Ulnar nerve entrapment of elbow is also known as cubital tunnel syndrome. The ulnar nerve begins in the spinal cord while in the neck and operates down the arm in to the hand. This may be related to nearby arthritis (osteoarthritis or inflammatory) or earlier trauma. There can be pain https://www.theorthopaedicandpainpractice.com/the-latest-advances-in-elbow-nerve-pain-treatment/