Abstract: Introduction: Meniscal or ligamentous injuries of knee joint are common and result in pain, instability and restriction of movement. MRI is used as a screening tool to diagnose or support clinical diagnosis for these injuries prior to offering patients with arthroscopic treatment. However, the sensitivity of MRI for the detection of meniscal injury is not 100%.
Arthroscopy of knee joint can be used for both diagnostic and therapeutic purposes. It is regarded as the gold standard among the investigative modalities. Aim of our study was to correlate radiological and arthroscopic findings of meniscal injuries of knee.
Materials and Methods: Cross-sectional study of 20 patients with history of suspected internal derangement of knee, evaluated with MRI (1.5 T) and correlated with arthroscopy in Mamata Academy of Medical Sciences from May 2019 to November 2020.
Results: The Sensitivity, PPV, Accuracy of MRI scan in detecting ACL injury in our study were 95%, 100% & 95% respectively. Whereas Sensitivity, specificity, PPV, NPV, Accuracy of MRI scan in detecting medial meniscal injury in our study were 77.7%, 81.8%, 81.8%,77.7 & 80.0% respectively. Most common lesions found were ACL and Medial Meniscal tears.
Summary and Conclusion: MRI is a useful non-invasive modality in diagnosing cruciate ligament and meniscal injuries. MRI should be considered as the first line of investigation in all patients with suspected internal derangements of knee. MRI is useful as a pre-operative screening modality, improves the quality of diagnostic and therapeutic arthroscopies and further reduces the morbidity. Arthroscopy is the standard diagnosing tool in all patients with suspected internal derangements of knee should be performed for cases where intervention is required.
