Triplane fracture

Case contributed by Dr Yasser Asiri


Twist injury, for assessment of fracture extension.

Patient Data

Age: 15 years
Gender: Male

Vertical fracture line through the distal tibial epiphysis abutting the articular surface.  A horizontal fracture line through the lateral aspect of the growth plate and on the lateral view, an oblique fracture line through the metaphysis extending cranially into the diaphysis.

This is all in a pattern consistent with triplane fracture. 


The fracture is better elucidated on the CT scan of the ankle.  There is no displacement or intra-articular fragments. 

Case Discussion

The case illustrates the typical imaging appearance of triplane fracture. It is considered a Salter-Harris type IV injuries with three fracture planes; a vertical fracture of the epiphysis, a horizontal fracture within the growth plate, and an oblique fracture of the metaphysis.

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Case information

rID: 64779
Published: 11th Dec 2018
Last edited: 26th Nov 2020
Inclusion in quiz mode: Included

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