Recruitment will be promoted with fliers and research posters in the outpatients department. The chief investigator or a research assistant will attend the orthopaedic shoulder clinics and will approach patients in the waiting area to introduce the study and hand out fliers. The orthopaedic team will also introduce the study to patients where appropriate and introduce the patient to the chief investigator or the research assistant if the patient expresses an interest in receiving more information relating to the study.