Free online Foot and Ankle Outcome Score (FAOS) score calculator

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Foot and Ankle Outcome Score (FAOS) score calculator

 About the score:

Originally published in 2001 in Foot and Ankle International, the Foot and Ankle Outcome Score (FAOS) is an adaption of Knee injury and Osteoarthritis Outcome Score that assesses patient pain (9 items), other symptoms (7 items), function in daily living (17 items), function in sport and recreation (5 items), and foot/ankle related quality of life (4 items). Scores range from 0 to 100 with a score of 0 indicating the worst possible foot/ankle symptoms and 100 indicating no foot/ankle symptoms. The FAOS is a patient reported instrument that may be useful for assessing changes in foot/ankle pathology over time, with or without treatment.

 Original Literature:

Roos, Ewa M., Sveinbjörn Brandsson, and Jon Karlsson. “Validation of the foot and ankle outcome score for ankle ligament reconstruction.” Foot & Ankle International 22.10 (2001): 788-794.

Validation Literature:

Golightly, Yvonne M., et al. “Psychometric Properties of the Foot and Ankle Outcome Score in a Community‐Based Study of Adults With and Without Osteoarthritis.” Arthritis care & research 66.3 (2014): 395-403.

Additional Literature:

Sierevelt, I. N., et al. “Measurement properties of the most commonly used Foot-and Ankle-Specific Questionnaires: the FFI, FAOS and FAAM. A systematic review.” Knee Surgery, Sports Traumatology, Arthroscopy (2017): 1-15.

About the score developer:

Dr. Jon Karlsson is a Professor of Orthopaedics and Sports Traumatology and the Chariman of the Orthopaedic Research Department at Gothenborg University, Gothenburg, Sweden.

To view his publications, please visit PubMed.