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Abstract #1592

A novel approach to measure tibial component migration by low field markerless magnetic resonance imaging

Femke F. Schroder1,2, Frank F. J. Simonis2, Dean F.M. Pakvis1, Rianne Huis in't Veld1, and Bennie ten Haken2

1Centre for Orthopaedic Surgery OCON., Hengelo, Netherlands, 2University of Twente, Faculty of Science and technology, Enschede, Netherlands

This study evaluated if low field MRI is a practical alternative for Roentgen stereophotogrammetric-analysis (RSA) to measure prosthetic migration. This also included determining the optimal registration method for this purpose. The detection of migration on low field MRI was sufficient for clinical use in two of the translation directions and all three rotational directions. Manual registration proved to be the most accurate method for markerless MRI (MMRI) estimation of the migration.

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