Patellar Tracking Measures Correlate with Vastus Medialis Onset Delay in Maltracking Patellofemoral Pain Subjects 1

Content Provider	Semantic Scholar
Author	Pal, Saikat Draper, Christine E. Fredericson, Michael Gold, G. E. Delp, Scott L. Beaupré, Gary S. Besier, Thor F.
Copyright Year	2010
Abstract	Patellofemoral pain (PFP) syndrome accounts for a large fraction of knee disorders seen in sports medicine clinics [1]. A possible mechanism of pain is elevated stress at the cartilage-bone interface due to excessive lateral tracking of the patella. Delayed onset of vastus medialis (VM) activation in comparison to vastus lateralis (VL) is reported to cause lateral tracking of the patella [2], but evidence relating muscle activation delay to patellar maltracking is sparse. Broad categorization of diverse PFP subjects into a single group may be insufficient to explain the variability observed in VM onset delay [2]. The purpose of this study was to determine if precise classification of PFP subjects based on maltracking measures would lend insight into the effect of VM onset delay on maltracking of the patella. We hypothesized that two measures of patellar tracking, patellar tilt and bisect offset, correlate with VM onset delay in PFP subjects classified as maltrackers.
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Alternate Webpage(s)	http://www.asbweb.org/conferences/2010/abstracts/119.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article