Knee - McMurray's Test

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The McMurray test is a test used to determine the presence of a meniscal tear.  While the patient is supine on the exam table the examiner grasps the knee, placing one hand over the top of the knee with her thumb over one joint line and her index and middle finger over the opposite joint line.  The examiner begins with the knee in full flexion and then medially and laterally rotates the tibia while paying attention for an audible click.  The examiner then laterally rotates the tibia and extends the knee beyond 90 degrees.  An audible click while preforming this maneuver can indicate a torn medial meniscus.  To examine the lateral meniscus the examiner will return the knee to full flexion and apply a medial rotation to the tibia prior to extending the knee once again.