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Ankle Replacement Surgery in London
Ankle arthritis can cause persistent pain, stiffness and swelling, making walking, exercise and everyday activities increasingly difficult. When non-surgical treatments no longer provide sufficient relief, ankle replacement surgery may be an option.
Mr Shelain Patel is a Consultant Orthopaedic Foot & Ankle Surgeon in London with specialist expertise in ankle arthritis, total ankle replacement and complex foot and ankle reconstruction.
Ankle replacement, also known as total ankle arthroplasty, involves replacing the damaged surfaces of the ankle joint with artificial components. The aim is to reduce pain while preserving movement at the ankle. It can be an effective treatment for appropriately selected patients, although it is not suitable for everyone.
This page explains how ankle replacement works, who may benefit, the alternatives to surgery, potential risks and what to expect during recovery.
What is ankle replacement surgery?
The ankle joint is formed by the lower end of the tibia and fibula and the talus bone in the foot. Smooth cartilage normally allows these surfaces to move against each other with minimal friction.
When the cartilage is damaged by arthritis, the joint can become painful and stiff. In advanced cases, the joint space narrows and changes in the underlying bone may develop.
Total ankle replacement involves removing the damaged joint surfaces and inserting artificial components designed to reproduce the movement of the ankle joint.
The main objectives are to:
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Reduce pain caused by arthritis.
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Improve walking and everyday function.
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Preserve useful movement at the ankle.
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Improve quality of life and, where possible, participation in appropriate activities.
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An ankle replacement does not recreate a completely normal ankle, and the amount of movement achieved varies between patients. The operation also requires long-term monitoring because implants can wear, loosen or require further surgery.
Who is suitable for ankle replacement?
Ankle replacement may be considered for people with painful, advanced ankle arthritis that has not responded adequately to non-surgical treatment. Suitability depends on several factors, including the condition of the ankle, the degree of deformity, bone quality, ligament stability, activity requirements and general health.
Potential candidates may include patients with:
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Post-traumatic arthritis following an ankle fracture or significant injury.
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Degenerative arthritis affecting the ankle joint.
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Persistent pain and stiffness that restrict walking and everyday activities.
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Arthritis affecting other joints in the foot, where retaining ankle movement may be particularly valuable.
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A preference to consider joint replacement rather than fusion, after discussing the relative advantages and limitations of each procedure.
Some patients with ankle deformity, previous surgery or ligament instability may still be candidates, but additional procedures may be needed.
An ankle replacement may be less suitable where there is significant uncorrectable deformity, inadequate bone support, severe instability, active infection, compromised soft tissues or other factors that increase the likelihood of failure.
Age alone does not determine suitability. Younger patients may place greater demands on an implant and have a longer lifetime during which revision could become necessary. Older patients may have medical conditions that influence surgical risk or rehabilitation. These factors need to be considered individually.
Read the detailed guide to who ankle replacement surgery is suitable for.
What are the alternatives to ankle replacement?
Ankle replacement is one of several possible treatments for ankle arthritis. The most appropriate option depends on the severity of the arthritis, symptoms, alignment, stability, activity levels and personal priorities.
Non-surgical treatment
Before considering surgery, many patients try treatments such as activity modification, physiotherapy, supportive footwear, rocker-soled shoes, orthoses, pain-relieving medication and selected injections. These approaches may reduce symptoms and help maintain function, although they do not restore cartilage that has already been lost.
Read more about non-surgical treatment for ankle arthritis.
Ankle fusion
Ankle fusion, also known as ankle arthrodesis, involves joining the tibia and talus bones so that movement at the ankle joint is eliminated. The aim is to reduce pain arising from the arthritic joint. Fusion can be an appropriate option for many patients, including some with particular patterns of deformity, instability or bone damage. However, it sacrifices movement at the ankle and may affect the mechanics of walking.
Learn more about ankle fusion surgery.
Other joint-preserving procedures
In selected patients, procedures such as ankle arthroscopy, removal of bone spurs or corrective osteotomy may help address specific problems. These operations are not appropriate for every patient, particularly when arthritis is widespread and advanced.
