Abstract
Purpose
The objective of this study was to compare items from musculoskeletal outcome questionnaires with items generated by pre- and post-operative ankle arthrodesis and arthroplasty patients (patient-selected portion of the Patient-Specific Index (PASI-P)) to determine if existing questionnaires address patients' concerns.
Materials/Methods
Patients (n=142) completed the PASI-P. Items from 6 standardised questionnaires (AAOS, patient-reported portion of AOFAS, FFI, LEFS, SMFA, WOMAC) and PASI-P were matched by 3 reviewers to corresponding categories in the International Classification of Functioning, Disability and Health (ICF). The ICF classification hierarchy codes broad first categories and increasingly detailed second, third, and fourth categories. The standardised questionnaires were then compared to the ‘gold standard’ of PASI-P.
Results
690 concepts were identified in the patients' responses, which corresponded to 45 ICF categories. Most PASI-P concepts fell into Activities and Participation (60.3%) and Body Functions and Body Structures (35.2%), including the second level categories ‘walking’ (21.6%), ‘pain’ (18.7%), and ‘recreation and leisure’ (17.4%).
A total of 237 concepts was identified in the 6 questionnaires and linked to 39 second level ICF categories. Overall, SMFA addressed the most second level categories and had the closest proportion of Activities and Participation (68.9%) and Body Functions (23.0%) concepts compared to the patient-generated responses. The patient-reported portion of AOFAS addressed the fewest categories. LEFS only contained items from Activities and Participation. AAOS was the only questionnaire to address the issue of ‘swelling’, though it represented 5.6% of all patient-generated responses. The concepts of ‘swelling’, ‘recreation and leisure’, and ‘sports’ were seldom included in the questionnaires.
Conclusion
No single questionnaire captured all concerns identified by patients, and the standardised questionnaires differed largely in content. Clinicians should recognise patient concerns relevant to the ankle currently not included in available questionnaires. This analysis will guide the development of a more comprehensive instrument for evaluating ankle outcomes.
