Anatomy of the knee joint.- MRI pulse sequences.- Anterior cruciate ligament.- Posterior cruciate ligament.- Medial collateral ligament.- Lateral supporting structures including lateral collateral ligament.- Meniscal lesions.- Fractures, subluxations and muscular injuries.- Knees of the infants and adolescents.- Degeneration and necrosis.- Lesions of the synovium and plica.- Cyst-like lesions of the knee.