Who Is a Good Candidate for Ankle Replacement? Arthritis Type, Alignment and Activity

The stairs are the tell. Not the flight itself, but the pause at the bottom, one hand on the rail, calculating. People with worn-out ankles learn to ration steps the way others ration money, and by the time they sit across from an orthopedic surgeon, most have already tried the brace, the stiff-soled shoes, the injection, the quiet dropping of hobbies they loved.

Then the question arrives: am I an ankle replacement candidate, or is fusion the safer bet? It is a genuinely different question from the one asked about hips and knees, because the ankle is small, carries more force per square inch than either, and forgives less. The answer depends on three things surgeons weigh together: what kind of arthritis destroyed the joint, how straight the ankle sits under the leg, and what you plan to do with it afterward.

This explainer walks through each of those, honestly, including the situations where the right answer is not yet, or not this operation.

What an ankle replacement actually does

Total ankle replacement, also called total ankle arthroplasty, removes the damaged surfaces of the two bones that form the ankle hinge and resurfaces them with metal and plastic components. The tibia is the shin bone; the talus is the small, saddle-shaped bone beneath it that rocks forward and back when you walk. Arthritis strips the smooth cartilage from where these two meet, leaving bone grinding on bone. The implant restores a gliding surface between them (MedlinePlus).

In practice, the surgeon makes an incision over the front or side of the ankle, cuts away a thin layer of worn bone from the bottom of the tibia and the top of the talus, and fits a metal cap to each. A polyethylene liner, a dense medical plastic, sits between the two metal parts and takes the place of cartilage. Ligaments and tendons around the joint are usually kept, and sometimes tightened or lengthened, so that the new hinge tracks straight.

The point of all this is motion. A healthy ankle moves through roughly a quarter turn of up-and-down travel during normal gait, and even a modest amount of that preserved motion changes how the foot rolls through a step. When the ankle cannot move, the joints just below it and the knee above take up the slack, and over years that extra load can wear them down in turn. Replacement aims to relieve pain while keeping some of that natural hinge working.

What it does not do is turn back the clock. The implant is a mechanical part in a joint that absorbs several times body weight with every stride. Its job is to make walking, stairs and ordinary daily life tolerable again, not to return an ankle to the durability of a twenty-year-old’s. Understanding that trade sits at the heart of every candidacy conversation.

Which arthritis type makes someone an ankle replacement candidate?

Ankle arthritis is unusual among the big joints. In hips and knees, ordinary wear-and-tear osteoarthritis dominates. In the ankle, the story is more often trauma: an old fracture, repeated sprains, or a bad twist decades ago that left the joint surface slightly off and quietly grinding ever since. Surgeons call this post-traumatic arthritis, and it is the single most common reason people end up discussing replacement.

Primary osteoarthritis, the slow thinning of cartilage that comes with age and genetics, does occur in the ankle but less frequently. It tends to leave the joint relatively symmetric and the bones relatively intact, which, all else being equal, makes for a more straightforward implant.

Inflammatory arthritis is the third group. Rheumatoid arthritis is an autoimmune condition in which the body’s own defenses attack the joint lining, causing swelling, erosion and, over time, destruction of bone and cartilage (NHS). People with rheumatoid disease were among the early groups considered for ankle replacement, partly because fusion is a harder sell when several neighboring joints are already stiff. The trade-off is that inflammatory disease and its long-term treatments can leave bone softer and skin thinner, both of which raise the stakes of any implant surgery.

Why does the type matter for candidacy? Because it predicts the terrain. Post-traumatic ankles often come with old hardware, scar tissue, bone loss on one side of the joint and ligaments stretched by years of instability. That is a more complex reconstruction than an evenly worn osteoarthritic ankle, and it is where alignment (covered next) becomes decisive. Inflammatory ankles bring questions about bone quality, healing capacity and how well the underlying disease is controlled by the rheumatology team.

None of these diagnoses rules replacement in or out by itself. They set the starting conditions the surgeon has to work with.

Why ankle alignment matters more than the X-ray looks

Stand a book on a table and it stays put. Tilt the table by a few degrees and the book slides. An ankle implant behaves the same way: it depends on the load coming straight down through the middle of the joint. If the heel drifts inward or outward, or the talus sits tilted inside the ankle mortise (the squared socket formed by the shin bones), one edge of the plastic liner takes far more force than the other. Plastic wears unevenly, the components can loosen, and the ankle can gradually slide back toward its old crooked position.

