The treatment of humeral fractures is a complex issue and the source of considerable controversy. In the case of fractures of the proximal humerus, early range of motion is the main aim of treatment. If a fracture modifies the anatomy or function of the glenohumeral and scapulothoracic joints, the surgeon must adhere meticulously to treatment principles in order to ensure a satisfactory outcome. Humeral shaft fractures are frequent, accounting for 1% to 3% of all fractures in adults; while excellent functional results have been reported with nonoperative management, open reduction and...