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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
Proximal fractures are classified into one of four types of fractures based on the displacement of the greater tubercle, the lesser tubercle, the surgical neck, and the anatomical neck, which are the four parts of the proximal humerus, with fracture displacement being defined as at least one centimeter of separation or an angulation greater ...
The head of the radius is not in complete contact with the capitulum of the humerus in all positions of the joint. The capitulum occupies only the anterior and inferior surfaces of the lower end of the humerus, so that in complete extension a part of the radial head can be plainly felt projecting at the back of the joint.
The Müller AO Classification of fractures is a system for classifying bone fractures initially published in 1987 [1] by the AO Foundation as a method of categorizing injuries according to therognosis of the patient's anatomical and functional outcome. "AO" is an initialism for the German "Arbeitsgemeinschaft für Osteosynthesefragen", the ...
This nerve is the most commonly injured nerve in proximal humerus fractures due to its location close to the proximal humerus. [ 12 ] Muscles that attach to the proximal humerus and can cause a deforming force on fracture fragments include the pectoralis major , the deltoid , and the rotator cuff muscles .
When the humerus is driven from the glenoid cavity, its relatively soft head impacts against the anterior edge of the glenoid. The result is a divot or flattening in the posterolateral aspect of the humeral head, usually opposite the coracoid process. The mechanism which leads to shoulder dislocation is usually traumatic but can vary ...
When this happens, a pocket at the front of the glenoid forms that allows the humeral head to dislocate into it. It is an indication for surgery and often accompanied by a Hill-Sachs lesion, damage to the posterior humeral head. [5] A bony Bankart is a Bankart lesion that includes a fracture of the anterior-inferior glenoid cavity of the ...
The Milch classification is a system of categorizing single column (AO type B) distal humerus fractures based on the pattern of epicondyle involvement. It is distinct from the Jupiter classification which is used for bicolumnar distal humerus fractures.