Coronoid Process Fracture Wheeless

Description: Classification and treatment:
- type I: fracture of the tip of the coronoid process;
- type II: fracture or comminution constitutes about half of coronoid;
- treated with early motion if no instability is present;
- type III: fracture or comminution constitutes more than half of coronoid;
- almost always involves dislocation (see below);
- fractures near the coronoid base are associated with increased instability due to loss of the stabilizing function of coronoid itself as well as loss of the insertion of the anterior band of the MCL and anterior joint capsule
Wheeless' Textbook of Orthopaedics