Is it okay for someone who has a metal knee replacement and to have an mri?

It depends: Hi, we image patients with knee replacements tka all of the time by mri. If the images is of the knee itself, there will be artifact that can be minimized if the tech and radiologist are aware prior to beginning the exam. In general, we do not like to do MRI on anyone who has had recent surgery. If the knee was replaced more than 6 weeks ago, no problem.

Not: Clinical magnetic resonance imaging (MRI) uses the magnetic properties of hydrogen and its interaction with both a large external magnetic field and radiowaves to produce highly detailed images of the human body, so we can not use it with metal knee replacement.

Yes: An MRI study can be performed on any area of the body with today's knee replacements. There should be no problems for most areas of the body. However, for the knee that has had this surgery, the metal will create artifacts and distortion of the images, and limit the evaluation. A scan of this knee may or may not be helpful, but you cannot tell without performing the scan. Discuss with your Doctor.