Multiacquisition Variable-Resonance Image Combination Magnetic Resonance Imaging Used to Study Detailed Bone Apposition and Fixation of an Additively Manufactured Cementless Acetabular Shell.

ABSTRACT:

Background

The ability to utilize magnetic resonance imaging (MRI) to assess bony fixation in 3 dimensions may allow a better understanding of the implant design and bony integration. We hypothesized that a new 3-dimensionally printed cementless highly porous acetabular component (Stryker Trident II Tritanium^TM) would show better fixation than an earlier cup from the same manufacturer as assessed by the noninvasive technique of multispectral MRI.

Methods

Multiacquisition variable-resonance image combination selective metal suppression MRI was performed in 19 patients implanted with a new 3-dimensionally printed cup and 20 patients who had received a previous-generation cup from the same manufacturer at 1-year follow-up. Each cup was graded globally as well as by 9

SUBMITTER: Alamanda VK 

PROVIDER: S-EPMC7475047 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature