Magnetic Resonance Imaging (MRI) for Knee Injuries
Magnetic resonance imaging (MRI) is sometimes used to
help diagnose an anterior cruciate ligament (ACL) injury,
meniscus tear, or other knee injury.
An MRI of the knee provides images of the soft tissues, which include
tendons. Most abnormality in the appearance or shape
of the ACL and other soft tissues can be seen. The image can also show whether
the knee cartilage is torn.
An MRI of the knee is often not needed because a health professional who
is familiar with knee injuries can usually diagnose a severe ACL injury or a
meniscus tear from a thorough medical history and physical examination.
However, MRI is useful in identifying additional injuries to the knee
The decision to have
arthroscopy or further surgery can usually be made
after a physical exam. If arthroscopy is planned, then an MRI is usually not
For more information on MRI, see the topic Magnetic Resonance Imaging
(MRI) of the Knee.
Primary Medical Reviewer
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer
Patrick J. McMahon, MD - Orthopedic Surgery
May 14, 2010
WebMD Medical Reference from Healthwise
May 14, 2010
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