The American College of Foot and Ankle Surgeons (ACFAS) scoring scale modules 3 and 4 have not been validated or tested against other validated instruments widely used in medical and surgical research and practice. The purpose of the present study was to evaluate the rearfoot component (module 3) of the ACFAS scoring system by assessing its correlation against well-established instruments. A modified ACFAS scale (mACFAS), Medical Outcomes Study 36-item short form (SF-36), version 2 (SF-36v2), and the short form of the International Physical Activity Questionnaire (IPAQ) were administered to subjects enrolled in our ongoing longitudinal cohort flatfoot study.
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Evaluation of the Rearfoot Component (Module 3) of the ACFAS Scoring Scale