13-year-old female with right knee stiffness and pain after fall. MENISCI: No significant abnormality noted.ARTICULAR CARTILAGE AND BONE: No significant abnormality noted.LIGAMENTS: There is fraying and discontinuity of the anterior cruciate ligament. However, many fibers appear intact. The PCL and LCL appear intact. There is minimal irregularity of the junction of the medial meniscus and MCL inferiorly with a tiny amount of joint fluid seen dissecting superiorly (series #9, image 12).EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Partial tearing of the ACL with mild irregularity of the MCL/medial meniscal interface.