Rare location of pathological fracture due to a simple bone cyst: case report

Unicameral bone cysts (UBCs) are benign lesions primarily affecting long bones, particularly in the metaphyseal region, with a high incidence in children and adolescents.While most UBCs are asymptomatic, they often present as pathological fractures, especially in rare locations.This case report details a 40-year-old man who experienced a pathological fracture of the proximal radius, an uncommon site for UBCs, following a trivial fall.Radiographic and CT imaging confirmed the presence of a lytic lesion consistent with a UBC.Surgical intervention involved curettage of the cyst, filling the cavity with demineralized bone matrix (DBM), and fracture fixation.Post-operative recovery was favorable, with complete fracture consolidation and restoration of function observed at three months.This case underscores the importance of recognizing UBCs in atypical locations and highlights the need for tailored surgical approaches to ensure effective management and healing.