Aims: To evaluate the short term functional outcomes following a reverse total shoulder replacement for complex neck of humerus fractures. Methods: A single centre retrospective case series evaluating all patients who underwent reverse shoulder arthroplasty following a complex neck of humerus fracture. Functional shoulder movements were assessed by two orthopaedic trainees at 1 year follow-up and compared to the opposite shoulder. Subjective assessment was measured using the Disabilities of the Arm, Shoulder and Hand (DASH) score and the Oxford Shoulder Score (OSS). Documentation of any complications was also noted. Findings: The reverse total shoulder replacement showed favourable outcomes both subjectively and objectively. Subjectively patients in this study scored a mean of 27.5 +/- 24.4 (range 0 - 57.8) in the DASH and 37.9 +/- 9.2 (range 26 - 48) in the OSS. There was a high negative linear correlation between the 2 scoring systems (r = -0.95, p Conclusion: A reverse total shoulder replacement shows favourable subjective and objective outcomes for complex neck of humerus fractures in the trauma setting.