D
Douglas R. Pedersen
Researcher at University of Iowa
Publications - 146
Citations - 8816
Douglas R. Pedersen is an academic researcher from University of Iowa. The author has contributed to research in topics: Finite element method & Femoral head. The author has an hindex of 49, co-authored 146 publications receiving 8315 citations. Previous affiliations of Douglas R. Pedersen include St Mary's Hospital & University of Iowa Hospitals and Clinics.
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Journal ArticleDOI
A comparison of the accuracy of several hip center location prediction methods
TL;DR: The purpose of this study was to estimate the accuracy with which this rotational method could estimate hip center location in a series of live subjects, and compare that to the accurary that could be obtained by the methods of Andriacchi's group and Tylkowski's group in the same subjects.
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Prediction of hip joint centre location from external landmarks
TL;DR: A more accurate method of estimating the 3-D HJC location combined a modification of Andriacchi's approach with a modifications of Tylkowski's approach (estimating frontal plane location of HJC), and could predict the H JC location in adults to within 2.6 cm of the true location with 95% certainty.
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The sensitivity of muscle force predictions to changes in physiologic cross-sectional area.
TL;DR: Nonlinear optimization techniques were used to predict 47 muscle forces and hip contact forces in a living subject and the three solutions were qualitatively similar but at times a predicted muscle force could vary as much as two to eight times, in contrast, the joint force solutions were within 11% of each other and much less variable.
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A Model of Lower Extremity Muscular Anatomy
Richard A. Brand,Roy D. Crowninshield,C. E. Wittstock,Douglas R. Pedersen,Charles R. Clark,F. M. van Krieken +5 more
TL;DR: A scaling scheme is presented which substantially reduces errors in muscle force predictions and the inherent limitations of developing a straight line muscle model include right-to-left biological variations and/or marking errors.
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Total hip acetabular component position affects component loosening rates.
TL;DR: Long-term follow-up studies using logistical regression analysis demonstrate significantly higher rates of femoral loosening with acetabular components placed in a superior and lateral (i.e., nonanatomic) position, compared with acetABular componentsplaced in a nearly anatomic position.