Total Ankle Replacement

Also called total ankle arthroplasty, it’s an operation for end-stage ankle arthritis in which the damaged joint surfaces are removed and replaced with metal and polyethylene (medical-grade plastic) components. Unlike a fusion, it’s designed to preserve much of the ankle’s natural motion while relieving pain, giving a stable, functional ankle and a more natural walk.

Healthy ankles glide on smooth cartilage; arthritis wears it away, causing painful bone-on-bone contact. The replacement swaps those damaged surfaces for precisely engineered implants — metal components fixed to the tibia and talus, with a durable polyethylene insert between them acting as a new bearing surface — restoring smooth, low-friction motion rather than eliminating it.

Patients with end-stage arthritis whose pain continues despite physiotherapy, medication, bracing, injections, or activity changes, and whose arthritis limits daily life. Modern replacements are no longer reserved for older, sedentary patients — overall health, bone quality, alignment, previous injuries, and surrounding joints usually matter more than age.

Certain medical conditions, severe bone loss, significant deformity, poor soft tissue, active infection, or inadequate blood supply may make another treatment more appropriate, and some patients with very high physical demands or complex medical issues are better served by a fusion. Choosing the right operation for the right patient is one of the biggest factors in long-term success.

Age is no longer the deciding factor it once was. Canadian surgeons, including Dr. Desai, once used a general cut-off around age 55, but modern implants and techniques have changed that. Overall health, bone quality, activity level, alignment, and personal goals now carry far more weight — some younger patients are excellent candidates, while some older patients are better suited to a fusion.

In most cases there’s no upper age limit — many healthy patients in their seventies and eighties benefit tremendously, and lower mechanical demands may even help implant survival. Dr. Desai once replaced the ankle of a very healthy 94-year-old woman living in a nursing home because of her ankle pain; after surgery she returned home and lived independently for years — a reminder to treat the patient, not the patient’s age.

The biggest advantage is preserved motion, which often allows a more natural walk and may reduce long-term stress on the surrounding foot joints. A fusion gives up ankle movement in exchange for outstanding durability. Neither is universally better — anatomy, lifestyle, activity level, and priorities decide which fits best.

Yes — preserving motion is one of the primary goals. The ankle won’t feel exactly as it did before arthritis, but most patients keep a significant amount of movement, which makes walking smoother on uneven ground, hills, and stairs. The exact amount depends on pre-operative stiffness, rehabilitation, and overall flexibility; the goal is better function, not just more degrees of motion.

It’s hard to predict exact degrees. The aim is useful, functional movement rather than a completely normal ankle, and many patients walk noticeably better because painful stiffness is replaced by smoother motion. Final range depends on how stiff the ankle was beforehand, the surrounding joints, and commitment to rehab — and patients tend to notice how the ankle feels day to day far more than the number.

Because the ankle keeps moving, walking on level ground, hills, stairs, and uneven terrain often feels smoother than after a fusion. Gait improves gradually over several months as pain and swelling settle and strength returns, with steady gains throughout the first year. It may never feel exactly like a pre-arthritic ankle, but most patients see major improvements in comfort and function.

Dr. Desai uses the Stryker PROPHECY® Infinity™ Total Ankle System, one of the most advanced patient-specific systems available. A pre-operative CT scan builds a 3D model of the ankle, and engineers design custom cutting guides to position the implants accurately. For more complex anatomy or significant deformity, he may instead recommend the Infinity INBONE™ system, which adds stability through a stem in the tibia.

A modern fixed-bearing ankle replacement that relieves pain while preserving motion. What sets it apart is patient-specific instrumentation: a specialized CT scan is used to create cutting guides made specifically for each patient’s ankle, helping position the implants with a high degree of accuracy. Studies show excellent early and mid-term results, with high satisfaction, improved function, and encouraging survivorship.

A specialized version of the Infinity system for patients with more complex anatomy — significant deformity, bone loss, or more advanced arthritis. It uses a stem that extends into the tibia for greater stability and fixation while still preserving ankle motion. The X-rays and CT scan determine which implant offers the safest operation and best long-term outcome.

