If not supported adequately, it invariably contributes to varus collapse with the fracture or screw penetration in the humeral head. A perfectly-positioned calcar screw, fibular strut graft or a little medial plate can prevent this complication. Postural correction and movement sample retraining are important in lessening strain on the shoulder https://www.theorthopaedicandpainpractice.com/what-is-a-proximal-humeral-fracture/