Question

A 30-year-old man presents with acute pain and swelling of the right knee after playing football. There is joint effusion but no instability. What investigation is most helpful initially?

Accepted Answer

Plain X-ray of the knee

Answer

MRI of the knee for all soft-tissue injuries

Answer

Ultrasound of the knee

Answer

CT scan of the knee

Answer

No imaging is ever required in acute knee injuries

Practice question

A 30-year-old man presents with acute pain and swelling of the right knee after playing football. There is joint effusion but no instability. What investigation is most helpful initially?