This is why surgeons look at weight-bearing X-rays of the whole leg, not just the ankle. Deformity can hide above the joint (a healed shin fracture that set at an angle), inside the joint (a tilted talus), or below it (a flat or high-arched foot that tips the heel). Each level may need its own correction before or during a replacement.

Mild and moderate malalignment is often correctable. A surgeon may release or tighten ligaments, shave bone, or cut and realign a bone above or below the joint (an osteotomy) in the same operation or as a first stage. When the tilt is severe, however, correction becomes less predictable, and many surgeons steer toward fusion, which does not rely on a balanced plastic bearing to survive.

Ligament integrity is the quieter half of this story. Years of instability can leave the outer ankle ligaments stretched like old elastic. Without them the implant has no soft-tissue guide rails, and the balancing that keeps the components centered is harder to achieve. A stable-feeling ankle on examination is therefore a genuinely favorable sign, even when the X-ray looks grim.

The practical message: alignment is not a minor footnote on the imaging report. For many people it is the factor that decides which operation is realistic.

Activity level: what surgeons mean by 'low-demand'

Patients sometimes bristle at the phrase low-demand. It sounds like a verdict on their lifestyle. In orthopedic shorthand it means something narrower: how much repetitive impact the new joint will be asked to absorb over the years it needs to last.

Walking, swimming, cycling, golf, hiking on reasonable terrain, gardening, and the ordinary business of a working day are the activities ankle replacements are designed around. Running, jumping sports, heavy manual labor that involves ladders and uneven ground, and anything that repeatedly slams the foot down with the full weight of the body multiplied several times over are the activities most surgeons ask people to give up, or to accept as a risk to the implant’s lifespan.

The reasoning is mechanical rather than moralizing. The ankle’s contact surface is small, roughly a third the size of a knee’s, so the same body weight produces far higher pressure per square inch on the plastic bearing. Impact loads multiply that further. Patient resources describe a well-functioning ankle replacement as one that may last a decade or more (MedlinePlus), and that expectation is built on moderate use. High-impact loading is one of the clearer ways to shorten it.

Body weight enters the conversation for the same reason and deserves respectful framing. Heavier bodies place more force on the bearing with every step, and a surgeon may discuss this as one variable among several rather than as a barrier. It is a conversation about physics, not character.

Where fusion fits: a fused ankle has no bearing to wear out. For a younger person with a physically demanding job who intends to keep doing it, fusion’s durability often outweighs the loss of motion. For someone whose priority is a comfortable, natural-feeling walk and who is content to leave running behind, replacement tends to look more attractive. Neither choice is wrong; they answer different questions.

Who is not a good candidate for ankle replacement, and who is asked to wait

Some situations close the door on replacement, at least for now. Others simply push the timeline back while a problem is addressed. Sorting one from the other is a large part of what the pre-operative workup is for.

Active infection anywhere in or near the joint is the firmest exclusion. Implants offer bacteria a surface to colonize, and an infected replacement often means removing it. A history of previous deep infection in the ankle also weighs heavily.

Loss of protective sensation is another. Peripheral neuropathy, nerve damage that dulls feeling in the feet and is often linked to long-standing diabetes, means a person may not notice the early warning signs of an implant in trouble. Charcot arthropathy, a related condition in which bones of the foot and ankle break down and collapse without much pain, is generally regarded as incompatible with replacement.

Poor circulation, fragile or scarred skin over the front of the ankle, and dead bone in the talus (avascular necrosis, where the blood supply has failed and the bone has softened) all raise the risk that the implant will not be supported or the wound will not heal. Severe, uncorrectable deformity, discussed above, belongs on this list too.

Then there is the wait category. Smoking impairs bone and wound healing and most surgeons ask people to stop well before surgery. Poorly controlled blood sugar, active flares of inflammatory disease, untreated skin conditions over the incision site, and unresolved infections elsewhere in the body are typically addressed first. A person in this group is not being refused; the team is stacking the odds before committing to an operation that is hard to redo.

Younger age and heavy physical work are relative rather than absolute concerns, and they get their own section next. The honest summary: the best candidates are people whose only problem is the arthritic joint itself.

What is the best age for total ankle replacement?

There is no magic birthday. The question people are really asking is whether they are too young for an implant that will wear, or too old to recover from surgery. Both deserve a straight answer.

