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A Geometric Model to Determine Patient-Specific Cup Anteversion Based on Pelvic Motion in Total Hip Arthroplasty
Joint Authors
Seyler, Thorsten M.
Sutter, E. Grant
Wellman, Samuel S.
Bolognesi, Michael P.
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Introduction.
Cup position is critical to stability in total hip arthroplasty and is affected by pelvis motion during positions of daily life.
The purpose of this study was to explicitly define the relationship between sagittal pelvic motion and resultant cup functional anteversion and create a tool to guide the surgeon to a patient-specific intra-operative anteversion.
Materials and Methods.
10,560 combinations of inclination, anteversion, and pelvic tilt were generated using a geometric model.
Resultant functional anteversion was calculated for each iteration and variables were correlated.
An electronic mobile tool was created that compares inputted patient-specific values to population-based averages to determine pelvic positions and dynamics that may lead to instability.
Results.
A third-degree polynomial equation was used to describe the relationship between variables.
The freely downloadable mobile tool uses input from pre-operative plain radiographic measurements to provide the surgeon a quantitative correction to intra-operative cup anteversion based on differences in functional anteversion compared to population-based averages.
Conclusion.
This study provides a geometric relationship between planned cup position, pelvic position and motion, and the resultant functional anteversion.
This mathematical model was applied to an electronic tool that seeks to determine an individualized intra-operative cup anteversion based on measured patient-specific pelvic dynamics.
American Psychological Association (APA)
Sutter, E. Grant& Wellman, Samuel S.& Bolognesi, Michael P.& Seyler, Thorsten M.. 2019. A Geometric Model to Determine Patient-Specific Cup Anteversion Based on Pelvic Motion in Total Hip Arthroplasty. Advances in Orthopedics،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1121591
Modern Language Association (MLA)
Bolognesi, Michael P.…[et al.]. A Geometric Model to Determine Patient-Specific Cup Anteversion Based on Pelvic Motion in Total Hip Arthroplasty. Advances in Orthopedics No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1121591
American Medical Association (AMA)
Sutter, E. Grant& Wellman, Samuel S.& Bolognesi, Michael P.& Seyler, Thorsten M.. A Geometric Model to Determine Patient-Specific Cup Anteversion Based on Pelvic Motion in Total Hip Arthroplasty. Advances in Orthopedics. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1121591
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121591