Shoulder Dislocations (Subscribe)  

Inferior glenohumeral dislocations, also known as luxatio erecta, are extremely uncommon, accounting for less than 1% of all shoulder dislocations. Most inferior dislocations result from forceful hyperabduction of the shoulder. Hyperabduction of the glenohumeral joint initially results in impingement of the humeral head against the acromion. The leverage caused by...

* anterior (subcoracoid)
  o humerus --> beneath coracoid process, anterior to glenoid
  o most frequent site + type of dislocation of any joint
  o easily detected
  o repeated dislocation ==> Hill-Sachs deformity and/or Bankart deformity
* posterior
  o 2 - 4% of shoulder dislocations
  o 50% d/t seizures; trauma, electrical shock
 ...

Shoulder dislocations account for almost 50% of all joint dislocations. Most commonly, these dislocations are anterior (90-98%) and occur due to trauma. Most anterior dislocations are subcoracoid in location. Subglenoid; subclavicular; and, very rarely, intrathoracic or retroperitoneal dislocations may occur.
Synonyms and related keywords: shoulder instability, anterior shoulder dislocation, posterior shoulder...

Webinar in Spanish produced Monday November 29th, 3:00pm PST.
Meeting Program
Should You Repair First Time Dislocators (Spanish) Juan-Carlos González
Advanced Arthroscopic Techniques for MDI (Spanish) Guillermo Arce
Open Repair for Instability (Spanish) A Daniel Moya
Management of Instability in Athletes (Spanish) Michael Simoni
Shoulder Instability (Spanish) Webinar Discussion Sergio L Checchia