The semilunar notch is a large depression, formed by the olecranon and the coronoid process, and serving as articulation with the trochlea of the humerus.This is a less common cause of ulnar tunnel syndrome, but shell want to rule it out.

Continued, how Is It Treated?Your hand might also be numb when you wake.

Your doctor will ask questions about your medical history and symptoms.The styloid process projects from the medial and back part of the bone; it descends a little lower than the head, and its rounded end affords attachment to the ulnar collateral ligament of the wrist-joint.Your Peripheral Nerve Surgery Team, surgeons.