MRI evaluation of internal derangement of knee with arthroscopic correlation
Journal Title: Journal of the Indian Medical Association - Year 2018, Vol 116, Issue 3
Abstract
Since the introduction to musculoskeletal imaging in the early 1980, MRI has been revolutionized as a diagnostic imaging tool for the evaluation of internal joint structures of the knee like menisci, cruciate ligaments and articular cartilage. The aim of the present study was to evaluate the Clinical efficacy of magnetic resonance imaging (MRI) in internal derangement of the knee using arthroscopy as a gold standard. This was a prospective study conducted on 50 patients, referred to Department of Radiodiagnosis, suspected to have internal derangement of knee. All the patients underwent MRI and followed up with arthroscopy. The MRI sequences included sagittal & PD fat sat, sagittal T1 & T2W FSE images, coronal STIR images and axial T2W FSE images. The result of the study showed that the sensitivity, specificity, positive & negative predictive values and accuracy of MRI for detecting menisci and ligament tears were respectively as follows: 86%, 82%, 86%, 82% & 84% for medial meniscus; 82%, 79%, 67%, 90% & 80% for lateral meniscus; 91%,, 89%, 93%, 84% & 90% for anterior cruciate ligament; 75%, 98%, 75%., 98% & 96% for posterior cruciate ligament. MRI also identified injuries that could not be assessed on arthroscopy including 15 medial collateral ligament tears, 10 lateral collateral ligament tears and 29 bone bruises. Thus it can be concluded that MRI can be used as a first line investigation in patients with suspected internal derangement of knee before proceeding for arthroscopy.
Authors and Affiliations
Sasmita Parida, Jayashree Mohanty, Snigdha Pattanaik
Keywords
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