Which fracture is the fracture of the anterolateral aspect of the distal tibia in adolescents before complete closure of the epiphysis?

• A. Jones
• B. Chauffeur's
• C. Tillaux
• D. Barton's

Answer: (C)

In adolescents, the distal tibial growth plate closes in a pattern that leaves the anterolateral part vulnerable as other parts fuse. An external-rotation injury can avulse that anterolateral fragment, with the fracture line extending through the distal tibial epiphysis into the joint. This is a Tillaux fracture, a Salter-Harris type III injury that occurs when the physis is partially closed.

This fits the scenario precisely, whereas the other named fractures involve different bones or contexts—Jones fracture is at the base of the fifth metatarsal, Chauffeur’s fracture involves the radial/styloid region, and Barton’s fracture is a distal radius intra-articular injury.