Diagnosis of meniscal tears using high-resolution computed tomography. Correlation with arthroscopy.

Manco, Lawrence G.; Kavanaugh, J H; Lozman, Jeffrey; Colman, Neil; Bilfield, B S; Fay, Jakob

doi:10.2106/00004623-198769040-00004

Cited by 12 publications

(1 citation statement)

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“…[6][7][8] Clinical tests may be confusing, and delay in diagnosis can result in social and economic problems and sometimes in a worse prognosis. [8][9][10] Therefore, complementary diagnostic tools are often necessary, [11][12][13][14] mainly when suspicion of multiple lesions exists. 15,16 Arthroscopy is considered as "the gold standard" for diagnosis of traumatic intraarticular knee lesions, having an accuracy as high as 95% to 98%.…”

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Accuracy of Magnetic Resonance in Identifying Traumatic Intraarticular Knee Lesions

Vaz

Camargo

Santana

et al. 2005

Clinics

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PURPOSE:To evaluate the diagnostic accuracy of magnetic resonance imaging of the knee in identifying traumatic intraarticular knee lesions. METHOD: 300 patients with a clinical diagnosis of traumatic intraarticular knee lesions underwent prearthoscopic magnetic resonance imaging. The sensitivity, specificity, positive predictive value, negative predictive value, likelihood ratio for a positive test, likelihood ratio for a negative test, and accuracy of magnetic resonance imaging were calculated relative to the findings during arthroscopy in the studied structures of the knee (medial meniscus, lateral meniscus, anterior cruciate ligament, posterior cruciate ligament, and articular cartilage). RESULTS: Magnetic resonance imaging produced the following results regarding detection of lesions: medial meniscus: sensitivity 97.5%, specificity 92.9%, positive predictive value 93.9%, positive negative value 97%, likelihood positive ratio 13.7, likelihood negative ratio 0.02, and accuracy 95.3%; lateral meniscus: sensitivity 91.9%, specificity 93.6%, positive predictive value 92.7%, positive negative value 92.9%, likelihood positive ratio 14.3, likelihood negative ratio 0.08, and accuracy 93.6%; anterior cruciate ligament: sensitivity 99.0%, specificity 95.9%, positive predictive value 91.9%, positive negative value 99.5%, likelihood positive ratio 21.5, likelihood negative ratio 0.01, and accuracy 96.6%; posterior cruciate ligament: sensitivity 100%, specificity 99%, positive predictive value 80.0%, positive negative value 100%, likelihood positive ratio 100, likelihood negative ratio 0.01, and accuracy 99.6%; articular cartilage: sensitivity 76.1%, specificity 94.9%, positive predictive value 94.7%, positive negative value 76.9%, likelihood positive ratio 14.9, likelihood negative ratio 0.25, and accuracy 84.6%. CONCLUSION: Magnetic resonance imaging is a satisfactory diagnostic tool for evaluating meniscal and ligamentous lesions of the knee, but it is unable to clearly identify articular cartilage lesions.

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