POSTERIOR INTEROSSEOUS NERVE SYNDROME

Course overview

THERE ARE MULTIPLE COMPRESSION NEUROPATHIES OF THE UPPER EXTREMITY. SOME NEUROPATHIES, LIKE CARPAL TUNNEL, ARE QUITE COMMON; OTHERS LIKE POSTERIOR INTEROSSEOUS NERVE (PIN) SYNDROME ARE NOT. KNOWLEDGE OF THE ANATOMY AND FUNCTION OF EACH NERVE IS ESSENTIAL TO DIAGNOSE WHICH NERVE AND COMPRESSION SITE IS INVOLVED CORRECTLY. THE POSTERIOR INTEROSSEOUS NERVE IS A BRANCH OF THE RADIAL NERVE, WHICH COMES OFF THE POSTERIOR CORD OF THE BRACHIAL PLEXUS. THE POSTERIOR INTEROSSEOUS NERVE SUPPLIES MOTOR INNERVATION TO THE POSTERIOR FOREARM. THE TERMINAL BRANCH OF THE POSTERIOR INTEROSSEOUS NERVE TRAVELS DISTALLY INTO THE FLOOR OF THE 4TH DORSAL COMPARTMENT OF THE WRIST TO INNERVATE THE DORSAL WRIST CAPSULE. THIS ACTIVITY REVIEWS THE ETIOLOGY, PRESENTATION, EVALUATION, AND MANAGEMENT OF POSTERIOR INTEROSSEOUS NERVE SYNDROME AND REVIEWS THE ROLE OF THE INTERPROFESSIONAL TEAM IN EVALUATING, DIAGNOSING, AND MANAGING THE CONDITION.