MRI Better Than Ultrasound for Detecting Meniscal Tears of the Knee

Background: Since evaluation for possible meniscal tears in the knee is a common clinical situation, determining the most accurate and cost-effective imaging method for this evaluation would be helpful. MRI has been the standard imaging method for this evaluation, but more recent evidence has shown that ultrasound can accurately obtain the necessary information at a lower cost. Objective: To compare the accuracy of MRI versus ultrasound in evaluating the knee for meniscal tears when compared to arthroscopic findings. Design: Prospective study performed between February and October 2024. Participants: Patients with history of suspected meniscal injury in the knee, with no evidence of a fracture. Methods: The knee ultrasound was performed by an experienced radiologist, with a high-frequency linear probe. The echogenicity of the menisci was evaluated using multiple knee position as needed. Meniscal tears were identified based on the finding of a hypoechoic or anechoic cleft. The MRI pro more...