Responsiveness of the Foot Profile Score in children with hemiplegia

Jennifer McCahill*, Julie Stebbins, Robin J. Prescott, Jaap Harlaar, Tim Theologis

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Background: The Foot Profile Score (FPS) is a single score that summarises foot posture and dynamic foot motion during the gait cycle based on the kinematic data of the Oxford Foot Model. The FPS enables clinicians and researchers to quantify foot abnormalities during gait, to monitor change in foot/ankle motion over time, and to measure the outcome of intervention. With the creation of a new outcome measure, it is important to test its responsiveness in a clinical population for whom it may be sensitive to change. Aim: To evaluate the responsiveness of the FPS in a clinical population following isolated foot and ankle surgery. Methods: Using previous work completed to validate the FPS, we defined the minimal clinically important difference (MCID) for the FPS. Using this MCID, we applied it to a clinical population of 37 children with cerebral palsy, spastic hemiplegia, comparing their FPS before and after foot and ankle surgery. A regression analysis looked at potential relationships between the change in FPS and their pre-operative FPS, age at surgery, and time since surgery. Results: An MCID of 2.4 degrees was calculated through regression analysis. The mean change from the pre-operative FPS to the post-operative FPS was 4.6 (SD 3.7 with a range from −0.1 to 13.4). Twenty-eight children (76%) had a change in their FPS greater than the MCID. A regression analyses only showed a clear regression between pre-operative FPS and change in FPS (R2 = 0.58 p < 0.01).

Original languageEnglish
Pages (from-to)160-163
JournalGait and Posture
Publication statusPublished - 2022

Bibliographical note

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  • Foot Profile Score
  • Foot surgery
  • Hemiplegia
  • Kinematics


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