For an overview of the available options, see surgical treatment for ankle arthritis.
Ankle replacement versus ankle fusion
The decision between ankle replacement and ankle fusion is one of the most important considerations when treating advanced ankle arthritis.
Ankle replacement aims to relieve pain while preserving movement at the joint. Ankle fusion aims to relieve pain by eliminating movement at the arthritic joint.
Potential advantages of ankle replacement include retained ankle movement and the possibility of more natural ankle mechanics. Potential disadvantages include implant wear, loosening, the possibility of further surgery and the need for long-term surveillance.
Fusion avoids the need for an artificial ankle joint, but the loss of ankle movement may alter walking mechanics and increase the demands on neighbouring joints. Fusion also carries its own risks, including failure of the bones to unite.
Neither operation is universally superior. The decision should be based on an individual assessment and a discussion of the likely benefits, limitations and long-term implications.
Read the full comparison: Ankle replacement versus ankle fusion.
How is ankle replacement surgery performed?
Ankle replacement is performed under anaesthesia, with the precise technique depending on the implant, the patient's anatomy and any additional procedures required.
1. Pre-operative assessment and planning
Before surgery, the ankle is assessed clinically and with appropriate imaging. Weight-bearing X-rays are commonly used to evaluate arthritis, alignment and joint structure. CT scanning may be recommended to assess bone anatomy and assist surgical planning.
The assessment also considers ligament stability, the position of the heel and foot, previous operations, skin condition, medical history and any arthritis affecting neighbouring joints.
2. Replacing the damaged joint surfaces
During the operation, the damaged joint surfaces are prepared and the artificial components are positioned according to the planned surgical technique. Most implants include a component attached to the tibia, a component attached to the talus and a bearing surface between them. The exact design varies by implant.
Careful attention is given to alignment, stability and the balance of the surrounding soft tissues. Additional procedures may be needed to correct deformity or address ligament, tendon or other joint problems.
3. After the operation
Following surgery, the ankle is protected while the wound heals and the initial recovery progresses. The period of immobilisation, when weight-bearing can begin and the rehabilitation programme depend on the operation performed and the surgeon's instructions. Some patients require a longer period of protection if additional procedures have been carried out.
What ankle replacement implants are used?
Several ankle replacement systems are available. Implant designs differ in their component shape, bearing surfaces, fixation methods and surgical instrumentation.
The choice of implant depends on factors including bone anatomy, alignment, stability, bone quality, the pattern of arthritis and the surgeon's assessment of which system is appropriate.
No implant can guarantee a particular lifespan or outcome. Long-term results depend on a combination of implant design, surgical positioning, patient factors and the demands placed on the joint.
Find out more about ankle replacement implants and how they are selected.
What are the risks of ankle replacement surgery?
Ankle replacement can provide meaningful pain relief for appropriately selected patients, but it is a major operation with potential complications. These include:
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Wound-healing problems or infection.
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Blood clots.
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Injury or irritation to nerves, tendons or other surrounding structures.
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Persistent pain, stiffness or swelling.
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Implant malposition or instability.
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Fracture around an implant component.
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Loosening, sinking or wear of the implant.
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Failure to achieve the expected improvement in function.
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Further surgery, including revision replacement or conversion to fusion.
The risk profile varies according to individual circumstances. Previous surgery, deformity, bone quality, medical conditions, smoking and soft-tissue health may influence the risks.
A detailed consultation should explain the risks relevant to you, the expected benefits and the alternatives to surgery.
Read more about ankle replacement risks and complications.
Recovery after ankle replacement
Recovery is gradual and varies between patients. The operation performed, the quality of the soft tissues, bone healing, general health and whether additional procedures are required all influence progress.
In the early period, the priorities are wound healing, pain management, protection of the reconstruction and safe mobility. Weight-bearing and rehabilitation are introduced according to the individual post-operative plan.
Over subsequent weeks and months, rehabilitation focuses on restoring appropriate movement, strength, balance and walking ability. Swelling can persist for several months, and improvement may continue well beyond the initial recovery period.