On the young side, the concern is arithmetic. If a replacement is expected to function for a decade or more under moderate use (MedlinePlus), a person in their forties may face one or more revision operations over a lifetime. Each revision is more complex than the first, because bone has been removed and scar tissue laid down. Younger people also tend to be more active and heavier users of the joint. For these reasons, many surgeons have historically favored fusion in younger, higher-demand patients and reserved replacement for those in later middle age and beyond.

That line has softened as implant designs and surgical techniques have matured, and it was never a rule so much as a risk judgment. A younger person with inflammatory arthritis affecting several joints, or with a fused joint on the other side already, may reasonably choose replacement to preserve motion even knowing a revision is likely.

On the older side, age itself is rarely the barrier. What matters is overall health: heart and lung fitness for anesthesia, bone density adequate to hold the components, circulation to heal the wound, and the ability to manage a period of protected weight-bearing on crutches or a walker. An active, healthy person in their late seventies may be a stronger candidate than a much younger person with uncontrolled diabetes and a smoking habit.

Osteoporosis, the loss of bone density that becomes more common with age (Mayo Clinic), is the age-related factor surgeons watch most closely, since soft bone can allow components to sink or shift. A bone density scan is a routine part of many evaluations for this reason.

So the honest answer: candidacy is about the state of the body, not the number on the chart.

Ankle replacement vs fusion: the honest comparison

Ankle fusion, or arthrodesis, removes the arthritic surfaces and joins the tibia and talus permanently with screws or plates so they heal into a single bone. It has been the standard operation for end-stage ankle arthritis for decades. Replacement preserves motion; fusion trades it for durability. Neither is universally better, and a good surgeon will lay out both.

Factor	Total ankle replacement	Ankle fusion
Motion after surgery	Partial up-and-down movement preserved	Ankle hinge eliminated; nearby foot joints supply what motion remains
Typical candidate profile	Older or lower-demand adult, good alignment, adequate bone	Younger, heavier-use adult, severe deformity, poor bone or soft tissue
Main long-term concern	Wear or loosening of components over years	Extra stress on neighboring joints, which may develop arthritis
Gait	Closer to natural roll-through of the foot	Stiffer step; many adapt well with rocker-soled shoes
If it fails	Revision replacement or conversion to fusion	Repeat fusion; conversion to replacement is difficult
Exclusions	Infection, neuropathy, dead talar bone, severe uncorrectable tilt	Fewer absolute exclusions; infection still a barrier

Two points from the table deserve emphasis. First, fusion is not a lesser operation. For a construction worker in his forties with a crooked post-traumatic ankle, it is very often the wiser choice, and people who have it done generally return to demanding work in a way many replacement patients are asked not to.

Second, the escape routes differ. A failed replacement can usually be converted to a fusion, though with more bone loss to overcome. A fused ankle is rarely converted the other way. That asymmetry is one reason some surgeons frame replacement as the option to consider first in suitable candidates, and fusion as the more permanent commitment.

Which matters more to you, motion or durability, is a personal weighting, and it belongs in the conversation with your team.

How serious is an ankle replacement? Risks in plain language

It is major surgery on a small joint with thin skin over it. That combination is what makes ankle replacement more demanding than its scale suggests, and the risks are worth knowing in order rather than in a frightening list.

Wound problems come first in most surgeons’ minds. The front of the ankle has little padding between skin and bone, and blood supply to that skin is modest. Slow healing or breakdown of the incision is a recognized complication, and it is why circulation, smoking status and skin condition receive so much attention beforehand (MedlinePlus).

Infection follows, both in the wound and, more seriously, deep around the implant. Deep infection can mean removal of the components and a prolonged course of treatment before any reconstruction is attempted.

Bone-related problems include fracture of the malleoli, the bony knobs on either side of the ankle, during or after surgery, and loosening or sinking of components into soft bone over time. Nerve and blood vessel injury are possible given how many structures cross the front of the ankle. Stiffness, persistent pain and the failure of the ankle to feel as improved as hoped are outcomes that are hard to predict for any individual.

Blood clots deserve a specific mention. Surgery on the leg, followed by weeks of reduced movement in a cast or boot, raises the risk of deep vein thrombosis, a clot forming in a deep leg vein that can travel to the lungs (CDC). Teams typically use a combination of early movement of the hip and knee, compression and, where appropriate, clot-preventing medication; the choice and duration of any medication belong to the treating team.

None of this is an argument against the operation. It is the context in which candidacy decisions are made: every factor in this article is really a way of predicting who will sail through these risks and who will not.

Is ankle replacement more difficult than knee replacement?

