B3 fractures are distinguished by glenohumeral dislocations. Associated surgical neck and/or tuberosity fractures are also present.
This dislocation should be reduced as soon as possible in order to preserve the viability of the humeral head and neurological integrity. Most often, this is done in the OR using open techniques and muscle relaxing anesthesia. Typically, this open reduction is combined with an osteosynthesis of the fracture components. While closed reduction might be successful, anesthesia with muscle relaxation should be used, and the possibility of an immediate open reduction must be considered.
These injuries may include rotator cuff tears. An early postreduction MRI, or arthroscopic evaluation can help avoid unnecessary delays before surgical repair.