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Extension type of supracondylar humerus fractures typically result from a fall on to an outstretched hand, usually leading to a forced hyperextension of the elbow. The olecranon acts as a fulcrum which focuses the stress on distal humerus (supracondylar area), predisposing the distal humerus to fracture. The supracondylar area undergoes ...
A displaced supracondylar fracture in a child. Distal humeral fractures are a group of humerus fracture which includes supracondylar fractures, single condyle fractures, bi-column fractures and coronal shear fractures. [1]
It is vulnerable to injury with fractures of the humeral shaft as it lies in very close proximity to the bone (it descends within the spiral groove on the posterior aspect of the humerus). Characteristic findings following injury will be as a result of radial nerve palsy (e.g. weakness of wrist/finger extension and sensory loss over the dorsum ...
It provides space for the olecranon of the ulna during extension of the forearm. ... The olecranon fossa is located on the posterior side of the distal humerus. [1] [2]
Proximal fractures make up 5% of all fractures and 25% of humerus fractures, [9] middle fractures about 60% of humerus fractures (12% of all fractures), [12] and distal fractures the remainder. Among proximal fractures, 80% are one-part, 10% are two-part, and the remaining 10% are three- and four-part. [ 22 ]
The posterior fat pad is normally pressed in the olecranon fossa by the triceps tendon, and hence invisible on lateral radiograph of the elbow. [3] When there is a fracture of the distal humerus, or other pathology involving the elbow joint, inflammation develops around the synovial membrane forcing the fat pad out of its normal physiologic resting place.
impacted posterior humeral head fracture occurring during anterior shoulder dislocation: Hill Sachs Lesion at Wheeless' Textbook of Orthopaedics online Holstein–Lewis fracture: Arthur Holstein Gwylim Lewis: fracture of the distal third of the humerus resulting in entrapment of the radial nerve: Holstein-Lewis fracture at Orthopedic Weblinks
The Gartland classification is a system of categorizing supracondylar humerus fractures, clinically useful as it predicts the likelihood of associated neurovascular injury, such as anterior interosseous nerve neurapraxia or brachial artery disruption.