Reliability of magnetic resonance imaging of the traumatic knee as determined by arthroscopy.
BACKGROUND
Magnetic resonance imaging (MRI) has become an important modality in the assessment of traumatic soft-tissue injury of the knee.


METHODS
This prospective study was performed to evaluate the accuracy of MRI used at Wellington Hospital--by comparing the result of the scans of 67 patients with subsequent arthroscopy.


RESULTS
The imaging studies provided a diagnostic accuracy of 90% for the medial meniscus, 82% for the lateral meniscus, 94% for the anterior cruciate ligament, and 96% for the posterior cruciate. The sensitivity was 87% for the medial meniscus, only 46% for the lateral meniscus, 92 % for the anterior cruciate, and 80% for the posterior cruciate. The specificity was relatively high at 92%, 91%, 94%, and 97%, respectively.
Winters
Keith
K
Department of Orthopaedic Surgery, Capital and Coast Health, Wellington, New Zealand. email: keithandsarah_winters@hotmail.com
Tregonning
Russell
R
D000293:Adolescent; D000328:Adult; D000368:Aged; D016118:Anterior Cruciate Ligament / Q000473:pathology; D000070598:Anterior Cruciate Ligament Injuries; D001182:Arthroscopy; D002648:Child; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000175:diagnosis*; D007719:Knee Joint / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008592:Menisci, Tibial / Q000473:pathology; D008875:Middle Aged; D016119:Posterior Cruciate Ligament / Q000293:injuries / Q000473:pathology; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D000070600:Tibial Meniscus Injuries