Free online AOFAS lesser toes MTP-IP score calculator

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American Orthopaedic Foot and Ankle Society (AOFAS) lesser toes MTP-IP score calculator

About the score:

Originally published in 1994 in Foot and Ankle International, the American Orthopaedic Foot and Ankle Society (AOFAS) Lesser Toe Metatarsophalangeal-Interphalangeal Rating System is a standardized evaluation of the clinical status of the metatarsals 2-5 and their associated phalanges.

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 a healthy lesser metatarsal and associated phalange receiving 100 points.

This score may be used to assess metatarsals 2-5, MTP joints 2-5, proximal, middle, and distal phalanges 2-5, proximal interphalangeal joints 2-5, and distal interphalangeal joints 2-5, and may be useful for hammertoe, mallet toe, clawtoe, bunionette, varus or valgus toe disorders, MTP arthrosis, osteonecrosis, cheilectomy, MTP implant arthroplasty, MTP resection arthroplasty, MTP instability or dislocation, IP instability or dislocation, and intra-articular or extra-articular fractures of the metatarsal and phalanx.

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:

Schneider, Wolfgang, and Stefan Jurenitsch. “Normative data for the American Orthopedic Foot and Ankle Society ankle-hindfoot, midfoot, hallux and lesser toes clinical rating system.” International orthopaedics 40.2 (2016): 301-306.

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.