Cubital Tunnel Syndrome

Cubital tunnel syndrome is the second most common nerve compression syndrome of the upper extremity, after carpal tunnel syndrome. It occurs when the ulnar nerve — which passes through the cubital tunnel on the inner side of the elbow — becomes compressed or stretched, causing pain, numbness, and tingling in the ring and little fingers.

Causes and Risk Factors

The ulnar nerve is vulnerable at the elbow because it passes through a narrow bony groove behind the medial epicondyle. Prolonged elbow flexion (such as sleeping with the elbow bent or holding a phone), direct pressure on the elbow, prior elbow fractures, and bone spurs can all compress the nerve.

People who frequently lean on their elbows or perform repetitive elbow flexion-extension activities are at increased risk.

Treatment

Mild cubital tunnel syndrome is managed with elbow padding, nighttime extension splinting to prevent prolonged flexion, activity modification, and NSAIDs. Many patients improve significantly with these measures.

Surgical options include in-situ decompression (releasing the cubital tunnel roof) and ulnar nerve transposition (moving the nerve to the front of the elbow). Dr. Kinchelow selects the appropriate procedure based on nerve conduction findings, symptom severity, and anatomic factors.

Common Symptoms

Numbness and tingling in the ring and little fingers
Pain on the inner side of the elbow
Symptoms worse with elbow flexion
Weakness of grip and pinch
Intrinsic muscle wasting in advanced cases
Clawing of the ring and little fingers in severe cases

Treatment Options

Elbow padding and activity modification
Nighttime extension splinting
NSAIDs
Nerve conduction studies and EMG
In-situ cubital tunnel decompression
Ulnar nerve transposition
Post-surgical nerve rehabilitation

Ready to Get Help?

Dr. Kinchelow specializes in treating cubital tunnel syndrome. Schedule a consultation today.

Request Appointment (954) 635-5300