Proximal Humerus Fractures: A Case Report of Multiple Complications with Kocuria rosea Infection

Proximal humerus fractures (PHF) represent approximately 10% of all fractures, with a higher incidence in women. Management strategies vary based on patient factors and fracture patterns, with recent literature supporting surgical intervention, including osteosynthesis or arthroplasty, for complex 3- and 4-part fractures. This case report describes a complex case of a patient with a Neer type II PHF who developed chronic Kocuria rosea infection following reverse shoulder arthroplasty (RSA) after initial osteosynthesis failure. The case highlights the diagnostic and therapeutic challenges in managing such complications, including a rare pathogen and multiple revision surgeries, and underscores the importance of individualized treatment strategies.