Patellar maltracking is prevalent among patellofemoral pain subjects with patella alta: An upright, weightbearing MRI study

The purpose of this study is to determine if patellar maltracking is more prevalent among patellofemoral (PF) pain subjects with patella alta compared to subjects with normal patella height. We imaged 37 PF pain and 15 pain free subjects in an open‐configuration magnetic resonance imaging scanner wh...

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Bibliographic Details
Published in:Journal of orthopaedic research 2013-03, Vol.31 (3), p.448-457
Main Authors: Pal, Saikat, Besier, Thor F., Beaupre, Gary S., Fredericson, Michael, Delp, Scott L., Gold, Garry E.
Format: Article
Language:English
Subjects:
Adult
Arthralgia - epidemiology
Arthralgia - pathology
Arthralgia - physiopathology
Biomechanical Phenomena - physiology
bisect offset
Female
Humans
Knee Joint - pathology
Knee Joint - physiopathology
Magnetic Resonance Imaging - methods
Male
Patella - pathology
Patella - physiopathology
patella alta
patella height
patella tilt
patellar maltracking
patellofemoral pain
Posture - physiology
Prevalence
Weight-Bearing - physiology
Young Adult
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Summary:The purpose of this study is to determine if patellar maltracking is more prevalent among patellofemoral (PF) pain subjects with patella alta compared to subjects with normal patella height. We imaged 37 PF pain and 15 pain free subjects in an open‐configuration magnetic resonance imaging scanner while they stood in a weightbearing posture. We measured patella height using the Caton–Deschamps, Blackburne–Peel, Insall–Salvati, Modified Insall–Salvati, and Patellotrochlear indices, and classified the subjects into patella alta and normal patella height groups. We measured patella tilt and bisect offset from oblique‐axial plane images, and classified the subjects into maltracking and normal tracking groups. Patellar maltracking was more prevalent among PF pain subjects with patella alta compared to PF pain subjects with normal patella height (two‐tailed Fisher's exact test, p 
ISSN:0736-0266
1554-527X
DOI:10.1002/jor.22256