triplane fracture
Complex pediatric ankle fracture occurring in three anatomical planes during growth plate closure.
Full Definition
A sophisticated fracture pattern unique to adolescents that occurs through three planes: sagittal, coronal, and axial, typically involving the distal tibial physis during its closure period. The fracture results from the asymmetric closure of the growth plate, where the central and medial portions close before the lateral aspect. This creates a weak point susceptible to rotational forces. Triplane fractures require careful evaluation with CT imaging to understand the three-dimensional fracture pattern and may necessitate operative reduction to restore articular congruity and prevent growth disturbances.
Usage
Usage note: Use 'triplane' as one word, not 'tri-plane' or 'tri plane.'
In Context
- "CT imaging revealed a displaced triplane fracture requiring operative intervention." — Radiology report
- "The adolescent's ankle injury was diagnosed as a triplane fracture based on the complex fracture pattern." — Emergency department documentation