Shoulder Case 12 Background
Inferior shoulder dislocations are very rare and are estimated to make up just 0.5% of all shoulder dislocations.
Luxatio Erectae are almost always traumatic, and most frequently following a fall.
These injuries are important to recognize due to the higher association with other limb threatening injuries than typical anterior shoulder dislocations:
- About 40% of inferior shoulder dislocations are associated with a proximal humerus fracture.
- Neurologic injury is seen in 30% of these patients.
- Vascular injury occurs in about 10% of patients, with almost all injuries being to the axillary artery.