Modern ankle replacement involves a great deal of planning before the operating room. About three months before surgery, a specialized CT scan of the ankle and lower leg creates a detailed 3D model used to manufacture custom surgical guides. Because those guides take roughly six weeks to make, the scan must be done well ahead of the surgical date.

No two ankles are alike — previous injuries, arthritis, deformity, and bone shape make every case unique. Custom guides built from the CT scan fit only that patient’s ankle and help prepare the bone and position the implants according to an individualized plan. Surgical experience remains essential, but the guides add another level of precision and consistency.

Preparation starts months ahead with the planning CT scan. Leading up to surgery, stay as active as the arthritis allows, eat well, and optimize conditions like diabetes or high blood pressure; stopping smoking or nicotine significantly improves healing. Preparing the home — help for the first few days and frequently used items within easy reach — makes recovery smoother. Dr. Desai also prescribes perioperative immunonutrition (amino acids and omega-3s) to support recovery; this is his own company’s product (proventherapeutics.com), a conflict of interest he discloses.

Patients meet the anesthesia team and Dr. Desai to review the procedure and answer final questions. The anesthesiologist places a nerve block behind the knee for pain control during and after surgery, and the replacement is then performed using the patient-specific guides — the damaged joint surfaces removed and replaced with metal and polyethylene components. Afterward, patients spend time in the recovery area while the anesthesia wears off before beginning the next stage of recovery.

Regional anesthesia, using a specialized nerve block behind the knee that numbs the lower leg and provides excellent pain relief during surgery and for roughly three days afterward. The anesthesia team contacts patients during those days to guide a safe transition to oral pain medication — an approach that often improves pain control while reducing the narcotic medication needed.

It’s entirely the patient’s choice. Many choose light sedation alongside the nerve block and sleep comfortably through the operation; others prefer to stay awake, listening to music or relaxing. Because the block provides excellent pain control, patients who stay awake typically feel no pain during the procedure.

It depends on the ankle’s complexity, any additional procedures, and whether deformity needs correcting at the same time. Patient-specific instrumentation streamlines much of the operation because the planning is done in advance. In Dr. Desai’s practice, a straightforward replacement takes 45 minutes to an hour; more complex cases can take up to two hours.

Most patients are pleasantly surprised. The nerve block placed behind the knee before surgery provides excellent pain control during the operation and for about three days afterward, after which patients transition to oral medication with guidance from the anesthesia team. Some discomfort during recovery is normal, but modern pain management makes the experience far more comfortable than many expect.

A form of regional anesthesia placed behind the knee under ultrasound guidance that temporarily numbs the nerves of the lower leg. In most patients it lasts about three days, during which the anesthesia team checks in daily to help transition to oral pain medication before the numbness fully wears off. Many patients say it’s one of the most helpful parts of the whole surgical experience.

No — in Dr. Desai’s practice, total ankle replacement is a day-surgery procedure. He hasn’t admitted a patient to hospital in nearly eight years, supported by a team focused on a smooth immediate post-operative recovery.

Immediately. Patients are placed in a walking boot in the operating room and allowed full weight-bearing. That said, minimal walking is recommended for the first two weeks so the wound can fully heal — the aim isn’t to walk quickly, but to build a strong, comfortable, natural walking pattern that lasts.

A walking boot, applied in the operating room to allow early weight-bearing. Some surgeons prefer a cast for the first few weeks, but Dr. Desai uses a boot from day one.

Most patients use a walking aid for several weeks while gradually increasing activity. Dr. Desai finds a knee scooter the most effective option, recommending it for the first two to three weeks before gradually progressing to full weight-bearing.

It depends on which ankle was operated on, the type of vehicle, and the ability to control the pedals safely — and never while taking narcotic pain medication. After right-ankle surgery, Dr. Desai generally recommends waiting around 7–8 weeks. After left-ankle surgery with an automatic vehicle, driving can resume once the nerve block has worn off and narcotics are stopped — sometimes as early as 3–4 days.

It depends largely on the job. Desk workers often return much sooner than those whose work involves prolonged standing, walking, climbing, or heavy labour. Comfort, mobility, swelling, and the ability to do the job safely all matter more than the calendar, and timing is decided together at follow-up visits.

Relatively early, using a railing and the right technique — usually one step at a time, leading with the stronger leg. Physiotherapy teaches the safest method, and stairs become easier and more natural as swelling decreases and strength returns over weeks and months.

