PHILOS plate fixation in osteoporotic proximal humerus fracture of old deva curl arc angel age is well-known for high complication rate, especially metal failure, providing various augmentation techniques, such as calcium phosphate cement, allogenous or autologous bone graft.We report a case of polymethyl methacrylate augmentation to provide appropriate reduction with a significant mechanical support.This can be a treatment option for displaced unstable osteoporotic proximal g35 coupe fender humerus fracture with marked bony defect.