What is the prevalence of inferior glenohumeral dislocation (luxatio erecta humeri)?

Updated: Aug 17, 2018
  • Author: Anantha K Mallia, DO, FACEP; Chief Editor: Erik D Schraga, MD  more...
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Answer

Inferior glenohumeral dislocation (luxatio erecta humeri) is rare, accounting for fewer than 1% of all shoulder dislocations. [3, 4] Most cases arise from forceful hyperabduction of the shoulder. This initially results in impingement of the humeral head against the acromion, and the leverage caused by this impingement ultimately drives the humeral head downward, causing it to disrupt the inferior portion of the glenohumeral capsule and dislocate. Forceful, direct axial loading of an abducted shoulder can also result in luxatio erecta. [5, 6]


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