Serum Metal Ions in Contemporary Monoblock and Modular Dual Mobility Articulations.

ABSTRACT:

Background

Questions exist about the release of cobalt and chromium ions from dual mobility (DM) cups. Modular implants, with potential backside wear between the cobalt-chromium liner and titanium cup, are of particular concern. This study compares the metal ion profile of patients with contemporary monoblock and modular DM articulations from two commonly used designs.

Methods

Cobalt and chromium serum levels were measured one year after surgery in a prospective cohort of patients undergoing total hip arthroplasty with a DM construct. Ion levels were detected above 1 μg/L. Clinical and surgical data were correlated with the ion levels for analysis.

Results

Overall, 29% of the patients had levels above 1 μg/L of either ion. More patients with modular cups had detectabl

SUBMITTER: Greenberg A 

PROVIDER: S-EPMC8567330 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature