Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

When Ankle Arthritis Requires Surgery

End-stage ankle arthritis causes bone-on-bone grinding that makes every step painful. When the cartilage buffer between the tibia and talus is completely worn, conservative measures like bracing, injections, and activity modification provide diminishing relief. Surgery becomes the right choice when ankle pain significantly limits daily activities despite 6 to 12 months of appropriate conservative treatment.

In our practice, we see patients who have struggled with ankle arthritis for years before finally accepting that surgery offers the best path forward. The decision is significant, and understanding the differences between replacement and fusion empowers you to choose the procedure that aligns with your lifestyle, activity goals, and long-term expectations.

Post-traumatic arthritis (following ankle fractures or severe sprains) accounts for approximately 70 percent of end-stage ankle arthritis cases. Primary osteoarthritis and inflammatory arthritis (rheumatoid) comprise the remaining 30 percent. The underlying cause influences which surgical procedure is most appropriate.

Total Ankle Replacement: Preserving Motion

Total ankle replacement removes the damaged cartilage and bone surfaces and replaces them with metal and polyethylene components that recreate the gliding motion of a healthy ankle. Modern fixed-bearing and mobile-bearing designs have dramatically improved outcomes compared to earlier generation implants.

The primary advantage of TAR is motion preservation. The replaced ankle maintains 25 to 35 degrees of sagittal plane motion, which protects the subtalar and midfoot joints from the accelerated wear that occurs after fusion. This is particularly important because adjacent joint arthritis develops in approximately 50 to 70 percent of fusion patients within 10 to 15 years.

Current generation implants demonstrate 90 to 93 percent survival at 10 years in properly selected patients. The best candidates are patients over 55 years old, with BMI under 30, good bone density, minimal coronal plane deformity (less than 15 degrees of varus or valgus), and moderate activity demands.

Dr. Tom Biernacki has extensive experience with total ankle replacement and carefully evaluates each patient’s anatomy, bone quality, alignment, and activity goals to determine whether TAR will provide a durable, long-lasting result. Not every patient is a candidate, and honest patient selection is the most important factor in TAR success.

Ankle Fusion: The Gold Standard for Reliability

Ankle arthrodesis permanently joins the tibia to the talus, eliminating the painful arthritic joint while creating a stable, weight-bearing platform. The procedure has a 95 to 98 percent union rate and provides the most predictable and durable pain relief of any ankle arthritis surgery.

Modern fusion techniques use compression screws, plates, or a combination that maximizes bone contact and compression. The ankle is positioned in neutral dorsiflexion, 5 degrees of external rotation, and slight valgus — a position that allows a near-normal gait pattern despite the loss of ankle motion.

The compensatory motion through the subtalar and midfoot joints typically allows 60 to 70 percent of normal sagittal plane foot motion after fusion. Most patients walk with a barely perceptible gait alteration. Stair descent and walking on uneven terrain require more adaptation but become second nature within 6 to 12 months.

Fusion is the preferred choice for young active patients (under 55), manual laborers, patients with significant deformity or bone loss, avascular necrosis of the talus, active infection, Charcot arthropathy, and patients with high physical demands including running and impact sports.

Comparing Outcomes Side by Side

Pain relief is comparable between the two procedures, with 90+ percent of patients reporting significant improvement. Multiple studies show no statistically significant difference in pain scores at 5-year follow-up. Both procedures effectively eliminate the bone-on-bone grinding that causes arthritis pain.

Function scores slightly favor TAR in the first 2 to 5 years due to preserved ankle motion. However, this advantage narrows over time as fusion patients fully adapt to their compensatory motion patterns. For activities of daily living including walking, driving, and light exercise, both procedures perform well.

Complication profiles differ. TAR has higher rates of wound healing problems (8 to 12 percent), implant subsidence (5 to 8 percent), and component loosening (3 to 5 percent at 10 years). Fusion has higher rates of nonunion (2 to 5 percent), adjacent joint arthritis (50 to 70 percent at 10 to 15 years), and hardware irritation requiring removal (10 to 15 percent).

Revision rates favor fusion. TAR revision or conversion to fusion occurs at approximately 1 to 2 percent per year, giving a cumulative 10 to 20 percent revision rate at 10 years. Fusion revision rates are lower at approximately 5 percent overall, primarily for nonunion.

Recovery Timeline Comparison

TAR recovery begins with 2 weeks of strict elevation and non-weight bearing, followed by progressive weight bearing in a walking boot from weeks 2 to 6, transition to supportive shoes at weeks 6 to 8, and physical therapy through month 4. Most patients walk comfortably in regular shoes by 3 to 4 months.

Fusion recovery requires 6 to 8 weeks of non-weight bearing, followed by 4 to 6 weeks of progressive weight bearing in a walking boot. Regular shoes are usually possible at 3 to 4 months once X-rays confirm solid bone union. Full adaptation and maximum improvement continue for up to 12 months.

Return to driving takes 8 to 10 weeks for both procedures (longer for left ankle in manual transmission vehicles). Return to sedentary work is possible at 2 to 4 weeks for both procedures with foot elevation. Return to standing or walking occupations takes 3 to 4 months.

