Radial Nerve Palsy

When weakness appears in the wrist and hand, it's helpful to know about radial nerve palsy, a condition of this nerve in the arm responsible for the movement to extend the wrist and fingers, as well as part of the sensation on the back of the hand.

Common signs: The most characteristic sign is difficulty lifting the wrist, which droops; there may also be numbness on the back of the hand and weakness when opening the fingers.

Common causes: It is usually related to sustained pressure on the arm, humerus fractures, or improper positions during deep sleep.

Which specialist treats it? The orthopedist reviews these conditions of the arm and hand, sometimes with support from neurology. When a hand loses strength or no longer responds as before, it's advisable to request a medical evaluation.