Free online AOFAS ankle-hindfoot score calculator

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About the score:

Originally published in 1994 in Foot and Ankle International, the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Rating System is a standardized evaluation of the clinical status of the ankle-hindfoot. It incorporates both subjective and objective information. Patients report their pain, and physicians assess alignment. The patient and physician work together to complete the functional portion. Scores range from 0 to 100, with healthy ankles receiving 100 points.

This score may be used to assess the ankle, subtalar, talonavicular, and calcaneocuboid joint levels and may be useful for fractures, arthroplasty, arthrodesis, and instability procedures.

Original Literature:

Kitaoka, Harold B., et al. “Clinical rating systems for the ankle-hindfoot, midfoot,
hallux, and lesser toes.” Foot & ankle international 15.7 (1994): 349-353.

Validation Literature:

Ibrahim, Talal, et al. “Reliability and validity of the subjective component of the American Orthopaedic Foot and Ankle Society clinical rating scales.” The Journal of foot and ankle surgery 46.2 (2007): 65-74.

Additional Literature:

SooHoo, Nelson F., Raj Vyas, and David Samini. “Responsiveness of the foot function index, AOFAS clinical rating systems, and SF-36 after foot and ankle surgery.” Foot & ankle international 27.11 (2006): 930-934.

Ceccarelli, Francesco, Filippo Calderazzi, and Giuseppe Pedrazzi. “Is there a relation between AOFAS Ankle-Hindfoot Score and sf-36 in evaluation of Achilles ruptures treated by percutaneous technique?.” The Journal of Foot and Ankle Surgery 53.1 (2014): 16-21.

About the score developer:

Dr. Melanie Sanders is a board certified orthopaedic surgeon who specializes in foot and ankle surgery. She is affiliated with Franciscan Health, in Mooresville, Indiana.

To view her publications, please visit PubMed.