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.
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