Cubital Tunnel Release
Cubital tunnel release decompresses the ulnar nerve at the elbow, where it runs through a narrow channel on the inside of the joint. The ulnar nerve controls the ring and little fingers and the small muscles of the hand. When compressed, it causes numbness, tingling, and weakness — cubital tunnel syndrome. Surgery either widens the channel by cutting the ligament over the nerve, or moves the nerve to a less confined position.
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Who Needs Cubital Tunnel Release?
Surgery is appropriate when cubital tunnel syndrome causes persistent numbness, noticeable weakness, or muscle wasting that hasn't improved after 3-6 months of conservative care — splinting, avoiding prolonged elbow bending, and nerve gliding exercises. Constant rather than intermittent symptoms generally push toward surgery sooner.
What to Expect
Recovery Timeline
Splint comes off. Elbow motion encouraged. Nerve symptoms may start improving within days, or take several weeks.
Gradually back to full elbow use. Physical therapy works on nerve gliding and grip strength.
Most patients have full hand and arm function back. Grip strength still improving.
Full recovery. Nerve regeneration continues — residual finger numbness can take up to 12 months to fully resolve.
Risks & Complications
- Incomplete relief of symptoms (more common in severe cases with pre-operative muscle wasting)
- Medial antebrachial cutaneous nerve injury causing forearm numbness
- Elbow instability (rare, with aggressive decompression)
- Infection (less than 1%)
- Recurrence
Frequently Asked Questions
How is cubital tunnel syndrome different from carpal tunnel syndrome?
Both involve nerve compression in the arm, but at different locations. Carpal tunnel is the median nerve at the wrist — symptoms in the thumb, index, and middle fingers. Cubital tunnel is the ulnar nerve at the elbow — symptoms in the ring and little fingers. Both are treated with surgical release, with similar success rates.
Will the numbness in my fingers go away after surgery?
Mild to moderate cases typically see good improvement within weeks. Severe cases, especially where muscle wasting has already begun, recover more slowly and may not fully resolve. Nerves regenerate at about 1mm per day, so symptoms in the hand can take 6-12 months to fully improve after the elbow is released.
What is the difference between in-situ release and transposition?
In-situ release cuts the ligament over the nerve without moving it — quicker, with faster recovery. Transposition moves the nerve to the front of the elbow where it's under less stress. Transposition is usually chosen when the nerve snaps in and out of the groove, or the tunnel itself is scarred and damaged.
Find a surgeon for Cubital Tunnel Release
Compare orthopaedic surgeons who perform this procedure.
Search surgeonsEstimated Cost
$5,000 - $15,000 (before insurance). Widely covered by insurance with documented failed conservative treatment.
Full cost breakdownRelated Specialty
Hand Specialists →Other Procedures
This information is for educational purposes only. Costs are estimates and vary by location, surgeon, and insurance. Always consult a qualified healthcare provider.