Adult Acquired Flatfoot
Adult acquired flatfoot is the gradual collapse of the arch in adulthood — usually from posterior tibial tendon failure. Early intervention prevents progression to rigid deformity.
Medically reviewed by Michael G. Lyons, DPM — Board-Certified Foot and Ankle Surgeon
Written and reviewed by the physicians of Foot Health Centers, Hernando & Southaven, MS. Meet our doctors
- Visible flattening of one or both arches
- Inner ankle pain (early stages)
- Outer ankle pain (later stages)
- Difficulty with single-leg heel raise
- Posterior tibial tendon dysfunction
- Ligamentous laxity
- Inflammatory arthritis
- Custom orthotics
- Ankle brace or Arizona AFO
- Physical therapy
Surgery is offered for progressive deformity or pain that fails bracing.
Surgical procedures we perform
FDL Tendon Transfer with Calcaneal Osteotomy
The standard reconstruction for flexible adult acquired flatfoot — the flexor digitorum longus (FDL) tendon is transferred to replace the failed posterior tibial tendon, and the heel bone is realigned with a calcaneal osteotomy.
Learn moreSubtalar Arthroereisis
Subtalar arthroereisis places a small implant in the sinus tarsi to block excessive flattening of the foot — useful for flexible flatfoot in select patients.
Learn moreTriple Arthrodesis
Triple arthrodesis fuses three joints of the back of the foot (subtalar, talonavicular, calcaneocuboid) to correct rigid deformity and end-stage arthritis.
Learn moreReconstructive recovery: 6–8 weeks non-weightbearing, then progressive weightbearing. Full recovery 6–12 months.
Frequently asked questions
Does a flatfoot always need treatment?
A painless, flexible flatfoot may not need treatment. Painful or progressive flatfoot should be evaluated.
Related conditions
Schedule a consultation
Tell us about your adult acquired flatfoot — our team will follow up to schedule.
Ready to Get Relief?
Call Foot Health Centers to schedule your visit in Hernando or Southaven.