CASE
A 39-year-old woman presented in the emergency department (ED) with complaints of a fall and consequent knee pain. She stated that she had landed on her right knee and had only mild discomfort. She had no previous history of trauma or surgery. She walked into the ED with a limp but was able to bear weight.
On physical examination, there was no gross deformity of the right knee. Tenderness was noted anteriorly at the knee joint, inferior to the patella. Range of motion was normal. There was no laxity, clicking, or locking. No effusion was observed.
What does the radiograph of the right knee show (see Figure 1)?
