Cubital Tunnel Syndrome

Cubital tunnel syndrome is compression of the ulnar nerve in the arm that results in numbness or weakness in the hand. The ulnar nerve is most often compressed as it runs just behind the bony prominence (called the medial epicondyle) on the inside of your elbow. The nerve is sometimes called the “funny bone” nerve and gives feeling to the small finger and half of the ring finger. It also controls some of the small muscles in the hand that help with fine movements and some of the bigger muscles in the forearm that help you make a strong grip.  Left untreated, long term cubital tunnel syndrome can lead to severe weakness and disability in the hand.

Causes and risk factors

  • External compression of the nerve as it runs along the inside of your elbow

  • More common in males

  • Elbow arthritis

  • Prior elbow trauma/injury

Symptoms

  • Tingling and numbness in fingers, primarily the ring and small finger

  • Lack of strength in grip and finger coordination

Diagnosis and treatment

Many patients experience the classic symptoms of numnbess and tingling in the ring and small finger. At times, some patients will also experience nerve pain that can radiate up the arm to the elbow, though some patients may only experience weakness and difficulty with use of the hand.

If the nerve is compressed for a long time, irreversible muscle weakness and atrophy in the hand can occur. It’s important to see an Orthopedic Hand Surgeon if ulnar nerve symptoms persist or are severe. Early treatment for cubital tunnel syndrome is often non-surgical such as anti-inflammatory medicines, splinting, and/or avoiding aggravating activities.

If symptoms do not improve, surgery may indicated. In general, surgery involves performing an ulnar nerve release, or “cubital tunnel release”, though additional procedures may be warranted. Dr. Holt with discuss treatment options with you to develop an optimal plan depending on your specific symptoms and goals.

Cubital Tunnel Release Surgical Information/Post Operative Instructions

Additional Links/Information:

OrthoInfo: Cubital Tunnel Syndrome