Forms of Luxation | Dislocated shoulder

Forms of Luxation

Different shapes are distinguished depending on how the joint head and socket are positioned in relation to each other after the shoulder has been dislocated. Luxatio anterior/subcoracoidea: Anterior dislocation is the most common form. The head stands in front of the shoulder joint under a bony projection of the shoulder blade (proc.

coracoidus). Luxatio inferior/axillaris: The head is located below the glenoid cavity and is displaced in the direction of the armpit. Luxation posterior/infraspinata: Here, the dislocated shoulder causes the joint head to stand behind the glenoid cavity, displaced in the direction of the back.

Other very rare forms are: Luxatio superior (upward), Luxatio erecta (head is below, arm can no longer be brought to the body), Luxatio intrathoracica (head is pressed into the thorax).

  • Luxatio anterior/subcoracoidea: Anterior luxation is the most common form. The head is located in front of the shoulder joint under a bony projection of the shoulder blade (proc. coracoidus).
  • Luxatio inferior/axillaris: Here the head is below the joint socket and is displaced in the direction of the armpit.
  • Dislocation posterior/infraspinata: In this case, the dislocated shoulder causes the joint head to stand behind the socket, displaced in the direction of the back.