Dear Dr. Roach: My left elbow has been bothering me for eight years. When I bump it, there is a terrible pain, like an electric shock. The pain only lasts for about 10 seconds; however, it happens ...

A: Entrapment of the ulnar nerve in the elbow is called “cubital tunnel syndrome,” and it causes a range of symptoms, including pain, numbness and weakness in the hand and forearm.