Driving, returning to work, resuming exercise and wearing normal footwear depend on recovery and the nature of each activity. These decisions should be guided by the treating surgical team rather than a fixed timetable.
For a detailed guide, see recovery after ankle replacement surgery.
How long does an ankle replacement last?
Ankle replacements are designed to provide lasting pain relief and function, but no implant lasts indefinitely in every patient.
The longevity of a replacement varies according to implant design, surgical positioning, bone quality, alignment, activity levels and other individual factors. Some patients may require further surgery because of loosening, wear, instability, fracture or other complications.
Regular clinical and radiographic follow-up helps assess the condition of the implant and identify changes that may require further investigation.
It is important to discuss both the potential benefits of retaining ankle movement and the possibility of future revision surgery before deciding on treatment.
What happens if an ankle replacement fails?
If an ankle replacement becomes painful or shows signs of loosening, wear, instability or other complications, further assessment is needed to establish the cause.
Assessment may include clinical examination, X-rays, CT scans and, where appropriate, investigations to exclude infection.
Treatment depends on the underlying problem. Options may include observation, treatment of a specific complication, revision ankle replacement or conversion to ankle fusion. Revision surgery is often more complex than the original operation because of bone loss, scar tissue or changes in the surrounding structures.
A specialist opinion can help clarify the available options and their respective risks.
Read more about revision ankle replacement surgery.
Why see a specialist foot and ankle surgeon?
Ankle replacement requires careful patient selection, detailed assessment of ankle alignment and stability, appropriate implant planning and a clear rehabilitation strategy.
A specialist assessment should consider the ankle in the context of the entire foot and lower limb, including the heel, neighbouring joints, tendons and ligaments. This is particularly important when arthritis is associated with previous trauma, deformity or earlier surgery.
Mr Shelain Patel is a Consultant Orthopaedic Foot & Ankle Surgeon in London whose specialist practice includes ankle arthritis, ankle replacement, ankle fusion and complex foot and ankle reconstruction.
The aim of a consultation is to establish the cause of your symptoms, review the relevant investigations and explain the treatment options that may be appropriate for your individual circumstances.
For background on the condition itself, visit the Ankle Arthritis: Symptoms, Treatment and Surgery page.
Frequently asked questions
Is ankle replacement better than ankle fusion?
Neither procedure is best for everyone. Replacement aims to preserve ankle movement, while fusion eliminates movement at the joint to relieve pain. The most appropriate option depends on your anatomy, arthritis, activity requirements and individual risk factors.
Can I walk normally after ankle replacement?
Many patients experience improvements in pain and walking function, but the result varies. An ankle replacement does not recreate a normal ankle, and some stiffness, swelling or activity limitations may remain.
How long will I be off work?
This depends on the demands of your job, your recovery and whether additional procedures are performed. Desk-based work may be possible earlier than work involving prolonged standing, walking or manual activity. Your surgeon can advise according to your circumstances.
Can I play sport after ankle replacement?
The activities you can safely undertake depend on your recovery, implant, symptoms and individual circumstances. Lower-impact activities may be more appropriate than repeated high-impact sports. Discuss your goals with your surgeon before surgery.
Will I need another operation?
Not everyone requires further surgery, but an ankle replacement can wear, loosen or develop other complications. The possibility of revision surgery should be part of the decision-making process.
Is ankle replacement suitable after an ankle fracture?
It may be suitable for some patients who develop post-traumatic ankle arthritis after a fracture. Previous damage, deformity, bone quality and soft-tissue condition need careful assessment.
How do I know whether I need ankle replacement?
A diagnosis of ankle arthritis does not automatically mean that surgery is required. An assessment can help determine whether continued non-surgical management, another procedure, ankle fusion or ankle replacement is the most appropriate option.
Book a consultation
If you have persistent ankle pain, stiffness or diagnosed ankle arthritis and would like to understand your treatment options, a specialist foot and ankle assessment can help establish the cause of your symptoms and determine whether non-operative treatment, ankle replacement, fusion or another approach is appropriate.
Book a consultation with Mr Shelain Patel, Consultant Orthopaedic Foot & Ankle Surgeon in London.