Your cubital tunnel is the groove on the inside of your elbow, also called the “funny bone.” The funny part about the funny bone is that it is not actually a bone but rather a nerve, called the ulnar nerve. Your ulnar nerve begins in your neck and passes through the cubital tunnel on its way to your hand.

When you flex your elbow, the ulnar nerve is required to both stretch and slide through your cubital tunnel. If your ulnar nerve is “stuck” in the tunnel and does not glide when you flex your elbow, this leads to traction and irritation of the nerve. This is called “cubital tunnel syndrome.” The nerve may also be irritated from direct compression, like leaning your elbow on the edge of a desk or from arthritic spurs. Cubital tunnel syndrome is the second most common nerve compression problem in the arm, behind carpal tunnel syndrome.

Irritation of the ulnar nerve in the cubital tunnel causes pain, numbness or tingling that radiates from your elbow into your fourth and fifth fingers. Your symptoms can vary from a vague increased sensitivity to pain. The symptoms are common at night and are often progressive over time. In severe cases, you may begin to lose grip strength and fine muscle control.

Cubital tunnel syndrome is commonly seen in baseball, tennis and racquetball players. Workers who keep their elbows flexed such as holding a tool or telephone, or those who press the ulnar nerve against a hard surface like a desk, are at an increased risk for this disorder. Cubital tunnel syndrome affects men three to eight times as often as women and is more common in those who have diabetes or are overweight.

You should try to avoid prolonged elbow flexion or direct pressure over your elbow. Our office may prescribe a nighttime elbow splint that limits flexion.

Your Median Nerve begins in your neck and travels down your arm on its way to your hand. This nerve is responsible for sensation on the palm side of your first 3 ½ fingers and also controls some of the muscles that flex your fingers. The median nerve can sometimes become entrapped near your elbow as it travels through a muscle called the “pronator teres”. Compression of the median nerve by the pronator muscle is called “Pronator Syndrome.”

Pronator syndrome is often brought on by prolonged or repeated wrist and finger movements, i.e., gripping with the palm down. Carpenters, mechanics, assembly line workers, tennis players, rowers, and weight lifters are predisposed to this problem. The condition is more common in people with excessively developed forearm muscles and is also more common in your dominant arm. Pronator syndrome most often affects adults age 45-60 and females are affected about four times more frequently than males. People who suffer from diabetes, thyroid disease, and alcoholism have an increased risk for developing pronator syndrome.

Pronator syndrome produces symptoms very similar to a more common cause of median nerve compression called “carpal tunnel syndrome”. Symptoms of pronator syndrome include numbness, tingling, or discomfort on the palm side of your thumb, index, middle finger, and half of your ring finger. The discomfort often begins near the elbow and radiates toward your hand. Your symptoms are likely aggravated by gripping activities, especially those that involve rotation of the forearm, like turning a doorknob or a screwdriver. Unlike carpal tunnel syndrome, pronator syndrome symptoms are not generally present at night. You may sometimes feel as though your hands are clumsy. In more severe cases, hand weakness can develop.

To help resolve your condition, you should avoid activities that involve repetitive hand and forearm movements. Perhaps the most important aspect of your treatment plan is to avoid repetitive forceful gripping. You may apply ice packs or ice massage directly over the pronator teres muscle for ten minutes at a time or as directed by our office. In some cases, an elbow splint may be used to limit forearm movements. If left untreated, pronator syndrome can result in permanent nerve damage. Fortunately, our office has several treatment options available to help resolve your symptoms.