Pectoralis Major Pedicle Bone Graft For 4-Part Proximal Humerus Fractures

It is aimed to restore the integrity of the medial cortex with the bone pedicle from the insertion region of the pectoralis major muscle in middle-aged patients with Neer type 4 proximal humerus fractures. Researchers aim to reduce the risk of avascular necrosis with a vascular living bone tissue, as well as providing mechanical support with this method. The investigators aim to reduce the risk of avascular necrosis with a vascular living bone tissue, as well as providing mechanical support with this method.