Arun Kumar C, B Rakesh Kumar, A Ganesh* and Mathai NT
Aim
To determine the mechanism of injury and path anatomy of a rare inferior shoulder dislocation associated with fracture of greater tuberosity of humerus.
Background
Shoulder joint is one of the most mobile joint which makes it highly susceptible for dislocation preferably anterior dislocation. Out of all shoulder dislocations, inferior shoulder joint dislocation constitutes a minor chunk of it (0.5 %) making it an unusual case.
Case Presentation
A 37 – year - old male with a history of not able to move his shoulder following fall from height at his workplace presented to the casualty. On examination the shoulder was fixed in hyper abducted position with elbow flexed and forearm pronated. We did radio graphical assessment which showed inferior shoulder dislocation with greater tuberosity fracture of humerus. Computed tomographic scan was also done to assess the morphological status of the fracture. Dislocation was reduced in theatre under short general anesthesia by traction - counter traction method under fluoroscopic guidance and was immobilized later on.
Discussion
Inferior shoulder dislocation is a rare injury to tackle with and the need to know the mechanism of injury along with path anatomy helps in determining the appropriate management and early rehabilitation of the patient. The uniqueness of the case lies at the behest of type of injury that patient suffered, secondary impact to an already abducted shoulder leading to an axial load being transferred across the abducted shoulder.
Conclusion
These types of injuries need special attention and appropriate management for faster recovery and rehabilitation of the patient. Determining the mechanism of injury helps in understanding the injury pattern and its severity.
