• G Lee, M Hooker, and K Harpstrite.
• Department of Orthopedics, Tripler Army Medical Center, 1 Jarret White Road, Honolulu, HI 96859-5000, USA.
• Mil Med. 2001 Feb 1;166(2):126-31.

AbstractA prospective study was conducted to evaluate the use of magnetic resonance imaging (MRI) by orthopedic surgeons and residents versus the use of MRI by non-orthopedically trained health care providers in diagnosing knee pathology. Fifty patients initially evaluated by members of one of these groups who underwent subsequent knee MRI evaluation were selected to participate. Two orthopedic examiners individually examined all patients, recording clinical diagnosis and the merit of MRI evaluation in each case. Clinical accuracy, sensitivity, and specificity were compared between groups based on MRI findings. Diagnostic accuracy was similar; however, the orthopedic group displayed greater sensitivity, suggesting better clinical assessment. The study examiners observed both groups using MRI equally inappropriately and found 62% of the imaging studies unjustified. We conclude that knee MRI is used inappropriately in the current military setting. An algorithm is proposed to guide the future use of MRI in the diagnosis and management of knee pathology.

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