Abstract #1204
Positional Reproducibility of a Displacement Controlled MRI-Compatible Loading Device To Assess In Vivo Articular Cartilage Deformation
Hongsheng Wang 1 , Parina H. Shah 2 , Suzanne Maher 1 , Scott Rodeo 3 , Hollis G. Potter 2 , and Matthew F. Koff 2
1
Department of Biomechanics, Hospital for
Special Surgery, New York, New York, United States,
2
Department
of Radiology and Imaging - MRI, Hospital for Special
Surgery, New York, New York, United States,
3
Sports
Medicine and Shoulder Service, Hospital for Special
Surgery, New York, New York, United States
Articular cartilage deformation within a joint may be
predictive of cartilage health and predisposition to
further degeneration. In this study, we evaluated a
displacement controlled MR compatible loading device to
apply an axial load to the knee joint during MR image
acquisition. The repeatability of knee positioning was
assessed by collecting repeated scans from four healthy
volunteers and was determined to be within 1 mm of
translation and 2 degrees of rotation. It was also
determined that reproducible measurements of cartilage
deformation may be obtained by pre-loading the lower
limb for at least 12 minutes.
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