an extra-articular fracture at the metadiaphyseal junction of the fifth metatarsal.
Avulsion fracture of the 5th metatarsal styloid
also known as a pseudo-Jones fracture or a dancer fracture, is one of the more common foot avulsion injuries and accounts for over 90% of fractures of the base of the 5th metatarsal.
Stress fracture of the 5th metatarsal
the least common fracture type of the proximal 5th metatarsal, with an avulsion fracture being the most common, followed by Jones fracture. Stress fractures typically occur within 1.5 cm distal to the metadiaphyseal junction.