Season 8 Case 10

History: foot pain

Answer: Jones Fracture + “Pseudo Jones” fracture 

Jones fx = extraarticular fracture of the proximal 5th metatarsal (usually 1-2cm distal to the medial articular surface)

“Pseudo” Jones (probably better called “avulsion” fracture) = INTRAarticular fx that appears to avulse the proximal-lateral corner (where the peroneus brevis inserts).  Also common called a “dancer’s fracture” 

ref: 

Jones fx: https://radiopaedia.org/articles/jones-fracture-1?lang=us

Avulsion fx: https://radiopaedia.org/articles/avulsion-fracture-of-the-5th-metatarsal-styloid?lang=us

My go to mental picture is: