Procedures · Hand & Upper Extremity Surgery

Cubital Tunnel Syndrome

Medically reviewed by Dr. Khalid Almutairi, Consultant Plastic Surgeon — updated 2026-08-13

Cubital tunnel syndrome — compression of the ulnar nerve at the elbow — is the second most common nerve compression in the upper limb. The ulnar nerve passes behind the inner side of the elbow, the spot most people know from the electric jolt of the "funny bone". When it is repeatedly pressed or stretched there, symptoms appear in the hand, not only at the elbow.

Care is led by Dr. Khalid Almutairi, a consultant plastic and reconstructive surgeon, fellowship trained in hand surgery and microsurgery in Canada and the USA.

Typical symptoms

Symptoms include numbness and tingling in the little finger and half of the ring finger, often worse when the elbow stays bent for long periods — during sleep, or while using a phone. As the condition advances, fine grip may weaken and the small muscles of the hand lose strength; in advanced cases, wasting may appear between the hand bones, or the little and ring fingers may drift into a bent, claw-like posture.

The appearance of weakness or wasting indicates advanced compression and warrants assessment without delay: the small hand muscles may recover incompletely after severe, prolonged compression.

How is it diagnosed?

Diagnosis rests on the history and clinical examination, including testing sensation, muscle strength, and elbow position. Electrodiagnostic testing (nerve conduction studies and EMG) may be requested to confirm the site and severity of compression, or to exclude compression at another level — such as the neck or the wrist — but is not required for every patient.

Non-surgical treatment

In mild cases, changing habits may be enough: avoiding leaning on the elbow, reducing prolonged bending, and sometimes a night splint keeping the elbow relatively straight. The response to these measures is assessed before surgery is discussed.

When is surgery considered, and what are the options?

Surgery is discussed when symptoms persist despite conservative treatment, or when weakness or severe compression is present. The core option is releasing the nerve from the points of pressure at the elbow; in selected cases, moving the nerve to a more comfortable path in front of the elbow (transposition) may be discussed. The appropriate choice is determined by examination and by the nerve's condition at surgery.

Recovery

Tingling and night symptoms often improve early, while lasting sensation and strength follow a slower course over months — nerves recover slowly, and in advanced cases the improvement is sometimes partial. Individual instructions are given for movement and the return to activities.

Limitations and risks

Risks include scar tenderness, infection, incomplete relief of symptoms — particularly with advanced wasting — temporary nerve irritation, and uncommon recurrence. The risks relevant to your case are discussed before any decision.

Why does the little finger go numb specifically?

Because the ulnar nerve supplies sensation to the little finger and half of the ring finger; compression at the elbow shows itself precisely in those fingers.

Is changing habits enough?

In mild cases it genuinely can be, and the case is reassessed if symptoms persist or progress despite it.

When can I return to work after surgery?

Many patients return to desk-based work within one to two weeks depending on the case; heavy manual work needs longer. Individual instructions are the reference.

Medical-information notice

This is general information and does not replace consultation and examination. Not all little-finger numbness comes from the elbow; medical assessment determines where the problem lies and the appropriate option.