Why Cubital Tunnel Syndrome Causes Finger Numbness
The ulnar nerve passes behind the bony area on the inside of the elbow, where it is easy to irritate. Cubital tunnel syndrome develops when this nerve is stretched or compressed. You may notice pins and needles along the pinky side of your hand, discomfort while gripping, or reduced strength.
Sleeping with your arm curled, leaning on your elbow, or keeping it bent for a long time can aggravate the area. Repeated arm and hand motions may do the same. Our team also evaluates work-related repetitive-motion injuries when job duties contribute to the problem.
Cubital Tunnel vs. Carpal Tunnel
The location of the numbness offers an important clue. Cubital tunnel syndrome usually affects the ring and pinky fingers, while carpal tunnel syndrome more often involves the thumb, index finger, and middle finger.
Tennis elbow from repetitive use is different. It typically causes pain along the outside of the joint rather than tingling that travels into the hand.
What Happens During an Evaluation?
Your appointment will include questions about when the numbness began, which positions trigger it, and whether your grip has changed. Our provider will examine the elbow, forearm, and hand for differences in sensation, strength, and motion. Further testing is reserved for cases that suggest another injury or a more complex source.
How Is Cubital Tunnel Syndrome Treated?
Care usually begins by reducing pressure on the nerve. This may include changing how you position your arm, avoiding prolonged bending, wearing a brace at night, or taking anti-inflammatory medication.
Physical or occupational therapy can address movement patterns and support comfortable use of the arm and hand. Our occupational therapists also provide on-site custom splints and brace fabrication. Corticosteroid injections are appropriate in some cases, while surgery is less common and generally considered when compression is more serious or weakness continues despite nonsurgical care.
When Should Finger Numbness Be Checked?
Brief tingling that stops after you change position is different from numbness that lingers or keeps returning. Arrange an evaluation if you notice a weaker grip, difficulty using the hand, or reduced feeling that no longer improves. Long-term pressure on the ulnar nerve can permanently affect the outer half of the ring finger and the pinky.
For an evaluation with our orthopedic team, contact us or call Bone & Joint Specialists at 219-795-3360. We welcome patients at our Merrillville, Highland, and Hobart, IN, offices.