Gradually, guided by the rehabilitation program. Many patients eventually return to low-impact activities such as cycling, swimming, golf, hiking, and the elliptical, which maintain fitness while placing relatively little stress on the replacement. Higher-impact activity may not be appropriate for everyone, and individual goals are discussed during recovery.

Most patients do return to golf once the ankle has healed, strength has returned, and they can walk the course or swing without pain. Dr. Desai recommends starting with putting and chipping before progressing to a full swing, and using a cart at first rather than walking 18 holes, building toward walking the course as endurance improves.

Dr. Desai does not recommend running after a total ankle replacement. Modern implants are very durable, but they are still mechanical and wear over time, and running puts far greater forces through the ankle than walking or cycling. Cycling, swimming, golf, hiking, and the elliptical offer excellent cardio with much less stress on the implant.

It depends on individual recovery, fitness, and level of play. Recreational doubles places less stress on the ankle than competitive singles, which involves repeated sprinting and sudden direction changes. Because these sports involve cutting, pivoting, and quick acceleration, they place greater demands on the replacement than cycling or golf.

Recovery is gradual and continues for many months. Most patients resume many normal activities within the first several months as swelling settles, strength returns through physiotherapy, and walking becomes more natural — but subtle gains in strength, balance, and endurance often continue for a full year.

Current research suggests roughly 90–95% of modern ankle replacements are still functioning well 10–12 years after surgery, and many last considerably longer, thanks to better implant design, technique, and patient selection. No implant lasts forever — activity level, bone quality, overall health, and demands on the ankle all influence longevity.

A worn replacement doesn’t automatically mean a fusion. In many cases a revision ankle replacement is possible, though it’s generally more complex than the original operation, often involving bone loss, implant exchange, or instability. Advances in implants and revision techniques continue to expand the options.

Serious complications are uncommon and success rates are high: roughly 85% of patients are satisfied, about 10% find no particular benefit, and about 5% report their condition has worsened — usually due to a recognized complication. These include infection (about 1% for serious infection), nerve injury or CRPS, implant loosening (implants incorporate properly about 90% of the time), vascular injury or blood clots (DVT/PE), and anesthesia-related nerve complications (under 1%).

Uncommon — about 1% for a deep infection in Dr. Desai’s practice. Most patients heal without issue, especially when post-operative instructions are followed carefully. If infection does occur, treatment depends on severity and may include antibiotics, further surgery, or, rarely, implant removal.

Loosening can cause increasing pain, swelling, or difficulty walking, and is one of the more common reasons for revision. Modern implants show excellent fixation, with the vast majority healing in successfully. If loosening is suspected, X-rays or a CT scan confirm it, and treatment ranges from careful observation to revision surgery.

Small sensory nerves run just under the skin around the ankle, so some temporary numbness near the incision is fairly common and usually improves over weeks to months. A small permanent patch of numbness occasionally remains but rarely affects function. Very rarely, patients develop Complex Regional Pain Syndrome (CRPS) — persistent pain, swelling, and hypersensitivity — where early recognition and treatment matter.

Any lower-limb surgery carries a small risk of deep vein thrombosis (DVT), and rarely a clot can travel to the lungs as a pulmonary embolism (PE) — uncommon but serious. Dr. Desai prescribes blood-thinning medication after surgery for all patients, along with early mobilization and good hydration. Increasing calf pain, significant swelling, chest pain, or shortness of breath need immediate medical attention.

Possibly — the metal alloys can occasionally trigger security screening, though many patients pass through without issue. If the detector goes off, simply tell the officer you have a joint replacement. An implant ID card usually isn’t necessary, since most agencies follow standard screening procedures instead.

Some patients notice more stiffness or aching before rain or in cold weather; others notice nothing at all. The reason isn’t fully understood, but it’s reported across many joint conditions, and the symptoms are usually mild and temporary.

The overwhelming majority are very pleased — most experience substantial pain relief, better mobility, and a major improvement in quality of life, and many say they wish they’d done it sooner. Research supports high satisfaction and meaningful functional gains. No operation guarantees a perfect result, but careful selection, meticulous technique, and structured rehab give most patients an excellent chance of long-term success.