More evidence was available for the measurement properties of the FAOS and the FAAM , but overall evidence supporting all measurement properties is not yet sufficient .
Purpose In the foot and ankle literature , a wide range of patient-reported outcome measures ( PROMs ) is used , however , consensus as to which PROMs are preferred is lacking .
Selection of a PROM is among other reasons , often based on measurement properties without considering the method ological quality of the studies that evaluate these measurement properties .
The aim of current study was first to identify the most frequently used foot and ankle-specific PROMs in recent orthopaedic foot and ankle literature , and second to conduct a systematic review to synthesize and critically appraise the measurement properties of these PROMS .
Evaluation of the Dutch version of the Foot and Ankle Outcome Score (FAOS): responsiveness and Minimally Important Change
Purpose The aim of this study was to evaluate the responsiveness of the Foot and Ankle Outcome Score ( FAOS ) and provide data on the Minimally Important Change ( MIC ) in patients 1 year after hindfoot and ankle surgery . Methods Prospect i ve pre-operative and 1 year post-operative FAOS scores were collected from 145 patients . A patient ’s global assessment and a longitudinal derived Function Change Score were used as external anchors . To assess responsiveness , effect sizes ( ES ) and St and ardized Response Means ( SRM ) were calculated and hypotheses on their magnitudes were formulated . Additional ROC curve analysis was performed , and the Area Under the Curve ( AUC ) was calculated as a measure of responsiveness . MIC values were estimated using two different methods : ( 1 ) the mean change method and ( 2 ) the optimal cut-off point of the ROC curve . Results Responsiveness was supported by confirmation of 84 % of the hypothesized ES and SRM and almost all AUCs exceeding 0.70 . MIC values ranged from 7 ( symptoms ) to 38 ( sport ) points . They varied between calculation methods and were negatively associated with baseline values . A considerable amount of MIC values did not exceed the smallest detectable change limit , indicating that the FAOS is more suitable at group level than for longitudinally following individual patients . Conclusions The FAOS demonstrated good responsiveness in patients 1 year after hindfoot and ankle surgery . Due to their wide variation , MIC estimates derived in this study should be interpreted with caution . However , these estimates can be of value to facilitate sample size calculation in future studies .Level of evidence Diagnostic study , Level
More evidence was available for the measurement properties of the FAOS and the FAAM , but overall evidence supporting all measurement properties is not yet sufficient .
Purpose In the foot and ankle literature , a wide range of patient-reported outcome measures ( PROMs ) is used , however , consensus as to which PROMs are preferred is lacking .
Selection of a PROM is among other reasons , often based on measurement properties without considering the method ological quality of the studies that evaluate these measurement properties .
The aim of current study was first to identify the most frequently used foot and ankle-specific PROMs in recent orthopaedic foot and ankle literature , and second to conduct a systematic review to synthesize and critically appraise the measurement properties of these PROMS .