
Spiral
Open subtypes (3)
Proximal 1/3
Simple spiral fractures in the proximal third of the femoral shaft are classified as 32A1(a) fractures.

Middle 1/3
Simple spiral fractures in the middle zone of the femoral shaft are classified as 32A1(b) fractures.

Distal 1/3
Simple spiral fractures in the distal third of the femoral shaft are classified as 32A1(c) fractures.