Cubital tunnel syndrome
This condition is a result of compression of one of the major nerves (the ulnar nerve) that supply the hand at the elbow. Patients usually first notice pins and needles or numbness affecting the little finger and part of the ring finger.
The hand may become weak and patients find certain tasks requiring fine movement control to become awkward or fiddly.
Sometimes the muscles start to become wasted and this is particularly noticeable when gutters form on the back of the hand.
It is most common in men and provoked by tasks causing the elbow to be placed in a bent position.
Special tests called nerve conduction studies are helpful in determining the site and severity of nerve compression. Most people tolerate this investigation but some report discomfort.
Treatment may involve avoiding provocative activities, changing position of keyboards and posture, custom made splints or surgery.