Intermediate-term outcome of hemiarthroplasty for comminuted proximal humerus fractures

Low-profile hemiarthroplasty with bone block graft had unique advantages for tuberosity union. During surgery, good prosthetic positioning with respect to the anatomic axis of the glenoid and critical shoulder angle (>38°) were essential. However, age (>70 years) and systemic comorbidity showed poor clinical outcome. These factors should be considered in standardizing the clinical results.