NIH-funded research R01 grant

How ankle fusion changes the subtalar joint in people with varus ankle arthritis

Official title: Morphologic and Kinematic Adaptations of the Subtalar Joint after Ankle Fusion Surgery in Patients with Varus-type Ankle Osteoarthritis

Funded at Utah State Higher Education System--University of Utah · NIH-11400479 · Data updated 2026-11-12

This study looks at how ankle fusion surgery affects the subtalar joint in people with varus-type ankle arthritis and aims to improve long-term joint health.

More Osteoarthritis research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUtah State Higher Education System--University of Utah
NIH-funded
Lab location1 site (Salt Lake City, United States)
Project startSeptember 12, 2023
Project endAugust 31, 2028
Funding year2026
Award (this year)$510,960
NIH project number5R01AR082952-04
Project IDNIH-11400479 on NIH RePORTER

Who could benefit from this research

Could help

Adults with varus-type ankle arthritis undergoing or having undergone ankle fusion.

Less likely to help

Patients without ankle arthritis requiring fusion or those not considering fusion for their condition may not benefit.

What this research studies

People with posttraumatic ankle arthritis sometimes need an ankle fusion to relieve pain. The project will analyze how removing motion at the ankle joint changes the subtalar joint’s shape and movement, using imaging and gait assessments. Researchers will relate these changes to potential later joint problems and to how well the fusion aligns with surrounding joints. The study builds on prior findings and seeks to guide surgical planning to reduce future arthritis in the hindfoot.

Why it matters

Potential benefit: If successful, the work could help surgeons plan ankle fusions in a way that protects the subtalar joint and reduces secondary arthritis risk.

How similar studies have gone: Earlier work suggests compensatory movements occur in the subtalar joint after ankle fusion, and this study aims to clarify and optimize that relationship.

Where this research is happening

  • Utah State Higher Education System--University of Utah
    Salt Lake City, United States
    Active

Researchers

  • Principal investigator: Anderson, Andrew Edward — Utah State Higher Education System--University of Utah
  • Study coordinator: Anderson, Andrew Edward

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.