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The 45-second anterior knee pain provocation test: A quick test of knee pain and sporting function in 10-14-year-old adolescents with patellofemoral pain

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Objective: To test 1) if the 45-second Anterior Knee Pain Provocation Test (AKPP-test) could differentiate between adolescents with patellofemoral pain (PFP) and pain-free controls and; 2) whether improvements in the AKPP-test over 12 weeks were associated with improvements in self-reported knee function and pain. Design: Prospective cohort. Patients: 151 with PFP and 50 pain-free controls (age 10–14 years). Outcomes: The AKPP-test was performed at baseline, 4- and 12-week follow-up. Pain and function were collected using Knee Injury and Osteoarthritis Outcome Score (KOOS). Results: At baseline, the AKPP-test provoked pain to a median of 5 points (IQR: 3–7) on the 0–10 Numeric Pain Rating Scale in adolescents with PFP, compared to 0 (IQR 0-0) in controls. Higher pain during the AKPP-test was associated with worse KOOS-Sport/Rec (r = −0.33, P < 0.001), worse KOOS-Pain (r = −0.47, P < 0.001), and pain intensity (worst pain last 24 hours) (r = −0.39, P < 0.001) at baseline. Improvements in the AKPP-test over 12 weeks were associated with improvements in KOOS Pain (r = 0.48, P < 0.001) and KOOS Sport/Rec (r = 0.40, P < 0.001). Conclusions: Improvements in the AKPP-test were associated with improvements in self-report knee pain and limitations in sports, suggesting the AKPP-test may be a clinically responsive test of knee pain and sporting function in adolescents with PFP.

Original languageEnglish
JournalPhysical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine
Volume53
Pages (from-to)28-33
Number of pages6
ISSN1466-853X
DOIs
Publication statusPublished - Jan 2022

Bibliographical note

Copyright © 2021 Elsevier Ltd. All rights reserved.

    Research areas

  • Anterior knee pain, Functional outcome, Knee, Musculoskeletal, Outcome, Pediatrics

ID: 69169489