Hand & Upper Extremity Specialist · Phoenix, AZ

Cubital Tunnel
Syndrome

Cubital tunnel syndrome is the second most common nerve compression in the arm, affecting the ulnar nerve at the elbow. It causes numbness in the ring and little fingers and, if untreated, can lead to permanent weakness and muscle wasting in the hand.

Dr. Todd Richards MD, MBA — Hand Surgeon Phoenix AZ
Board-Certified Plastic Surgery
CAQ Hand Surgery
Stanford & UVA Trained
5 Phoenix Metro Locations

What Is Cubital Tunnel Syndrome?

Cubital tunnel syndrome occurs when the ulnar nerve — which travels through the groove on the inside of the elbow (the "funny bone" area) — becomes compressed or stretched. The ulnar nerve controls sensation to the ring and little fingers and powers the small muscles of the hand responsible for fine motor tasks.

Symptoms

Non-Surgical Treatment

Surgical Treatment

When conservative measures fail or compression is severe, Dr. Richards performs in situ decompression, anterior transposition (moving the nerve in front of the elbow), or medial epicondylectomy depending on the anatomic cause. As a fellowship-trained nerve specialist, he tailors the approach to each patient's anatomy — a nuanced decision that significantly affects outcomes.

Frequently Asked Questions

Is cubital tunnel the same as carpal tunnel?

No — different nerve compressions. Carpal tunnel affects the median nerve at the wrist (thumb/index/middle fingers). Cubital tunnel affects the ulnar nerve at the elbow (ring and little fingers).

Can it get better on its own?

Mild cases sometimes improve with activity modification. However, once significant nerve damage has occurred, surgical decompression is required — prolonged delay can cause permanent weakness.

What is recovery like after surgery?

Most patients are in a splint for 2–4 weeks, followed by progressive activity. Full recovery can take several months, particularly if significant nerve damage was present.

Experiencing numbness in your ring or little finger?

Same-week appointments available. Serving Phoenix, Scottsdale, Mesa, and the greater Valley.

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