The ulnar nerve, also known as your funny bone nerve, runs down the inside part of your arm and into your hand, controlling muscles in your forearm and hand, while providing sensation to your little finger and half of your ring finger.
Cubital tunnel syndrome is a condition caused by irritation or compression of the ulnar nerve at the inside of the elbow. When the ulnar nerve is compressed, it can lead to pain, numbness and weakness in the forearm and hand.
What Is Cubital Tunnel Syndrome?
The cubital tunnel is a narrow passage of tissue, ligament and bone on the inside of your elbow. The ulnar nerve passes through this tunnel and is most vulnerable at a bony bump called the medial epicondyle — the same spot you hit when you strike your “funny bone.”
When the ulnar nerve becomes inflamed or irritated, it can cause symptoms similar to the tingling or shock you feel when you hit your funny bone, but these sensations can become persistent and affect your daily life.
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What Causes Cubital Tunnel Syndrome?
Cubital tunnel syndrome can result from:
- Frequent bending of the elbow (pulling, lifting, reaching)
- Resting or leaning on the elbow for extended periods
- Previous injuries, fractures or dislocations of the elbow
- Arthritis or bone spurs in the elbow
- Cysts or tumors near the cubital tunnel
In many cases, the exact cause is unknown. Over time, changes in soft tissue, repeated pressure or repeated snapping of the nerve over the bony prominence can also irritate the nerve.
Cubital Tunnel Syndrome Symptoms
The most common symptoms of cubital tunnel syndrome include:
- Numbness or tingling in the ring and little finger, often when the elbow is bent
- Nighttime tingling or numbness
- Weak grip or difficulty with fine hand movements
- Aching or discomfort on the inside of the elbow
- Hand clumsiness due to muscle weakness
Symptoms may come and go at first, but if untreated, they can become constant and lead to muscle wasting in the hand.
Treatment for Cubital Tunnel Syndrome
Most patients start with non-surgical treatments, including avoiding activities that aggravate the condition, wearing a split or brace at night, using elbow pads to protect against chronic pressure and hand therapy or exercises to maintain mobility.
Surgery for Cubital Tunnel Syndrome
If non-surgical methods are ineffective, surgery may be recommended. Surgical options include:
- Cubital tunnel release: Cuts the ligament over the nerve to relieve pressure
- Ulnar nerve transposition: Moves the nerve to a new position to prevent it from getting trapped
- Medial epicondylectomy: Removes part of the medial epicondyle to decompress the nerve
Surgery is outpatient. Physical therapy may be needed to restore motion and strength.
Cubital Tunnel Syndrome Recovery
Recovery can take several months because nerves heal slowly. Early treatment usually results in better outcomes, while delayed care can lead to persistent numbness, weakness, and muscle wasting.
Most patients regain function and see improvement in symptoms with proper treatment.
How to Prevent Cubital Tunnel Syndrome
You can help reduce your risk of cubital tunnel syndrome by:
- Avoiding prolonged elbow bending or resting on hard surfaces
- Keeping your arms flexible and strong
- Warming up before physical activities or repetitive tasks
- Sleeping with your elbows straight
Cubital Tunnel Syndrome Treatment at OrthoNebraska
Need relief from cubital tunnel syndrome in the Omaha area? At OrthoNebraska, we want to make sure that our patients feel understood, safe and confident to take on an appropriate treatment plan. With proper management, we can help you reduce pain levels and improve quality of life.
