Outcome measures were determined by an assessor blinded to participant allocation. The primary outcome measure was the short form of the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire (Quick-DASH).22, 23 The 11-item disability/ symptom component of the Quick-DASH was used, as previously detailed.24 The questionnaire measures physical ability and symptoms of the upper extremity and explores the impact of functional impairment and pain on daily-living tasks, as well as on social and recreational activities, work and sleep. The score ranges from 0 to 100 points, with 0 reflecting no disability and 100 corresponding to the most severe disability