The Human Humerus With A Fixed Fracture

Description

Humerus anatomy is presented from proximal head to distal condyles with an internally fixed fracture along the diaphysis, stabilized by steel orthopedic hardware. Proximally, the humeral head and anatomical neck sit medial to the greater tubercle, with the surgical neck just inferior to the tubercles and proximal shaft. Along the lateral surface, a contoured plate spans the fracture line, with multiple screws passing from the lateral cortex toward the medial cortex, bridging proximal and distal fragments in alignment. Distally, the shaft flares toward the medial and lateral epicondyles, orienting the hardware relative to the elbow end of the bone. Diaphyseal humeral fractures often raise immediate questions about fixation strategy and iatrogenic risk, because the radial nerve courses in the spiral groove on the posterior shaft and becomes vulnerable during plate placement and screw length selection. Plate position and screw trajectories in this illustration support discussion of open reduction and internal fixation (ORIF), including working length across the fracture zone, bicortical purchase, and the balance between stability and preservation of periosteal blood supply. Bony landmarks such as the deltoid tuberosity and the proximal metaphyseal flare provide reference points for teaching where plates commonly sit on the anterolateral or lateral surface in standard approaches. Orthopedic trauma courses can pair this illustration with case-based teaching on midshaft humeral fractures, postoperative alignment goals, and common complications such as radial nerve palsy and nonunion. Medical publishers will find it well suited for chapters on upper-limb skeletal trauma, implant terminology, and hardware identification, while clinical teams can incorporate it into perioperative counseling to explain why plates and screws remain confined to the bone and do not cross the shoulder or elbow joints. Anatomical accuracy verified by SciePro's Medical Advisory Board.