Endoscopic cubital tunnel release: a modified surgery and clinical application

Background: Varied surgical alternatives for treating cubital tunnel syndromes have been used. A trend of endoscopic ulnar nerve release is emerging. The purpose of this study is to introduce a modified technique of endoscopic ulnar nerve decompression in association with anterior transposition of the ulnar nerve and to assess the feasibility and efficacy of the surgery. Materials and Methods: We introduced a modified method of endoscopic release and subfascial anterior transposition of the ulnar nerve. The technique was applied to six patients who presented signs, symptoms, and abnormal neurophysiological studies of cubital tunnel syndrome. The patients were classified according to the Dellon classification preoperatively. The Bishop rating system was used to evaluate the postoperative outcomes. Trial registration number for the study is MR-31-25-090620. Results: Preoperatively, all six patients were classified as severe according to the Dellon classification. The endoscopic cubital tunnel release and subfascial anterior ulnar nerve transposition surgeries were performed with no difficulty in all patients. All the patients had improvement in symptoms and scored excellent or good