Fractured Ulna and Radius, Posterior View

Description

Oriented in posterior anatomical position, the ulna lies medial and the radius lateral, with the proximal ends forming the posterior contour of the elbow at the olecranon and the radial head just lateral to it. A fracture line is emphasized near the proximal forearm, and the olecranon fragment is shown displaced, separating from the trochlear notch that would normally cup the humeral trochlea. Red accenting tracks the break margins to guide the eye along the disrupted cortical continuity. Alignment is the story here. Posterior visualization of a proximal ulna fracture with associated involvement of the radial head cues the classic injury patterns that drive management, including Monteggia-type fracture-dislocation where ulnar malalignment can leave the radial head incongruent with the capitulum and unstable on pronation-supination. That relationship matters in the operating room: restoring ulnar length and posterior angulation is often the step that reduces the radiocapitellar joint, while persistent radial head displacement should prompt a search for annular ligament interposition or associated coronoid injury. Expect triceps traction to worsen olecranon displacement. Painful extension follows. Use this asset in undergraduate upper-limb anatomy teaching to reinforce medial-lateral orientation of the forearm bones and their elbow landmarks, and in orthopaedic or emergency medicine materials discussing evaluation of elbow trauma with attention to radiocapitellar alignment on lateral radiographs. It also fits surgical education on posterior elbow exposure, tension band fixation versus plate fixation of olecranon fractures, and documentation figures for patient-facing explanations of displaced forearm fractures. Anatomical accuracy verified by SciePro's Medical Advisory Board.