Simple fracture, oblique
These are simple diaphyseal fractures of the tibia, with an oblique fracture line, located at whatever level of the diaphysis of the tibia.
An oblique fracture line is defined by its inclination equal to or greater than 30º with respect to the perpendicular to the axis of the tibia.
This fracture is classified as an AO/OTA 42A2 fracture.
X-rays taken from Orozco R et al, (1998) Atlas of Internal Fixation. Used with kind permission.