Association of Total Hip Arthroplasty Flexural Rigidity with Magnetic Resonance Imaging and Histological Findings

Modular connections in total hip arthroplasty (THA) offer surgical advantages, but can contribute to implant fretting and corrosion due to micromotion at the head-stem interface. Previous studies implicated lower flexural rigidity as a key contributing factor to THA corrosion and fretting, but none associated flexural rigidity with direct histological evaluation or magnetic resonance imaging (MRI) outcomes. The purpose of this study was to determine how implant flexural rigidity is associated with MRI imaging metrics and histopathological outcomes in patients who have a failed THA.

Source: The Journal of Arthroplasty - February 28, 2024 Category: Orthopaedics Authors: Sara E. Sacher, Elexis C. Baral, Timothy Wright, Thomas W. Bauer, Qian Li, Douglas Padgett, Hollis G. Potter, Matthew F. Koff Source Type: research