Humerus fracture Humerus fracture A humerus fracture is a break of the humerus bone in the upper arm. Symptoms are pain, swelling, and discoloration of the skin at the site of the fracture. Bruising appears a few days after the fracture. The neurovascular bundle of the arm may be affected in severe cases, which will cause loss of nerve function and diminished blood supply beneath the fracture. Proximal and distal fractures will often cause a loss of shoulder or elbow function. Displaced shaft and distal fractures may cause deformity, and such shaft fractures will often shorten the length of the upper arm.
Supracondylar process of the humerus incidental finding on radiographs made for other reasons, but occasionally isolated fractures of the process itself may lead to its discovery. Rarely, presence of the process and a connecting ligament may lead to compression of the brachial artery and the median nerve, leading to pain, paresthesia and/or ischemia. The supracondylar process is a vestigial remnant of the supracondylar foramen or epitrochlear foramen found in other vertebrates including cats, climbing mammals and lower primates. Supracondylar process of the humerus The supracondylar process of the humerus (also known as an "avian spur") is a bony projection on the anteromedial aspect of the