Category Archives: Metal Ion Info

Cobalt And Chromium Ion Levels Patients with Hip Resurfacing Prosthesis

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Cobalt And Chromium Ion Levels In Patients With a Metal On Metal Hip Resurfacing Prosthesis AAOS San Diego Convention Center, Sails Pavilion  2007 Adult Reconstruction Hip Michael Dunbar, MD, PhD Halifax NS Canada (a) G Yves Laflamme, MD ,FRCS Montreal QC Canada (a) Paul E Beaule, MD Ottawa ON Canada (a,e) Anna Conway, MSc (n)…

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Metal ion levels in the blood of patients after hip resurfacing

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August 2008 Antoniou J, Zukor DJ, Mwale F, Minarik W, Petit A, Huk OL. Lady Davis Institute for Medical Research, SMBD-Jewish General Hospital, 3755, Chemin de la Côte Ste-Catherine, Montréal, QC H3T 1E2, Canada. janton@orl.mcgill.ca BACKGROUND: Metal ion toxicity, metal hypersensitivity, and metal carcinogenicity are causes for concern for patients with metal-on-metal hip replacements. Thus,… Continue reading →

Metal Ions and Correlation Between Inclination of Acetabular Component Study

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Correlation between inclination of the acetabular component and metal ion levels in metal-on-metal hip resurfacing replacement Link  http://www.jbjs.org.uk/cgi/content/short/90-B/10/1291 R. De Haan, MD, Resident in Orthopaedic Surgery1; C. Pattyn, MD, Orthopaedic Surgeon2; H. S. Gill, DPhil, University Lecturer in Orthopaedic Engineering3; D. W. Murray, MD, FRCS(Orth), Professor of Orthopaedic Surgery3; P. A. Campbell, PhD, Associate Professor4;… Continue reading →

Researchers set safe upper limit metal ion levels

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Updated 7/28/2012 Researchers set safe upper limit metal ion levels for metal-on-metal hip resurfacings Orthopedics Today, July 2012 Read complete article by clicking here An award-winning study by researchers from Belgium identified safe upper limits of 4.6 µg/L for chromium and 4.0 µg/L for cobalt in unilateral metal-on-metal hip resurfacing arthroplasties and 7.4 µg/L for… Continue reading →

Allergy to Joint Replacements By Pat Campbell

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By Pat Campbell Hello Pat Walter from Surface Hippies contacted me. I want to make it clear that I am not a qualified pathologist, nor a medical doctor, I am just a researcher with an interest in hip resurfacing and biomaterial compatibility. I run an independent implant retrieval research laboratory within the J. Vernon Luck… Continue reading →

Metal ion levels in young active patients after BHR 4 year study

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Blood and urine metal ion levels in young and active patients after Birmingham hip resurfacing arthroplasty FOUR-YEAR RESULTS OF A PROSPECTIVE LONGITUDINAL STUDY J. Daniel, FRCS, Director of Research1; H. Ziaee, BSc(Hons), Biomedical Scientist1; C. Pradhan, FRCS, Staff Orthopaedic Surgeon1; P. B. Pynsent, PhD, Director2; and D. J. W. McMinn, FRCS, Consultant Orthopaedic Surgeon1 1… Continue reading →

Metal Ions from Metal on Metal Hip Replacement by McMinn at Surface Hippy

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By Dr. McMinn, UK April 14, 2006 14/04/2006 BLOOD LEVELS OF METALS EQUALLY HIGH IN SURFACE REPLACEMENT AND TOTAL HIP REPLACEMENT PATIENTS The modern surface hip replacement devices are always of the type metal-on-metal type. Their bearing surfaces are considerably greater (diameter 52 – 56 mm) then the bearing surfaces of the “conventional” metal-on-metal total… Continue reading →

