Can a safe level for metal ions in patients with metal-on-metal total hip arthroplasties be determined?

2004 ◽  
Vol 19 (8) ◽  
pp. 71-77 ◽  
Author(s):  
Steven J. MacDonald
Keyword(s):  
Metal Ions ◽  
Total Hip ◽  
Safe Level ◽  
Metal On Metal ◽  
Hip Arthroplasties

scholarly journals Metal‐on‐metal bearings in total hip arthroplasties: Influence of cobalt and chromium ions on bacterial growth and biofilm formation

2008 ◽  
Vol 88A (3) ◽  
pp. 711-716 ◽  
Author(s):  
Anton H. Hosman ◽  
Henny C. van der Mei ◽  
Sjoerd K. Bulstra ◽  
Henk J. Busscher ◽  
Daniëlle Neut
Keyword(s):  
Bacterial Growth ◽  
Biofilm Formation ◽  
Total Hip ◽  
Chromium Ions ◽  
Metal On Metal ◽  
Hip Arthroplasties

scholarly journals No association between serum metal ions and implant fixation in large-head metal-on-metal total hip arthroplasty

2014 ◽  
Vol 85 (4) ◽  
pp. 355-362 ◽  
Author(s):  
Mette Holm Hjorth ◽  
Kjeld Søballe ◽  
Stig Storgaard Jakobsen ◽  
Nina Dyrberg Lorenzen ◽  
Inger Mechlenburg ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Metal Ions ◽  
Hip Arthroplasty ◽  
Implant Fixation ◽  
Total Hip ◽  
Large Head ◽  
Metal On Metal

Higher Blood Cobalt and Chromium Levels in Patients With Unilateral Metal-on-Metal Total Hip Arthroplasties Compared to Hip Resurfacings

2016 ◽  
Vol 31 (6) ◽  
pp. 1261-1266 ◽  
Author(s):  
Olli S. Lainiala ◽  
Teemu P.S. Moilanen ◽  
Alister J. Hart ◽  
Heini S.A. Huhtala ◽  
Shiraz A. Sabah ◽  
...  
Keyword(s):  
Total Hip ◽  
Metal On Metal ◽  
Hip Arthroplasties

Blood Metal Ion Levels Have Limited Utility in the Surveillance of Asymptomatic Large-Head Metal-on-Metal Total Hip Arthroplasties

2017 ◽  
Vol 32 (12) ◽  
pp. 3685-3688 ◽  
Author(s):  
Manish Kiran ◽  
Catherine Armstrong ◽  
Deepak Shivarathre ◽  
Viju K. Peter
Keyword(s):  
Metal Ion ◽  
Total Hip ◽  
Large Head ◽  
Metal On Metal ◽  
Hip Arthroplasties

scholarly journals Does modularity of metal-on-metal hip implants increase cobalt: chromium ratio?

2019 ◽  
pp. 112070001987363
Author(s):  
Kevin C Ilo ◽  
Karim Aboelmagd ◽  
Harry S Hothi ◽  
Asaad Asaad ◽  
John A Skinner ◽  
...  
Keyword(s):  
Metal Ion ◽  
Hip Implants ◽  
Cobalt Chromium ◽  
Metal Debris ◽  
Material Loss ◽  
Total Hip ◽  
Modular Stem ◽  
Metal On Metal ◽  
Hip Replacements ◽  
Hip Arthroplasties

Background: Blood metal ion levels are used in the surveillance of metal-on-metal (MoM) hip implants. Modular implants contain an extra source of metal debris that may affect the ratio of metal ions in the blood. Methods: This was a retrospective study of 503 patients with hip replacements made by a single manufacturer (Smith & Nephew, Warwick, UK) with the same bearing surface. There were 54 total hip arthroplasties, 35 Birmingham Mid-Head Resections and 414 hip resurfacings. Whole blood metal ion levels and their ratios were analysed to investigate the effect of a modular junction. Results: The cobalt:chromium ratios were greater in the total hip arthroplasty group (mean 2.3:1) when compared to the resurfacings group (mean 1.3:1, p = <0.05) and Birmingham Mid-Head Resection group (mean 1.1:1, p = 0.11). Conclusions: This study demonstrated a trend for a higher cobalt:chromium ratio in patients with MoM total hip replacement that may be due to metal debris from the modular stem-head junction. Further work is required to correlate clinical data with retrieval analysis to confirm the effect of taper material loss on the cobalt:chromium ratio.

Aseptic Loosening of Metal-on-Metal (MOM) Total Hip Arthroplasties (THA) with Large-Diameter Heads

2013 ◽  
pp. 141-151
Author(s):  
Christoph H. Lohmann ◽  
G. Singh ◽  
G. Goldau ◽  
T. Müller ◽  
B. Feuerstein ◽  
...  
Keyword(s):  
Aseptic Loosening ◽  
Large Diameter ◽  
Total Hip ◽  
Metal On Metal ◽  
Hip Arthroplasties
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