Cubital tunnel syndrome is the second most common compression neuropathy in the upper extremity after carpal tunnel syndrome.

Patients complain of numbness in the ring and small fingers, as well as hand weakness. Difficulty buttoning buttons, opening bottles, difficulty with typing, and generalized fatigue are often described by the patient. Advanced disease is complicated by irreversible muscle atrophy and hand contractures. 

Ulnar nerve decompression can help to alleviate symptoms and prevent more advanced stages of dysfunction.

Many surgical treatments exist for the treatment of cubital tunnel syndrome. The choice of surgical treatment is based on multiple factors, and a single surgical approach cannot be applied to all clinical situations. Through careful consideration of the potential sites of nerve compression and the etiologies for these local irritations is needed by a specialist, who then decides the appropriate surgical technique. 

Though most have been shown to be affective in the treatment of this disease process however, in situ decompression remains the most commonly used method with a good outcome anticipated in most patients.

Jariwala A. Outcome analysis of cubital tunnel decompression. - Scott Med J. 2015 Aug.