Cubital Tunnel Release: What It Is and What to Expect
Medically reviewed by Sumiran Racherla, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor provides Cubital Tunnel Release?
An orthopaedic surgeon talks with you about surgery for cubital tunnel syndrome, which is a pinched nerve at the elbow. A surgeon does the operation. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What it is
Cubital tunnel release is surgery to treat cubital tunnel syndrome. This problem is also known as ulnar nerve entrapment at the elbow. People with this syndrome have a pinched nerve at the elbow, called the ulnar nerve. In this operation, the ligament roof of the tunnel is cut and divided. This makes the tunnel bigger and lowers pressure on the nerve.
Why a doctor might recommend it
People with cubital tunnel syndrome typically have numbness in the small finger and sometimes the ring finger. In severe cases, they also have weakness in the muscles of the hand. Doctors often recommend nonsurgical treatments first, such as splinting the elbow straight at night and learning exercises. Surgery is the next step if the condition is too severe for those treatments or if they do not work.
How to prepare
Tests before surgery may include the following.
- Nerve conduction studies and EMG, which are electrical tests that confirm the problem and show how severe it is
In the weeks before surgery, avoid injury to the skin over the elbow. A wound there may delay the operation. Smokers are typically encouraged to avoid smoking for several weeks before surgery. You should expect to be sore for several days, so make arrangements at home and at work.
What happens during it
You are often given general anesthesia to make you sleepy, and the surgical site is numbed with medication. The most common type is an open procedure. The surgeon makes a cut curving behind the bony bump on the inside of the elbow. The surgeon opens the strong tissue over the nerve until the nerve is completely released, then checks it for damage. If the nerve jumps over the bone, the surgeon may move it in front of the bone. This is called a transposition. The procedure takes around 20 to 40 minutes. It is almost always done on an outpatient basis, so you go home the same day.
Recovery
After surgery you will feel groggy from the anesthesia and should be driven home by a family member or friend. If a block was used, your arm will be numb and weak for a few hours. You may be given a sling. People with sedentary jobs may return to work a few days after surgery. People with physically demanding jobs will likely need 2 to 4 weeks off.
Risks and side effects
Complications from surgery can include the following.
- Infection
- Wound healing issues
- Injuries to nearby structures such as nerves, vessels, or tendons
- Lack of improvement or worsening of the condition after surgery
Many patients have numbness over the tip of the elbow after surgery, and it usually goes away over time. Injury to the ulnar nerve itself is rare and may need further surgery. Call 911 or go to the emergency room if you have bleeding that will not stop, trouble breathing, chest pain, or fainting.
Who performs it
A surgeon does the operation. An anesthesiologist may numb the whole arm with a block.
Common questions
How long does cubital tunnel release take?
The procedure takes around 20 to 40 minutes. It is almost always done on an outpatient basis, which means you do not stay overnight in the hospital.
How long does it take to see results from the surgery?
It can take 12 to 18 months after surgery to see the final results. Overall, long-term outcomes are good, especially in people who had milder disease for a shorter time.
Does the surgery always reverse the symptoms?
No, results depend on how severe the problem was and how long it lasted. In milder cases that have lasted only a few months, surgery can improve and even reverse the symptoms. Once muscle is lost, it does not tend to grow back.
How does a direct primary care or concierge doctor fit in?
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance.
Sources
- American Academy of Orthopaedic Surgeons - OrthoInfo - Cubital Tunnel Release
- American Academy of Orthopaedic Surgeons - OrthoInfo - Cubital Tunnel Syndrome
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
