Purpose: The aim of this study was to investigate the Turkish validity and reliability of the Patellofemoral Pain Severity Scale (PSS) in patients with patellofemoral pain (PFP) and to adapt it to Turkish.
Materials And Methods: A pilot study was conducted with 10 patients. 123 patients underwent PSS test-retest at 24-48 h intervals. Construct validity, correlations of PSS with other scales Timed Up and Go Test (TUG), Stair Climbing and Descending Test (SCD), Anterior Knee Pain Scale (AKPS), Tegner Activity Scale (TAS), Lysholm Knee Scoring Scale (LDSS), Knee Outcome Survey Activities of Daily Living Scale (KOS-ADL) were evaluated.
Results: The content validity index value of the scale was 0.95. The overall internal consistency (Cronbach α: 0.88) was high. Item-total correlations of the scale were between 0.51 and 0.7. In the evaluation of the convergent validity of the PSS, it was found that there was a positive correlation between the PSSS and TUG and SCD, and a negative correlation between the PSS, TAS, LDSS and KOS-ADL ( = 0.000).
Conclusions: In this study, it was determined that the PSSS scale had good internal consistency, test-retest validity and adequate construct validity when compared with the KOS-ADL, LDSS and AKPS.
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