Greater tuberosity osteotomy: a treatment breakthrough in a case of bilateral old-unreduced malunion fracture-dislocation of proximal humerus.

Anterior shoulder dislocation occurs in 95% of all shoulder dislocation. Pathological changes such as bone loss may occur in neglected cases, which can cause locking of the humeral head, complicating the procedure needed for reduction. A 26-year-old male patient presented to the clinic with pain and limited range of motion 2 months after a fall, with a history of unsuccessful treatment by a traditional bonesetter and recurrent right shoulder dislocations. The patient was diagnosed with bilateral neglected closed fracture dislocation of proximal humerus Neer 2-part and underwent open reduction with greater tuberosity (GT) osteotomy and PHILOS plate fixation. GT osteotomy for locked fracture-dislocations of the proximal humerus allowed for enhanced posterior visualization, enabling a safer reduction while preserving the subscapularis muscle and facilitating the reconstruction of the Hill-Sachs lesion.