A. Anterior dislocation shoulder.
B. Posterior shoulder dislocation.
C. Fracture Proximal shaft humerus.
D. Fracture Clavicle.
The orthopaedic disorder as shown in the photograph above represents anterior dislocation of shoulder.
Anterior shoulder dislocation is by far the commonest type of dislocation and usually results from forced abduction, external rotation and extension. Anterior shoulder dislocations occur in a bimodal age distribution.
The first, and by far the more prevalent age group are young adult men who have sustained high-energy injuries to the shoulder. The second group is older patients who have been injured with a much lower level of violence.In older patients, the dislocation usually proves to be an isolated event.
Flattened: shallow anterior/anteroinferior glenoid bony contour: may predispose to recurrent dislocations.
Anterior dislocations can be further divided according to where the humeral head comes to lie:
- subcoracoid: most common
- intrathoracic: very rare
In anterior dislocations, the humeral head comes to lie anterior, medial and somewhat inferior to its normal location and glenoid fossa.