Co-relation of Mri and Arthroscopy in Soft Tissue Injuries of Knee Joint

Introduction: Knee is most frequently injured joints among because of its anatomical structure and its exposure to external forces and the functional demands placed on it. Magnetic resonance imaging (MRI) helped in the diagnosis of intra articular soft tissue injury without arthroscopy. Advantages over MRI are non-invasive, minimal patient discomfort and easy visibility of posterior cruciate ligaments. . So comparison and correlation of MRI and arthroscopy becomes important as it can help us diagnose and treat lesions of knee in a better way. Material and method: The study was a prospective study correlating the MRI findings with that of arthroscopy in knee injuries after proper clinical examination. This study consist of 30 patients of soft tissue injury of the knee joint who presented 6 weeks post injury with age group 1550 years. Each MRI was performed using the standard MR protocol in 1.5 Tesla with proper patient positioning in surface coils after taking informed consent. Arthroscopy was performed by senior consultants under regional with patient in supine position and lateral post around upper thigh. Results: The study shows that, the sensitivity of MRI for ACL injuries was 95.2% with the specificity of 42.2%. A positive predictive values of 74.1% and negative predictive value of 66.7%. With regards to the medial meniscus injury the sensitivity of MRI was found to be 87.5% and specificity of 85.1%. Positive predictive value of 63.6% and negative predictive value of 95.8%.