Tillaux fracture involves which anatomical region?

Tillaux fracture involves which anatomical region?

• A. Proximal tibial physis
• B. Distal tibial physis
• C. Distal tibial metaphysis
• D. Distal fibula

Answer: (B)

Tillaux fracture is a Salter-Harris type III fracture that runs through the distal tibial physis, involving the distal tibial epiphysis and potentially the articular surface. This pattern occurs in adolescents when the growth plate at the distal tibia is still partially open, especially laterally, and an exterior rotation force drives the fracture line across the physis into the epiphysis. That makes the distal tibial physis the correct region. It’s not the proximal tibial physis, not the distal tibial metaphysis, and not the distal fibula.

Tillaux fracture is a Salter-Harris type III fracture that runs through the distal tibial physis, involving the distal tibial epiphysis and potentially the articular surface. This pattern occurs in adolescents when the growth plate at the distal tibia is still partially open, especially laterally, and an exterior rotation force drives the fracture line across the physis into the epiphysis. That makes the distal tibial physis the correct region. It’s not the proximal tibial physis, not the distal tibial metaphysis, and not the distal fibula.