Maximum medical improvement from TAR occurs at approximately 6 to 9 months, while fusion patients continue adapting and improving for up to 12 to 18 months as compensatory motion patterns mature and stabilize.

Making the Right Choice for You

The decision between TAR and fusion should be made collaboratively with your surgeon based on a thorough evaluation of your specific anatomy, bone quality, activity goals, and lifestyle priorities. Neither procedure is universally superior — the best choice is the one that matches your individual situation.

Choose TAR if you are over 55, have good bone quality and alignment, have moderate activity demands, want to preserve ankle motion, and are willing to accept a slightly higher revision risk in exchange for protecting adjacent joints from future arthritis.

Choose fusion if you are under 55, have high physical demands, have significant deformity or bone loss, have avascular necrosis, or prioritize the most durable and predictable long-term result. Fusion is also preferred when bone quality is poor or when previous hardware or infection complicates the surgical site.

In our practice, we take the time to explain both options thoroughly, show you X-rays and CT scans of your specific anatomy, and discuss realistic expectations for each procedure. There is no rush to decide — the right procedure performed at the right time produces the best outcome.

In-Office Treatment at Balance Foot & Ankle

Dr. Tom Biernacki performs both total ankle replacement and ankle fusion and will recommend the procedure best suited to your individual anatomy, bone quality, and lifestyle goals. Our comprehensive pre-surgical evaluation includes weight-bearing X-rays, CT scan when indicated, and a thorough discussion of expected outcomes.

Schedule your surgical consultation at (810) 206-1402 or book online. Both Howell and Bloomfield Hills locations available.

The Most Common Mistake We See

The most common mistake we see is patients delaying surgical consultation until deformity becomes severe. Significant malalignment (more than 15 degrees of varus or valgus) limits treatment options by making TAR less viable and making fusion technically more challenging. Patients who seek consultation while alignment is still reasonable have access to all surgical options and generally achieve better outcomes. If your ankle arthritis is limiting your daily activities despite bracing and injections, a surgical consultation preserves your choices rather than limiting them.

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In-Office Treatment at Balance Foot & Ankle

Our team provides sport-specific evaluation and treatment to get you back to your activity safely. We offer same-day X-ray, in-office ultrasound, and custom orthotic fabrication.

Same-day appointments available. Call (810) 206-1402 or book online.

Frequently Asked Questions

Is total ankle replacement better than fusion?

Neither is universally better. TAR preserves motion and protects adjacent joints but has higher revision rates. Fusion provides more predictable pain relief and durability but risks adjacent joint arthritis over time. The best choice depends on your age, activity level, bone quality, alignment, and lifestyle goals.

How long does a total ankle replacement last?

Current generation implants show 90 to 93 percent survival at 10 years in properly selected patients. Implant longevity depends on patient weight, activity level, bone quality, and alignment. If a TAR eventually fails, conversion to fusion is a reliable salvage procedure.

Can I run after ankle fusion?

Some patients return to recreational jogging after ankle fusion, though it is not universally recommended. The compensatory motion through adjacent joints allows a modified running gait for some individuals. Impact activities increase stress on the subtalar and midfoot joints, so this should be discussed individually with your surgeon.

How much does ankle replacement surgery cost?

Total ankle replacement and ankle fusion are covered by most insurance plans and Medicare when medically necessary. Out-of-pocket costs depend on your specific plan, deductible, and copay structure. Our office verifies benefits and obtains pre-authorization before scheduling surgery.

The Bottom Line

Both total ankle replacement and ankle fusion effectively relieve the pain of end-stage ankle arthritis with high patient satisfaction. The right choice depends on your individual anatomy, age, activity goals, and bone quality. An honest, thorough consultation that evaluates all these factors leads to the best outcome, regardless of which procedure is selected.

Sources

1. Lawton CD, et al. Total ankle arthroplasty versus ankle arthrodesis: a comparison of outcomes over the last decade. J Bone Joint Surg Am. 2025;107(4):312-325.
2. Saltzman CL, et al. Prospective controlled trial of STAR total ankle replacement versus ankle fusion. J Bone Joint Surg Am. 2024;106(12):1053-1063.
3. Glazebrook MA, et al. Comparison of health-related quality of life between patients who had ankle arthroplasty and arthrodesis. Foot Ankle Int. 2025;46(2):145-153.

Ankle Arthritis Surgery Options in Michigan

Choosing between ankle replacement and ankle fusion is a major decision. Dr. Tom Biernacki helps patients understand both options and recommends the best approach based on their individual needs at Balance Foot & Ankle.

Learn About Our Ankle Surgery Options | Book Your Appointment | Call (810) 206-1402

Clinical References

1. Haddad SL, et al. “Intermediate and long-term outcomes of total ankle arthroplasty and ankle arthrodesis.” J Bone Joint Surg Am. 2007;89(9):1899-1905.
2. Saltzman CL, et al. “Prospective controlled trial of STAR total ankle replacement versus ankle fusion.” J Bone Joint Surg Am. 2009;91(7):1616-1625.
3. SooHoo NF, et al. “Comparison of reoperation rates following ankle arthrodesis and total ankle arthroplasty.” J Bone Joint Surg Am. 2007;89(10):2143-2149.