Figure 3From: How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations? Axial PD-weighted TSE MRI of a 29-year-old male with a first LPD. A defect of > 50% of the retropatellar cartilage is depicted (white arrow). This finding is defined as a grade 3 disorder.Back to article page