LAUSR

BACKGROUND Since the introduction of stemless anatomic shoulder arthroplasty, few mid-term functional and radiographic results have been published. This article presents results of the Arthrex Eclipse prosthesis with a mean follow-up of 70 months. METHODS We prospectively evaluated the outcome of 53 arthroplasties in 51 patients with a mean age of 65 years at the time of implantation with a minimum follow-up of 48 months. All patients were physically and radiologically examined, the results documented by Constant-Murley and DASH score. RESULTS Significant improvements from preop to last follow-up were documented in Constant-Murley score (53.8% - 83.5%, p<0.001), active range of motion (abduction 84° - 108°, flexion 98° - 125° and external rotation 19° - 41°). There was no significant difference between total- and hemiarthroplasty. The mean DASH score was 28.3 points (95% CI 20.1 - 35.2). Lowering of bone mineral density was observed in anteroposterior-radiographs at the humeral component in 24.5%, at the glenoid component in 33.3%. The rate of complications was 15.7%. CONCLUSION This study provides comparable improvement in functional, radiographic and subjective mid-term results to other accessible data for stemless and stemmed arthroplasty. LEVEL OF EVIDENCE Level IV; Case Series; Treatment Study.