Fig. 1.

Tibial spine avulsion and Segond fracture. The arrow points to Segond fracture in each image. a Plain radiograph of a 16-year-old boy with a combination of injuries suggesting a pivot-shift impact mechanism. ACL was intact at surgery. b Coronal T1-weighted MRI in a different child also showing a tibial spine avulsion. c Segond fracture on coronal proton density (PD) MRI of a 15-year-old boy with ACL rupture. Note the lack of adjacent oedema, which is typical; these fractures are often subtle on MRI. Note also the fragment’s capsular attachment to the anterior oblique band of the lateral collateral ligament complex