Avulsions around the knee portend instability.

Bony avulsions about the knee are common injuries seen in the emergency room. Unawareness of characteristic radiographic patterns of injury that herald potential instability and require further workup can result in significant morbidity. We present a radiographic pictoral discussion on bony avulsions and associated soft tissue complex injuries on MRI. Emphasis is on injuries leading to instability, and often surgical management. MRI is a useful imaging tool for screening and surgical planning in this setting of patients.