Technically, yes, and it helps to understand why, because the reasons feed straight back into who is a good candidate.

Size is the first issue. Knee components sit on broad, flat bone with generous room for adjustment. Ankle components must fit within a joint roughly a third the size, transmitting similar or greater loads through a much smaller area. Millimeters of error in cutting or positioning matter more.

Soft tissue is the second. The knee is wrapped in thick muscle and fat. The ankle is covered by skin, a thin layer of tissue, tendons and nerves, then bone. Surgical exposure is tighter, wound healing is more precarious, and there is less margin for swelling.

Deformity is the third. Most knees that need replacing are worn fairly evenly. Most ankles that need replacing are post-traumatic, meaning old fractures, bone defects, stretched ligaments and tilt that the surgeon must correct while also fitting the implant.

Volume is the fourth. Knee and hip replacements are performed in enormous numbers worldwide, and the procedures have been refined by that experience. Ankle replacement remains far less common, and much of the outcome data comes from smaller series and national registries rather than the vast datasets available for knees.

What this means for a prospective patient is not that the operation is too risky to consider, but that the selection process is deliberately stricter. A knee surgeon can accommodate a wider range of alignment, bone quality and body types; an ankle surgeon has less room to compensate and therefore leans harder on choosing the right patient. That is why candidacy criteria for ankle replacement read like a checklist of ideal conditions: they are, in effect, the conditions under which a technically demanding operation behaves predictably.

Recovery also tends to feel slower and more restrictive than after a knee, largely because of the protected weight-bearing period discussed later.

What happens before a decision: the candidacy workup

Nobody is booked for an ankle replacement on the strength of a single X-ray. The evaluation is built to answer the three questions this article keeps returning to: what kind of arthritis, how well aligned, and what will the joint be asked to do.

The conversation comes first. A surgeon will want to know how the arthritis started, what has already been tried, what a typical day looks like, what work involves, and what the person hopes to get back. This is also where honest disclosure about smoking, blood sugar control and previous infections shapes the plan.

Examination follows. The surgeon watches the person walk, checks how much the ankle moves, tests ligament stability by gently stressing the joint, examines the skin over the front of the ankle, feels pulses in the foot and tests sensation. Each of these maps directly onto a risk discussed earlier.

Imaging then fills in the structure. Weight-bearing X-rays of the ankle and often the whole leg show alignment under real load. A CT scan, which builds a three-dimensional picture from many X-ray slices, reveals bone loss, cysts and the quality of the talus. MRI, which images soft tissue and bone marrow using magnetic fields, may be used to look for dead bone or tendon damage. A bone density scan may be requested if osteoporosis is suspected (Mayo Clinic).

Medical fitness is assessed separately: heart, lungs, kidneys and blood sugar, along with a review of medicines that affect clotting or healing. People with inflammatory arthritis usually have their rheumatology team involved in planning around disease-modifying treatments.

Only after all of this does the team put the pieces together. Sometimes the answer is replacement. Sometimes it is fusion. Sometimes it is a staged plan, correcting alignment first and revisiting the joint later. The workup exists to make that answer a considered one.

Ankle replacement recovery time: what the following weeks usually look like

Recovery from ankle replacement is measured in months, not days, and the early weeks are more restrictive than many people expect. The specifics vary by surgeon and by what else was done during the operation, so treat the following as a typical shape rather than a schedule.

The hospital stay is generally short, often a night or two, focused on pain control, checking the wound and learning to move safely without putting weight through the operated leg (MedlinePlus). The ankle is protected in a splint or cast, and the leg is kept elevated much of the time to limit swelling, which is the main threat to the healing incision in this phase.

The first several weeks are about protected weight-bearing. Most surgeons keep weight off or sharply limited while the bone begins to bond to the implant and the wound matures; crutches, a walker or a knee scooter become part of daily life. Movement of the toes, knee and hip is encouraged from the start to keep blood flowing and reduce clot risk (CDC).

As weeks pass, the cast typically gives way to a removable boot, and physical therapy begins in earnest: gentle range of motion at first, then progressive loading, balance work and gait retraining. Swelling can linger for months and is often the last thing to settle.

Driving, return to desk work and return to more physical activity all depend on which leg was operated on, how the wound has healed and the surgeon’s protocol. Full functional recovery, where the ankle feels like a dependable part of the body rather than a project, is commonly described in terms of many months to a year.

