Right knee instability MENISCI: There is complex tearing involving the entirety of the lateral meniscus with only a remnant of the posterior horn noted. There is subluxation into the lateral gutter. The medial meniscus is intact.ARTICULAR CARTILAGE AND BONE: Increased marrow signal is noted in the lateral tibial plateau without evidence of depression. There is associated marrow edema within the anterior aspect of the lateral tibial plateau as well as a portion of the medial femoral condyle. Similar increased marrow signal is noted in the anterior aspect of the medial femoral condyle also without evidence of depression. There is severe articular cartilage loss of the lateral tibial plateau with moderate changes also noted in the femoral condyle. Additionally, there is mild cartilaginous fraying of the patellofemoral compartment (particularly the lateral facet) with associated cystic changes within the patellar articulation.LIGAMENTS: No significant abnormality noted. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1.Complex tearing of the lateral meniscus with subluxation into the lateral gutter. The medial meniscus is intact.2.Severe articular cartilage loss of the lateral compartment with milder changes noted in the patellofemoral compartment. There is associated degenerative marrow within the lateral compartment as well as anterior aspect of the tibial plateau.3.Moderate joint effusion.