<qa>  What is the standard treatment of isolated humeral diaphysis fractures?Presently, the standard treatment of isolated humeral diaphysis fractures is nonoperative care using splints, braces, casts and slings. Most centres in North America and Europe favor functional bracing with a coaptation splint given the positive results reported with this device, despite the prolonged period of pain and discomfort as well as the need for repeated clinic follow-up visits associated with it. 