Two things make this period go better: taking the weight-bearing restrictions seriously, since early loading is a known route to component problems, and building the home for it beforehand: a bed you can reach without stairs, a shower plan, and someone to help in the first week.

What people often get wrong about ankle replacement candidacy

‘If the X-ray shows bone on bone, I need a replacement.’ Imaging describes the joint, not the person. Plenty of ankles that look terrible on film are managed for years with bracing, footwear changes, activity adjustment and injections, and surgery is generally reserved for pain that persists despite these measures (NHS). The X-ray gets you into the conversation; it does not end it.

‘Replacement is the modern option, fusion is old-fashioned.’ Fusion remains the more durable operation and the better fit for many people, particularly younger, heavier-use patients and those with severe deformity. Choosing it is not settling.

‘I will be able to run again.’ Most surgeons ask replacement patients to give up running and jumping sports permanently. Walking, cycling, swimming and golf are the realistic targets. Anyone promised more should ask what evidence supports the promise.

‘It lasts a lifetime, like a hip.’ Patient resources describe ankle implants commonly functioning for a decade or more under moderate use (MedlinePlus), and revision is a realistic possibility for younger patients. The comparison with hips flatters the ankle.

‘Age alone decides it.’ Bone quality, circulation, sensation, skin, alignment and activity carry far more weight than a birth year. A healthy older person is often a better candidate than a younger person with uncontrolled medical conditions.

‘A small ankle operation means a quick recovery.’ The protected weight-bearing period, swelling and thin soft tissues make recovery slower and more restrictive than most people anticipate from a joint this size.

‘The surgeon decides for me.’ The surgeon judges what is technically feasible and safe. Whether motion or durability matters more to your life, and whether you are willing to accept the restrictions each option brings, is a judgment only you can make. The best decisions happen when both halves of that conversation are honest.

Questions to ask your care team

A candidacy consultation moves fast, and people often leave realizing they never asked the thing that mattered most. Writing questions down beforehand changes that. These are the ones that tend to open the most useful conversations.

• What type of arthritis do I have, and how does that affect which operation you would recommend for me?
• How is my ankle aligned under load, and does anything above or below the joint need correcting first or at the same time?
• How is my bone quality, particularly in the talus, and did any imaging raise concern about dead or cystic bone?
• Given my age, weight, work and the activities I care about, would you lean toward replacement or fusion, and why?
• What activities would I be asked to give up permanently after each option?
• Which of my medical conditions or habits would you want addressed before surgery, and how long might that take?
• What is your plan for wound healing and swelling given the skin over my ankle?
• How long would I be non-weight-bearing or partially weight-bearing, and what support will I need at home during that time?
• What would be done if the replacement wore out or loosened years from now?
• How will blood clot prevention be handled, and for how long?
• What are the realistic non-surgical options if I decide to wait, and what would tell us that waiting is no longer wise?

Bring someone with you if you can. A second set of ears catches what anxiety filters out, and the answers to these questions are the raw material of a decision you will live with for years. If the answers feel rushed, it is reasonable to ask for a further appointment before committing.

Above all, ask the team to explain not just what they recommend but what they considered and set aside. That reasoning is where the real information lives.

When to call your doctor

Before surgery, the arthritis itself rarely produces emergencies, but a few changes warrant a prompt call rather than waiting for the next scheduled visit: a sudden increase in pain after a twist or fall, new redness and warmth over the joint with fever, an ankle that begins to give way unpredictably, or numbness and color change in the foot. These may signal a fracture, infection or a circulation problem that alters the surgical plan.

After ankle replacement, the early weeks are when problems announce themselves, and speed matters. Contact the surgical team the same day for any of the following (MedlinePlus):

• Increasing redness, warmth, swelling or drainage from the incision, or edges of the wound separating
• Fever or chills
• Pain that is worsening rather than steadily easing, or pain out of proportion to what you were told to expect
• Numbness, tingling or loss of movement in the toes, or toes that look pale, blue or dusky
• A cast or splint that feels far too tight, or that has cracked or become wet
• Any fall or misstep onto the operated leg

Seek emergency care immediately, without waiting to reach the clinic, for signs of a blood clot: new calf pain, swelling or tenderness in the leg, or, more urgently, sudden shortness of breath, chest pain that worsens with breathing, a rapid heartbeat or coughing up blood, which can indicate a clot that has traveled to the lungs (CDC).

Later on, a replaced ankle that has been comfortable for months or years and then develops new, persistent pain, swelling, a sense of shifting or a change in how the foot sits deserves a review with the surgeon rather than a wait-and-see approach. Loosening and infection are both more manageable when caught early.

