Clinical Trial for Surgery of the Ulnar Nerve (SUN) at the Elbow

Inclusion Criteria:

• A clinical diagnosis or suspected diagnosis of isolated ulnar neuropathy at theelbow

• Confirmation of ulnar neuropathy using the American Association of ElectrodiagnosticMedicine criteria for electrodiagnostic studies at the elbow. (Participants mustmeet at least 1 of the criteria to be enrolled (absolute motor nerve conduction fromabove elbow (AE) to below elbow (BE) of less than 50 m/s; An AE to BE segmentgreater than 10 m/s slower than BE to wrist segment; A decrease in compound muscleaction potential (CMAP) negative peak amplitude from BE to AE greater than 20%)

• Stated willingness to comply with all study procedures and availability for theduration of the study

• Able to read, understand and complete the questionnaires in English

Exclusion Criteria:

• Previous elbow fracture requiring surgical fixation

• Patients who have not attempted conservative management for UNE (e.g. nightsplinting)

• Subluxation of ulnar nerve on preoperative exam

• Recurrent UNE after previous surgery

• Concomitant neuropathic conditions such as Carpal Tunnel Syndrome or cervical orbrachial plexus abnormalities

• Participants with severe comorbid conditions that prohibit surgery