Search for: [Abstract = "The aim of the study was to assess the value of Magnetic Resonance Imaging \(MRI\) in diagnosing traumatic injury to the structures of the knee joint, in comparison to the results of arthroscopy, as a reference method. The group of 128 patients after knee trauma was examined, 44% females and 56% males, aged between 12.9 and 62.5 years. MRI examinations were performed by 1.5 Tesla scanner. The presence of injury was analyzed in medial \(MM\) and lateral \(LM\) menisci, in anterior \(ACL\) and posterior \(PCL\) cruciate ligaments and in articular cartilage \(AC\). The most frequently diagnosed in MRI were MM \(79%\) and ACL \(65%\) lesions and in arthroscopy \- ACL \(63%\) and patellar cartilage \(52%\) lesions. The statistical significance of presence of injury in MRI and arthroscopy was estimated by the χ2 test. The diagnostic efficacy indices of the MRI were calculated. A high negative predictive value for all joint structures \(90\-100%\) was found, which means high ability of the MRI to rule out the damage. The sensitivity in diagnostics of ACL injuries was 89%, PCL \- 100%, MM \- 85%, LM \- 69% and 10\-25% for AC. The specificity was 89% for ACL, PCL \- 87%, MM \- 79%, LM \- 90%, AC \- 93\-96%. There were no statistically significant differences between the indicators of the efficacy of MRI in recent and inveterate injuries, and also with increased delay between the examinations. The MRI is an effective method for diagnosing traumatic lesions of the knee joint. Its high ability to detect the normal states allows to avoid unnecessary arthroscopy."]

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