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Rare Variant of Vastus Medialis Detected in vivo by Ultrasound and Confirmed by High-resolution MRI.

Benjafield, A; Howe, FA; Killingback, A; Adds, PJ (2014) Rare Variant of Vastus Medialis Detected in vivo by Ultrasound and Confirmed by High-resolution MRI. Journal of Physical Therapy Science, 26 (1). 165 - 166. ISSN 0915-5287 https://doi.org/10.1589/jpts.26.165
SGUL Authors: Adds, Philip James Howe, Franklyn Arron

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Abstract

[Purpose] This report describes an unusual incidental finding during ultrasound investigation of the vastus medialis muscle. Volunteers underwent ultrasound scanning as part of an on-going investigation into the architecture of the vastus medialis muscle. [Subjects and Methods] The distal thighs of forty-one subjects were scanned using the Philips iU22 US system. An unusual muscle morphology was detected bilaterally in one subject, who then underwent a 3T Magnetic Resonance Imaging (MRI) scan in order to further investigate the muscle morphology. The subject in question was a 32 year-old female who suffers from recurrent bilateral patellar dislocations. [Results] The MRI scan confirmed the ultrasound findings, and indicated the presence of the vastus medialis in two layers, with the VML continuing deep, separate from the VMO. [Conclusion] Although this rare variant has been been reported in previous cadaveric studies, we believe this to be the first report in the literature of this morphology in vivo. The biomechanical implications of this muscle arrangement are unknown, but it may not be without significance that this individual suffers from recurrent patellar dislocations.

Item Type: Article
Additional Information: © 2014 The Society of Physical Therapy Science This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-ncnd) License <http://creativecommons.org/licenses/by-nc-nd/3.0/>.
Keywords: MRI, Ultrasound, Vastus medialis, Rehabilitation, 11 Medical And Health Sciences, MRI, Ultrasound, Vastus medialis
SGUL Research Institute / Research Centre: Academic Structure > Institute of Medical & Biomedical Education (IMBE)
Academic Structure > Institute of Medical & Biomedical Education (IMBE) > Centre for Biomedical Education (INMEBE)
Academic Structure > Molecular and Clinical Sciences Research Institute (MCS)
Academic Structure > Molecular and Clinical Sciences Research Institute (MCS) > Neuroscience (INCCNS)
Journal or Publication Title: Journal of Physical Therapy Science
ISSN: 0915-5287
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Dates:
DateEvent
January 2014Published
PubMed ID: 24567699
Web of Science ID: 24567699
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URI: https://openaccess.sgul.ac.uk/id/eprint/105180
Publisher's version: https://doi.org/10.1589/jpts.26.165

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