Patient Selection Patients will be selected from those who attend the outpatient elbow clinic at the Royal Devon and Exeter Hospital. All patients will be reviewed by a Consultant Orthopaedic Surgeon specialised in Elbow surgery. The inclusion criteria will be any patient who has experienced more than 6 months of symptoms from tennis elbow, that include pain on the lateral elbow that radiates down the forearm, point tenderness over the origin of the extensor muscles or at its close proximity (within 2.5cm) and pain on resisted extension of the Wrist. Patients must also have failed conservative treatment (a course of physiotherapy and activity modification) and have a baseline elbow pain >3/10 on VAS during resisted elbow extension.