Cobalt poisoning in knee replacements

Stem Cell Therapy and Platelet Rich Plasma Therapy when to use bothProlotherapy vs. Surgery

Ross Hauser, MD
Doctors in Finland have released a new troubling study on the release of metal debris from knee replacement hardware. They note:

If you are looking to avoid knee surgery, see our main page Prolotherapy for knee pain for an alternative to surgery.

(The Finnish researchers) determined the levels of metal ions in the blood of 22 patients with metal-on-metal hinge total knee arthroplasty. and the rate of revision (repair surgery) due to adverse patient’s reactions to metal debris in patients treated with metal-on-metal hinge total knee arthroplasty.


And if you are sensitive to cobalt and other metals? Then why get a cobalt replacement?


If you have allergy, imagine carrying that around in your knee.

Doctors in Germany studied patients to determine the prevalence of sensitisation to chromium, cobalt, nickel, or a cement component in patients who received joint replacement surgery.

In this curious study, the doctors “selected patients with a pre-operative known sensitisation to chromium, cobalt, nickel, or a cement component for a post-operative allergic reaction. All patients who received revision surgery because of a potential allergic reaction were followed up post revision surgery.”

Failed Joint Replacement Components Cause Cancer


November 3, 2016: (National Institute of Health) Seven substances added to 14th Report on Carcinogens

*It does not include vitamin B-12, because cobalt in this essential nutrient is bound to protein and does not release cobalt ions.

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1 Laitinen M, Nieminen J, Reito A, et al. High blood metal ion levels in 19 of 22 patients with metal-on-metal hinge knee replacements. Acta Orthop. 2017 Jan 26:1-6. doi: 10.1080/17453674.2017.1283846.[Pubmed]

2 Guenther D, Thomas P, Kendoff D, Omar M, Gehrke T, Haasper C. Allergic reactions in arthroplasty: myth or serious problem? Int Orthop. 2016 Feb;40(2):239-44. doi: 10.1007/s00264-015-3001-6. Epub 2015 Nov 2.[Pubmed]

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