Stewart classification for proximal 5th metatarsal fractures
The Stewart classification for proximal fifth metatarsal fractures is based upon fracture location and morphology. It is divided into five types.
- extra-articular transverse or oblique fracture between base of 5th metatarsal and diaphysis (Jones fracture)
- avulsion fracture of base of 5th metatarsal with intra-articular extension
- may have one or two fracture lines
- avulsion fracture of styloid process of 5th metatarsal
- fracture line usually makes a right angle to the long axis of the metatarsal base
- intra-articular comminuted fracture
- usually occurs in children
- partial epiphyseal avulsion with or without fracture line
- can be classified as Salter-Harris I type fracture
Other classification systems
- 1. Mehlhorn AT, Zwingmann J, Hirschmüller A, Südkamp NP, Schmal H. Radiographic classification for fractures of the fifth metatarsal base. Skeletal radiology. 2014 Apr 1;43(4):467-74.
- 2. Zwitser EW, Breederveld RS. Fractures of the fifth metatarsal; diagnosis and treatment. Injury. 2010 Jun 30;41(6):555-62.