replacement in general add that physical therapy and exercises may help with problems of movement, pain and stiffness.

A systematic review notes that no studies have compared elective revision for non-infected causes with non-surgical treatment. It also notes that many patients improve with support before they consider revision. So the decision remains a conversation with your surgeon, not one rule that applies to everyone.

How is the patient assessed before revision?

• A thorough medical check-up before surgery, and a specialist assessment if you have chronic heart or kidney disease.
• Imaging: X-rays to look for loosening or a change in the position of the implant parts. A bone scan, MRI or CT scan may be requested to find out why the knee has failed and to assess the bone.
• If infection is suspected: blood tests, and removal and testing of joint fluid.
• Detailed history: when infection is suspected, the information needed includes the type of implant, the date it was fitted, and earlier operations on the joint. This is why records of the earlier surgery help with planning.

How is revision performed?

Surgery usually follows the line of the earlier incision, which may be made longer to allow the old implant parts to be removed. The surgeon examines the soft tissues and the implant parts to see which have worn, loosened or shifted. The old implant is removed carefully to preserve as much bone as possible. Old cement is removed if present, which takes time and adds to the complexity of the surgery. If a lot of bone is missing, metal pieces may be added to make up for it. In rare cases a bone graft from your own bone or a donor is used. The specialized implant is then fitted, damaged soft tissues are repaired, and the motion of the joint is tested.

Infection: one stage or two?

Patient-oriented medical references describe two approaches to treating infection. The first is washing out the bacteria and exchanging the plastic spacer while leaving the metal parts in place. The second is staged surgery, in which the whole implant is removed, and it comes in two types. In a two-stage operation, the implant is removed and a temporary antibiotic cement spacer is placed. A new implant is fitted after the infection has been treated. In a one-stage operation, the implant is removed and a new one is fitted in the same operation. This is the less common option. The choice depends on the type of bacteria, how long the infection has been present, its severity and the patient’s preference. The references note that removing the implant gives a higher chance of curing the infection but is associated with a longer recovery.

The evidence comparing one stage with two stages is mixed:

• A systematic review of observational studies, with no randomized trials, found that one stage may be about as effective as two in generally unselected patients. It added a caution because there were few one-stage studies.
• A later analysis of comparison studies found relatively higher success in eradicating infection with two stages. Its authors stress the need to be aware of selection bias when interpreting studies, and call for future randomized trials.
• Older guidelines on prosthetic joint infection said two stages are common in the United States. They said one stage is little used and is considered in specific circumstances on weak evidence, and they focused on the hip joint in this regard. They also note that many of their recommendations rest on expert opinion because data are limited.

So it is not possible to say that either approach suits everyone. The surgeon decides according to your case, in consultation with an infectious diseases specialist when needed. Some cases may need a two-stage operation when the implant has to be removed, and cases of bone loss may need metal pieces to make up for it. Ask your surgeon whether your case needs special planning.

What the evidence says about outcomes and the chance of a further revision

Patient-oriented medical references say most people who have revision surgery have good long-term outcomes, including pain relief and greater stability and function. They also note that it is not always possible to achieve complete pain relief and full return of function. Some patients may still have pain or stiffness.

A systematic review gathered uncontrolled observational studies on elective revision for non-infected causes. It found large improvements in function and quality of life in the studies that measured them. It also found that early complications are common, with widely varying rates, and suggested the variation reflects differences between patients and procedures. It stressed the need for stronger evidence.

National registry data on knee replacements show that the chance of needing a further revision exists. They also show that each later revision lasts relatively less time than the one before. The risk was relatively higher in men and in younger patients.

These findings need to be read with caution:

• Many studies are observational or small and often lack a comparison group, so comparing them with the first operation precisely is difficult.
• Outcomes vary with the reason for revision, the severity of the case, the type of procedure and the characteristics of the patients.
• The absence of a statistically significant difference between two approaches does not prove they are equivalent.

Surgeon experience and caseload: what does the evidence say?

A recent systematic review concludes that confidence in any relationship between a surgeon’s or hospital’s caseload and outcomes after revision is very low. It finds that results are inconsistent and that the studies are observational and varied. It includes a low-confidence signal that higher hospital caseload may be associated with relatively fewer complications after surgery. For surgeon caseload, no clear association was seen with patients’ own assessment of their outcomes, although certainty about this is very low. The review stresses the need for stronger studies.

So asking your surgeon about experience with revision is a reasonable question, but it is not decisive evidence of the quality of outcomes.

Risks and complications

Patient-oriented medical references state that revision, because it is longer and more complex than the first operation, carries a greater risk of complications. They also state that the risk of infection afterward is slightly higher. Possible risks include:

• Poor wound healing.
• Reduced range of motion or stiffness in the knee.
• Infection in the wound or in the new implant.
• Bleeding.
• Blood clots in the legs, which may travel to the lungs.
• A broken bone during surgery.
• Damage to nerves or blood vessels.
• Medical problems such as heart attack, lung complications and stroke.

Rates of early complications vary widely between studies. Your surgeon will explain each risk and take measures to reduce it.

Recovery

Some medical references address revision specifically, and others address recovery after knee replacement in general. We make clear below which applies to each point.

What references on revision specifically say:

• Recovery after revision is usually slower than after the first operation, but the type of care is largely similar.
• You may stay in the hospital, or you may go home the same day. This is discussed with your surgeon before surgery.
• The surgeon prescribes a combination of pain medicines to reduce the need for opioids. They should be used as directed by your doctor.
• A physical therapist gives you exercises to strengthen your leg and restore motion.
• You may need a walker, cane or crutches at first, until you can walk without help.
• You may need help at home with cooking, shopping, bathing and laundry. You may also need to stay in a nursing or rehabilitation facility after leaving the hospital, depending on your condition and who can help you at home.
• Avoid soaking the wound in water until it has healed and dried.
• Keep moving and exercising at home, and make sure with your therapist that you can straighten your leg and bend your knee.

