26th January 2024

A 72-year-old male presents with a painful and swollen left knee for the past few months.

A 72-year-old male presents with a painful and swollen left knee for the past few months. The pain was gradual in onset and is exacerbated by walking and going up the stairs. He also reports morning stiffness lasting for up to 5 minutes with an occasional feeling of locking in the knee. On examination, there is a swollen left knee with crepitus noted. An x-ray is performed.

Which of the following features are least likely to be seen on x-ray?

Select the SINGLE most appropriate option from the list below. Select ONE option only.