Knee fractures may involve the long bones of tibia and femur, or the small patellar bone or the fibula.

Sometimes they are hard to spot on X-ray, or may be missed because the doctors are focusing on associated soft tissue injuries. Also some may be avulsion fractures, where tendons have been torn off, taking a fragment of bone with them.

A Primer is an ABC

ABC icon with book

Fracture = bone break

Bone breaks in the knee can be subtle, and take an expert to identify.