When in doubt, call. Surgical teams would far rather hear about a false alarm than discover a real problem late, and the judgment about what needs to be seen is theirs to make.

Frequently asked questions

Who is not a good candidate for ankle replacement?

People with active infection, nerve damage that dulls sensation in the feet, Charcot changes, dead bone in the talus, poor circulation, fragile skin over the ankle or severe uncorrectable deformity are generally not considered suitable. Heavy smokers, people with uncontrolled diabetes and those whose work involves heavy impact are often asked to address those factors first or to consider fusion instead. The treating team weighs all of these together rather than applying any single rule.

How serious is an ankle replacement?

It is major orthopedic surgery on a small joint covered by thin skin, which makes wound healing, infection and swelling the main early concerns. Blood clots, fracture of the bones beside the ankle, nerve injury and later loosening of the components are recognized risks. The operation itself typically involves a short hospital stay followed by weeks of protected weight-bearing and months of rehabilitation. Careful patient selection exists precisely to keep these risks as low as possible.

What is the best age for total ankle replacement?

There is no single best age. Younger, more active people face a realistic chance of needing revision because implants wear with time and load, so fusion is often favored for them. Older adults are rarely excluded by age alone; bone density, circulation, general health and the ability to manage crutches matter far more. Candidacy is judged on the condition of the body and the joint, not on a birth year.

Is ankle replacement more difficult than knee replacement?

Yes, technically it is more demanding. The ankle is much smaller, carries higher pressure per square inch, is covered by thin soft tissue with modest blood supply, and is usually deformed by old injury rather than evenly worn. Far fewer are performed worldwide, so the evidence base is smaller. This is why selection criteria are stricter and why alignment, bone quality and skin condition receive so much attention before surgery.

Ankle replacement vs fusion: which is better?

Neither is better in every case. Replacement preserves some up-and-down motion and a more natural gait but relies on a plastic bearing that wears over time. Fusion eliminates the joint permanently, which is very durable but places extra stress on nearby foot joints and stiffens the step. Younger, heavier-use patients and those with severe deformity are more often guided toward fusion; older, lower-demand patients with good alignment more often toward replacement.

How long is ankle replacement recovery time?

Recovery is measured in months. A short hospital stay is followed by several weeks in a cast or splint with weight kept off or limited, then a boot and progressive physical therapy. Swelling can persist for months and is often the last symptom to settle. Most people describe the ankle feeling fully dependable somewhere in the range of many months to around a year, though this varies with the individual and the surgeon’s protocol.

Can I run or play sports after an ankle replacement?

Most surgeons ask people to give up running, jumping and contact sports permanently to protect the implant from high-impact loading. Walking, hiking on reasonable terrain, cycling, swimming, golf and similar activities are the usual targets. Because the ankle bearing is small and carries high pressure, repeated impact is one of the clearer ways to shorten its working life, and that trade-off should be discussed openly before choosing between replacement and fusion.

Does the type of arthritis affect whether I can have an ankle replacement?

It shapes the decision rather than deciding it. Primary osteoarthritis tends to leave a symmetric joint with intact bone, which suits an implant well. Post-traumatic arthritis often brings deformity, bone loss and stretched ligaments that must be corrected. Inflammatory arthritis such as rheumatoid disease raises questions about bone softness, skin fragility and disease control, usually involving the rheumatology team. Each type sets different starting conditions for the surgeon.

What happens if an ankle replacement wears out?

Worn or loosened components can often be revised with new parts, though bone loss makes each revision more complex than the original operation. When revision is not feasible, the ankle can usually be converted to a fusion, sometimes with bone graft to make up for missing bone. Because a fused ankle is rarely converted the other way, some surgeons frame replacement as the option to try first in suitable candidates.

Do I have to lose weight or stop smoking before ankle replacement?

Smoking impairs bone and wound healing, both critical in this operation, and most teams ask people to stop well before surgery. Body weight is discussed as a mechanical factor because heavier loads increase pressure on the bearing, though it is weighed alongside many other variables rather than treated as a fixed barrier. Blood sugar control, skin health and any infections are also typically addressed first. These are ways of improving the odds, not judgments.

References

• MedlinePlus Medical Encyclopedia: Ankle replacement
• NHS: Osteoarthritis
• NHS: Rheumatoid arthritis
• CDC: About Venous Thromboembolism (Blood Clots)

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.