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Cubital tunnel syndrome

The cubital tunnel is a passageway inside the elbow (cubitus is Latin for elbow). The ulnar nerve is one of the major nerves of the arm. It controls forearm movement, finger movement and grip and provides sensation to the little finger and half of the ring finger. The ulnar nerve passes through the cubital tunnel as it crosses behind the elbow. The tunnel is lined with a sheath or fascia of tissue whose function is to protect the ulnar nerve as it slides through the bony tunnel. Cubital Tunnel Syndrome occurs when this nerve is compressed or injured.
 
Cubital Tunnel Syndrome may have a number of causes, some RSI related. Other causes may include arthritis, or direct injury to the bones.
 
Symptoms include numbness and tingling in the fourth and fifth fingers, pain in the forearm and loss of movement and strength in the fingers.
 
Treatment may include avoiding activities which involve repeated bending of the elbow, avoiding leaning on the elbow, splinting, anti-inflammatory medication, or surgery to either decompress or relocate the ulnar nerve.

 
RSI.org.uk