Effects of a thermoplastic foot orthosis on patellofemoral pain in a collegiate athlete: a single-subject design

Single-subject, A-B-A-B format. To evaluate the effects of a foot orthosis on pain and function by controlling forefoot pronation. Foot orthoses have been recommended to treat patellofemoral pain by controlling excessive pronation, but few studies have used an experimental design to validate this ap...

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Bibliographic Details
Published in:The journal of orthopaedic and sports physical therapy 1999-06, Vol.29 (6), p.331-338
Main Author: Way, M C
Format: Article
Language:English
Subjects:
Adult
Arthralgia - etiology
Arthralgia - physiopathology
Arthralgia - rehabilitation
Baseball - injuries
Female
Femur - injuries
Humans
Knee Injuries - complications
Knee Injuries - physiopathology
Knee Injuries - rehabilitation
Orthotic Devices
Pain Measurement
Patella - injuries
Range of Motion, Articular
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Summary:Single-subject, A-B-A-B format. To evaluate the effects of a foot orthosis on pain and function by controlling forefoot pronation. Foot orthoses have been recommended to treat patellofemoral pain by controlling excessive pronation, but few studies have used an experimental design to validate this approach. A 19-year-old collegiate softball player had an acute onset of patellofemoral pain in her left knee. A visual analog scale was used to assess pain intensity and a functional index questionnaire (FIQ) was used to measure the subject's perceived functional level. Statistical analysis using the celeration line technique showed significant improvements between all the consecutive baseline and intervention phases of the VAS data and in 7 of the 9 paired phases of the FIQ data. Limiting pronation with a thermoplastic orthosis was an effective treatment for this subject.
ISSN:0190-6011
1938-1344
DOI:10.2519/jospt.1999.29.6.331