![]() The lateral and medial collateral ligaments provide joint stability. olecranon process and proximal ulnar shaft.When fully extended the elbow joint forms a valgus angle, this is commonly referred to as the carrying angle and is generally greater in women.īony landmarks of the elbow palpable on examination are the: Movement at the proximal and distal radio-ulnar joints combine to produce 75 of pronation and 80 of supination. Hyperextension may be possible and up to 15 is considered normal, especially in women. The elbow is a hinge joint formed by the humerus, radius and ulna. Posteriorly the ulna forms the olecranon, which contacts the olecranon fossa of the humerus at full elbow extension.Īnatomy of the joint – The elbow joint allows from 0 0 to approximately 140-150 0 of flexion 7. The radial head articulates with the humeral capitellum whilst the trochlear notch of the ulna articulates with the humeral trochlea. The elbow is a hinge joint and consists of the humero-ulnar, humero-radial and proximal radio-ulnar articulations. This session aims to provide an introduction to the common acute traumatic injuries that occur around the elbow joint, and to provide the emergency physician with an understanding of the assessment and initial management of these injuries.Įlbow injuries are common in both adults and children although fracture patterns differ between the two populations. Paediatric radiographs, in particular, can be very difficult to interpret and are complicated further by the gradual appearance of multiple ossification centres during skeletal development. Injuries are common, both in adults and children, but the fracture patterns in children tend to be different to the adult population due to the nature of the developing bones.Īn ability to interpret elbow radiographs is important to detect what may often be subtle injuries. It is important for the emergency physician to have a good knowledge of the elbow joint and to be aware of the common injuries that occur. Elbow injuries are common and acute elbow trauma accounts for 2-3% of all visits to the emergency department 6.
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