MRI
There is a vertical fracture of the medial aspect of the patella with marrow oedema as well as oedematous infiltration of the anterior prepatellar soft tissue. Mild joint effusion is noted
Quadriceps and patellar tendons, as well as the medial and lateral patellar retinacula, are of normal thickness and signal.
Menisci, collateral and cruciate ligaments are intact.