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A humerus fracture is a break of the humerus bone in the upper arm. [1] Symptoms may include pain, swelling, and bruising. [1] There may be a decreased ability to move the arm and the person may present holding their elbow. [2]
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.
A supracondylar humerus fracture is a fracture of the distal humerus just above the elbow joint. The fracture is usually transverse or oblique and above the medial and lateral condyles and epicondyles. This fracture pattern is relatively rare in adults, but is the most common type of elbow fracture in children. [1]
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 ...
A medial epicondyle fracture is an avulsion injury to the medial epicondyle of the humerus; the prominence of bone on the inside of the elbow. Medial epicondyle fractures account for 10% elbow fractures in children. 25% of injuries are associated with a dislocation of the elbow.
unstable spinal fracture-dislocation at the thoracolumbar junction: Thoracic Spine Fractures and Dislocations at eMedicine: Hume fracture: A.C. Hume: olecranon fracture with anterior dislocation of radial head: Ronald McRae, Maxx Esser. Practical Fracture Treatment 5th edition, page 187. Elsevier Health Sciences, 2008.
Instances in which the medial epicondyle of the distal humerus is malformed due to the initial fracture at the humeral endplate may result in subluxation (snapping) of the ulnar nerve over the medial epicondyle with active flexion and extension of the elbow.