A member asked:

Could you tell me what happens if my friend has a metal knee replacement and does an mri?

4 doctors weighed in across 3 answers
Dr. Christopher Ferguson answered

Specializes in Orthopedic Surgery

Safe: Patients can have an MRI after total knee replacement.

Answered 6/10/2014

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Perfectly safe: No issues with MRI and knee or hip replacement, except that if the MRI is of the area that has the replacement there will be some distortion of the image due to the metal.

Answered 6/10/2014

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Dr. Peter Nefcy answered

Specializes in Radiology

The MRI will heat up the body slightly and can created focal hot spots around all metals. With joint replacements that have been recently performed, there are concerns for damage of the healing interfaces, which delays or adversely effects healing. MRI should be avoided for 2 months or so to allow for healing. And of course, any MRI of a joint which has been replaced with metal will be limited.

Answered 4/12/2021

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