Cubital Tunnel Syndrome
What Is Cubital Tunnel Syndrome?
Cubital tunnel syndrome, also known as ulnar neuropathy, is a condition caused by compression or irritation of the ulnar nerve as it passes through the cubital tunnel at the elbow. The ulnar nerve runs through a groove on the inner side of the elbow (commonly called the funny bone) and continues down to the hand, providing sensation and motor function to parts of the hand and fingers.
Similar to carpal tunnel syndrome in the wrist, cubital tunnel syndrome results from repetitive pressure on the ulnar nerve. This pressure can be caused by habitual activities such as leaning your elbows on hard surfaces, bending the elbow for extended periods (such as during sleep), or engaging in physical activities that place stress on the nerve. The condition may also develop from injuries that cause tissue around the nerve to thicken or muscles to enlarge. Additionally, abnormal bone growth or fluid accumulation in the elbow can create pressure on the nerve.
Symptoms of cubital tunnel syndrome include pain, numbness, and tingling in the elbow that can extend into the fingers, particularly the ring finger and pinky. These sensations are especially noticeable when the elbow is bent or when pressure is applied to the area, such as when leaning on a hard surface. In more severe cases, patients may experience loss of strength in the fingers and decreased ability to grip with the hand. Some people also notice the ulnar nerve moving or snapping over the bony prominence of the elbow when the arm is bent and straightened, which can further irritate the nerve over time.
Nonsurgical Treatments
Many cases of cubital tunnel syndrome can be effectively managed without surgery. Our doctors offer a range of nonsurgical treatments to help relieve nerve compression, reduce symptoms, and protect long-term nerve health.
Lifestyle Modifications
Rest is essential for managing cubital tunnel syndrome. Avoiding activities that place unnecessary pressure on the elbow, such as leaning on hard surfaces or maintaining bent elbow positions for prolonged periods, can help reduce nerve irritation. Making ergonomic adjustments at work and during daily activities can significantly improve symptoms. Patients should also be mindful of sleeping positions that may keep the elbow bent for extended periods.
Medications
Anti-inflammatory medications may help reduce pain and swelling associated with cubital tunnel syndrome. Patients should consult with their pharmacist before purchasing anti-inflammatories, as these medications may interact with other medications or be contraindicated for certain medical conditions.
Physical & Occupational Therapy
Physical therapy can include stretching exercises to improve flexibility around the elbow and nerve gliding exercises to help the ulnar nerve move more freely through the cubital tunnel. Strengthening exercises for the surrounding muscles may also provide better support and reduce pressure on the nerve.
Supportive & Assistive Devices
Using a splint or brace to keep the elbow from bending, particularly during sleep, can be very effective in reducing symptoms. A padded elbow sleeve or cushion can protect the funny bone area from pressure during daily activities. These devices help maintain the elbow in a more neutral position, reducing compression on the ulnar nerve.
Surgical Treatments
When nonsurgical options are no longer effective and the ulnar nerve remains under severe pressure, surgery may offer lasting relief and restored nerve function. The right surgical approach depends on the severity of nerve compression, the presence of nerve instability, and your individual circumstances.
Cubital Tunnel Release
This procedure involves surgically releasing the roof of the cubital tunnel to create more space for the ulnar nerve, reducing compression. The surgeon makes an incision near the elbow and carefully divides the tissue compressing the nerve. This is often the first surgical option considered for cubital tunnel syndrome.
Ulnar Nerve Anterior Transposition
In cases where the ulnar nerve is unstable or moves excessively over the bony prominence of the elbow, the nerve may be repositioned to the front of the elbow. This procedure, called anterior transposition, moves the nerve to a location where it experiences less tension and friction during elbow movement. The nerve may be placed under the skin, under muscle, or within muscle tissue, depending on the specific case.
Medial Epicondylectomy
This procedure involves removing a portion of the medial epicondyle (the bony bump on the inner side of the elbow) to create more space for the ulnar nerve and reduce pressure. This approach is less commonly used but may be appropriate in certain cases where bone structure contributes significantly to nerve compression.