Locating the ulnar nerve during elbow arthroscopy using palpation is only accurate proximal to the medial epicondyle

Purpose Knowledge of ulnar nerve position is of utmost importance to avoid iatrogenic injury in elbow arthroscopy. The aim of this study was to determine how accurate surgeons are in locating the ulnar nerve after fluid extravasation has already occurred, and basing their localization solely on palpation of anatomical landmarks.