What references on knee replacement in general say (details may differ after revision, so ask your surgeon):

• Full recovery can take a long time and varies with age, general health and your activity level before surgery.
• Raising and icing the leg is advised to reduce swelling and pain, and the wound should be kept clean and covered as your surgeon directs.
• Compression stockings are usually used to reduce the risk of clots.
• Do not kneel on the new knee until your doctor says you can, and avoid standing for long periods.
• Ask your doctor before returning to driving. Returning to work depends on the type of work you do.

Preventing blood clots

Your surgeon may prescribe one or more measures to prevent blood clots and reduce leg swelling. They include graded compression stockings, inflatable compression coverings for the leg and blood thinners. Foot and ankle movement is encouraged right after surgery to increase blood flow to the leg muscles. The surgeon may recommend continuing blood thinners and antibiotics after you leave the hospital.

Air travel after surgery

Most of what references say about travel concerns joint replacement in general. The references we reviewed contain no guidance specific to travel after revision. So the decision to travel stays with the surgical team, according to your case and how your recovery is going. No single time frame suits everyone.

Joint surgeons’ references say the risk of blood clots rises right after surgery whether or not you travel. They say that appropriate precautions reduce this risk and make early travel possible for most patients. They note that your own comfort affects whether you are ready for a long trip. They note that you may feel more pain, stiffness or swelling if you travel early, and that a walker or crutches may make the trip easier. If you have higher-than-usual risk factors for blood clots, discuss your travel plan with your doctor and your surgeon before surgery, because it may affect the choice of preventive medicine.

The precautions mentioned include:

• Continuing compression stockings or devices and preventive medicines while traveling.
• Walking and moving around often, and stopping to walk if you are in a car.
• Calf and ankle exercises.
• Drinking plenty of fluids and avoiding dehydrating drinks such as coffee and alcohol.

A tailored travel plan made with your surgeon before surgery helps. If you will travel to have the operation, other references say long flights before surgery call for precautions against clots. They advise anyone with a personal or family history of clots to talk to their doctor at home and to their surgeon before traveling.

When to seek medical care

What follows concerns knee replacement in general and is stated in patient-oriented medical references.

Contact your surgeon or seek urgent medical advice if you have:

• Throbbing or cramping pain in the leg, or new or worsening pain in the leg, ankle or foot.
• Swelling in the thigh, calf, ankle or foot, or redness and tenderness at or below the knee.
• A fever or chills, or you feel hot, cold or shivery.
• Oozing or pus from the wound, or swelling, discoloration, odor or warmth at the wound.
• Redness, swelling or pain in the knee that is not improving or is getting worse.
• Severe pain that does not ease with pain medicine, or bleeding.

Leg symptoms may be signs of a blood clot, and wound and knee symptoms may be signs of infection. References ask you to tell your doctor immediately if you develop signs of a clot in the lung: sudden shortness of breath, or chest pain, particularly with breathing. If you cannot reach your doctor right away, seek urgent medical care.

Call emergency services or go to the emergency department immediately if you have pain and swelling in your leg together with difficulty breathing or chest pain. This may be a blood clot in the lungs, which needs immediate treatment. Do not drive yourself. Ask someone to take you or call an ambulance, and bring your medicines with you. If you have returned to your home country, seek care at the nearest medical facility and tell your surgical team when you can.

What to bring to the assessment

• The record of the earlier operation and the earlier surgeon’s report, if available.
• Details of the implant that was fitted, the date it was fitted, and any other operations on the joint.
• Old and recent X-rays and imaging.
• Test results and previous culture results, any antibiotics you were given if there was an infection, and any earlier problems with wound healing.
• A list of your medicines, medical conditions and drug allergies.

Questions to ask your surgeon before deciding

• How many revision knee operations have you performed, for what reasons, and were any similar to mine?
• In your assessment, why did my current implant fail?
• How will you identify the type of my earlier implant, and are suitable parts available?
• What is your plan for dealing with infection if there is one, and might I need a two-stage operation?
• Does my case need special planning, and am I fit to travel, or do I need stages or a longer stay?
• What complications might arise, and how are they managed?
• What is the follow-up and imaging plan after I return to my own country?

If you are comparing centers, you can read Best Orthopedic & Joint Surgery Hospitals in Turkey to see what you might ask. Remember that no answer replaces an assessment of your own case.

Estimated cost at O9 Medical

The estimated cost provided by O9 Medical ranges from USD 7,000 to USD 10,000. This is a preliminary estimate, not a final price, and it does not relate to a particular type of revision. The final price is set only after your case has been assessed and your records and imaging reviewed. It may change if unexpected complications emerge during assessment or surgery.

Cost is affected by general factors, including:

• The reason for revision and the complexity of the case.
• Whether components or only part of them are replaced.
• The type of implant and the supporting parts required.
• The length of surgery and hospital stay.
• Tests and imaging.
• Management of infection, if present.
• Physical therapy and the patient’s condition.

Always ask what the package includes and what it does not.

Revision Knee Replacement in Turkey and the Role of O9 Medical

O9 Medical helps you understand your options for revision surgery in Turkey, arrange contact with the medical team, gather your previous medical records, and get the information you need before deciding. We do not guarantee any particular result, because eligibility and the plan are the surgeon’s decision after assessment. Having the procedure outside your own country requires advance coordination of follow-up after you return.

Medical note: this information is for general education. It does not replace consultation with a specialist doctor and is not a diagnosis or a prescription.