Trauma and Ortho

CASE PRESENTATION INTRODUCTION & BACKGROUND: The coronoid is the most important portion of ulno-humeral articulation Reasons: 1.  Provides anterior buttress 2.  Anterior capsule and brachialis attach to coronoid 3.  Anterior band of the MCL attaches to it     - Distally and medially on sublime tubercle Instability rises and prognosis deteriorates according to the amount of coronoid process that is fractured. ANATOMY:                    CLASSIFICATION: Coronoid process fractures have been classified into three types: ·          type 1:  avulsion of the tip of the coronoid process ·          type 2:  fragment involving <50% of the coronoid process ·          type 3:  fragment involving >50% of the coronoid process The prognostic relevance of this classification is contentious, but there is some correlation with the pattern of associated injuries: smaller fractures are more likely to be associated with the “ terrible triad ” pa