Magnetic Resonance Imaging for the Diagnosis and Treatment of Anterior Cruciate Ligament Tears

The high sensitivity and specificity of magnetic resonance imaging in diagnosis of anterior cruciate ligament (ACL) tears makes it the “gold standard” imaging modality in the diagnosis of ACL injuries. In this chapter, we discuss the imaging appearances of an intact ACL, as well as the primary and secondary imaging signs of an ACL tear. We also discuss the imaging appearances of partial ACL injuries and associated injuries identified with ACL tears.