Total Ankle Replacement

Both are valid options for end-stage ankle arthritis. Ankle replacement preserves motion and protects adjacent joints but has higher revision rates. Ankle fusion provides reliable pain relief and is very durable but eliminates ankle motion and may accelerate subtalar and midfoot arthritis. Replacement is generally preferred for lower-demand patients, bilateral disease, existing adjacent joint arthritis, and those prioritizing mobility. Fusion is generally preferred for younger active patients, significant deformity, avascular talus, and those needing maximum durability. Your surgeon will recommend the optimal approach based on individual assessment.

Published clinical studies and joint registry data indicate modern ankle implants show approximately 80-90% survival at 10 years and 65-80% at 15 years, varying by implant type and patient factors. Results have improved significantly with newer-generation designs and better patient selection. Failure rates are higher than hip or knee replacements due to the ankle's complex biomechanics and thinner soft tissue coverage. If an implant fails, revision replacement or conversion to fusion is possible. Individual outcomes depend on activity level, body weight, bone quality, and implant type.

Low-impact activities are encouraged including walking, swimming, cycling, golf, yoga, and light hiking. Moderate activities such as doubles tennis and skiing with caution may be possible for some patients. High-impact activities including running, jumping, and basketball, and uneven terrain activities should be limited to preserve the implant. Most patients report improved walking ability and quality of life compared to pre-surgery function, though individual results may vary.

Ideal candidates are typically over 50-60 years of age with end-stage ankle arthritis, adequate bone stock, correctable alignment (less than 15 degrees deformity), and lower physical demands. Contraindications include extensive talar avascular necrosis, active infection, severe peripheral vascular disease, Charcot neuroarthropathy, non-functional muscles, and morbid obesity. Younger, high-demand patients generally have higher revision rates. Your surgeon will assess candidacy based on imaging, physical examination, and activity goals.

Mild to moderate deformity up to 15 degrees of varus or valgus can be corrected at the time of ankle replacement through soft tissue balancing and bony cuts. Severe deformity greater than 15 degrees may require staged procedures (correction then replacement) or may be better treated with ankle fusion. Thai surgeons assess alignment on weight-bearing imaging and recommend the optimal approach for each patient's specific anatomy.

A stay of 4-6 weeks is recommended due to the non-weight-bearing recovery period. This includes 2-4 days hospitalized followed by 4-5 weeks in nearby accommodation for wound checks, cast changes, and early physiotherapy. The extended stay provides direct access to the surgical team during the critical bone integration period. Most patients transition to a walking boot before departure, and telemedicine follow-up is available for continued coordination with the Thai surgical team.

Depending on individual anatomy, concurrent procedures may include Achilles tendon lengthening for tightness, subtalar fusion for hindfoot arthritis, ligament reconstruction for instability, or osteotomy for alignment correction. These are assessed during pre-operative planning and discussed with the surgeon. Package pricing typically covers the primary ankle replacement, with concurrent procedures quoted separately based on complexity.

The boot or cast is worn for 8-12 weeks post-surgery during the bone integration period. After this, regular supportive shoes are worn. Most patients transition to normal footwear by 3-4 months. Some patients benefit from custom orthotics or ankle braces for added stability during the first year. Long-term footwear restrictions are minimal for most patients.