A member asked:

Can you have mri after total knee due to metal components?

8 doctors weighed in across 5 answers
Dr. Gerald Mandell answered

Specializes in Nuclear Medicine

Sometimes: Metal does cause artifactual density on mri. Software developed to correct for metal artifact that provide high-resolution images with superb bone and soft tissue contrast. Have to inquire from facility performing study whether metal correction software available with mr unit. Of course hardware has to be made of titanium and not have magnetic properties.

Answered 3/31/2017

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MRI: You may have a MRI in other areas of your body, but a MRI about your replaced knee would be affected by the metal from the prosthesis.

Answered 6/10/2014

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Dr. David Fisher answered

Specializes in Orthopedic Surgery

Yes: You can have an MRI of other parts of the body after a total knee replacement. Imaging the leg near the implant is more challenging due to the metal artifact, but it should not affect other parts of the body. Be sure to report the tka surgery to the center performing the mri.

Answered 6/10/2014

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Dr. Brian Sabb answered

Specializes in Sports Medicine

Yes!: Hi, You definitely can get an MRI. If you are asking about MRI of the knee with the TKA, then the answer is still yes. Usu MRI after TKA is going to be ordered by a knee specialist that is looking for specific pathologies after the surgery. The radiologist needs to take the TKA into consideration and employ a specialized artifact reduction protocol. You do need to find the right rad and rad center

Answered 3/1/2018

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Dr. Peter Nefcy answered

Specializes in Radiology

Yes: An MRI can be performed at any site in the body after total knee replacement. The metal has special metallic properties and does not interact with the scanner directly . You can also have an MRI of the knee after knee surgery, but the study will be limited due to image artifacts and distortions. In this situation, important information can still be seen at times despite the distortions.

Answered 1/3/2018

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