Radial nerve injury Posted On March 7, 2020 Figure 107-3. Radial nerve, major branches, right arm, lateral view. (From Stewart JD: Focal Peripheral Neuropathies, 3rd ed. Philadelphia, Lippincott Williams & Wilkins, 2000.) Radial Nerve Injury, Locations – Everything You Need To Know – Dr. Nabil Ebraheim