Metal Ion Testing by Dr. Su 2013

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Updated 4/1/2013 Dr. Su’s Protocol for Metal Ion Testing Metal Ion Testing The testing of metal ion levels after hip resurfacing is controversial, to say the least. Because we are still learning about the metals used in resurfacing, how they are released (and in what quantity), and how the body reacts to these metals, there… Continue reading →

Metal Allergies to Chrome and Cobalt

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Question from poster: Hi, I am 32 years old and had CDH and hip displasia. My blood test revealed that I have a metal allergy, so total hip replacement is the only option for me. jing Answer from Gord Rathbone I had a reaction to both chrome and cobalt, in preliminary skin tests, prior to… Continue reading →

The Influence of Malpositioning of Components in Hip Resurfacing Study by Dr. De Smet et al

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THE INFLUENCE OF MALPOSITIONING OF THE COMPONENTS R. De Haan, MD, Resident in Orthopaedic Surgery1; P. A. Campbell, PhD, Research Scientist2; E. P. Su, MD, Orthopaedic Surgeon3; and K. A. De Smet, MD, Orthopaedic Surgeon4 1 University Hospital Brussels, Laarbeeklaan 101, 1090 Brussels, Belgium. 2 J. Vernon Luck Snr MD, Orthopaedic Research Centre, Orthopaedic Hospital/University… Continue reading →

Metal Allergy Information

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Updated 2/14/2012 Click on title to visit webpage Metal Allergies Discussed by Dr. Jacobs 2012 Metal Allergies to Joint Replacements by Pat Campbell Allergy to Joint Replacements by Koen De Smet and Pat Campbell If I Have a Skin Allergy to Metals, Can I Have a Hip Resurfacing? Metal Allergies to Chrome and Cobalt        Continue reading →

The painful metal-on-metal hip resurfacing study about high metal ions 2009

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Medical Study  2009 **  Updated 6/5/09 Link  http://www.jbjs.org.uk/cgi/content/full/91-B/6/738 **A. J. Hart, FRCSG(Orth), Clinical Senior Lecturer & Honorary Consultant Orthopaedic Surgeon1; S. Sabah, BSc, Medical Student1; J. Henckel, MRCS, Clinical Research Fellow & Specialist Registrar in Orthopaedics1; A. Lewis, FRCS(Orth), Consultant Orthopaedic Surgeon1; J. Cobb, FRCS, Professor of Orthopaedic Surgery1; B. Sampson, MRSC, CChem, Director of… Continue reading →

Chromium and cobalt ion release following the Durom 2007

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Chromium and cobalt ion release following the Durom high carbon content, forged metal-on-metal surface replacement of the hip 2007 P.-A. Vendittoli, MD, MSc, FRCS, Associated Professor of Surgery1; S. Mottard, MD, Orthopaedic Registrar2; A. G. Roy, MD, FRCS, Associated Professor of Surgery1; C. Dupont, MSc, Statistician2; and M. Lavigne, MD, FRCS, Associated Professor of Surgery1… Continue reading →

Metal-Metal Articulation by Dr. Schmalzried

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http://ryortho.com/2013/02/metal-metal-articulation-maloney-v-schmalzried/ CCJR Debate February 10th, 2013 Dr. Schmalzried explained that "The benefits of metal-metal are well known: high stability because of the large diameter, low wear potential, and they are unbreakable. The thin monoblock sockets allow for resurfacing with acetabular bone conservation. One of the risks is a higher loosening rate  …   Another is that… Continue reading →

The exercise-related rise in plasma cobalt levels after hip resurfacing by Mr. Richardson

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The exercise-related rise in plasma cobalt levels after metal-on-metal hip resurfacing arthroplasty 2008 M. Khan, MRCS, PhD Student, Clinical Research Fellow1; J.-H. Kuiper, PhD, Lecturer in Biomechanics1; and J. B. Richardson, MD, FRCS, Professor of Orthopaedics1 1 Institute of Orthopaedics The Robert Jones and Agnes Hunt Orthopaedic Hospital, Gobowen, Shropshire SY10 7AG, UK. Wear of… Continue reading →