Serum metal levels and bearing surfaces in total hip arthroplasty. Academic Article uri icon

Overview

abstract

  • This study evaluates steady-state serum metal levels in patients with 4 different combinations of fixation modalities, materials, and bearing couples. Forty patients with a minimum of 5 years of follow-up and with well-functioning primary total hip arthroplasty were recruited to have serum metal levels measured. Serum chromium and cobalt levels in the metal-on-metal cohort were significantly higher (P < .05) than the other 3 cohorts. The noncemented ceramic-polyethylene cohort had significantly lower (P < .05) serum chromium levels compared to cemented and noncemented metal-polyethylene cohorts and significantly higher serum titanium levels compared to the cemented metal-polyethylene cohort which had no titanium-containing implants. Debris generated at the metal head/neck modular junction likely accounts for the significantly lower serum chromium concentration in ceramic-polyethylene bearing couples.

publication date

  • September 1, 2006

Research

keywords

  • Arthroplasty, Replacement, Hip
  • Chromium
  • Cobalt
  • Hip Prosthesis
  • Titanium

Identity

Scopus Document Identifier

  • 33747889233

Digital Object Identifier (DOI)

  • 10.1016/j.arth.2006.05.005

PubMed ID

  • 16950061

Additional Document Info

volume

  • 21

issue

  • 6 Suppl 2