Posterior compartment of the forearm

The Antebrachium

Published in Gene L. Colborn, David B. Lause, Musculoskeletal Anatomy, 2009

Deep Structures of the Extensor Compartment. The posterior interosseous artery passes between the radius and ulna to reach its present position within the posterior compartment of the forearm. The deep branch of the radial nerve curves from in front of the lateral epicondyle to its passage through the supinator - after which it joins the emerging posterior interosseous vessels. The supinator muscle arises from the lateral epicondyle and ulna and inserts obliquely upon the radius.

Management of posterior interosseous nerve (PIN) palsies after distal biceps tendon repair using a single incision technique- a conclusive approach to diagnostics and therapy

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Journal Information

Published in Journal of Plastic Surgery and Hand Surgery, 2021

Inga S. Besmens, Marco Guidi, Andreas Schiller, David Jann, Pietro Giovanoli, Maurizio Calcagni

Posterior interosseous nerve (PIN): The PIN arises from the radial nerve at the radiohumeral joint line. It passes under the supinator muscle at the arcade of Frohse. It then winds around the radial neck within the substance of the supinator muscle into the posterior compartment of the forearm

Posterior compartment of the forearm

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The Antebrachium

Management of posterior interosseous nerve (PIN) palsies after distal biceps tendon repair using a single incision technique- a conclusive approach to diagnostics and therapy