We included 50 patients, mean age 75 (range, 55-93) years with 80 % women. The fracture inclusion criteria were a displacement of the shaft of >50 % of its width and/or >45° of angulation. Follow-up examinations were performed at 4, 12, and 24 months. The main outcome measures were the Constant and DASH scores and HRQoL according to the EQ-5D.
Eight patients (16 % ) were re-operated upon during the study period. At the final follow-up the mean Constant score was 61 and the mean DASH score 32. The EQ-5D index score decreased from 0.86 before the fracture to 0.62 at 4 months. At 12 months the EQ-5D index score was 0.65 and at 24 months 0.68. The values at all follow-ups were significantly lower than before the fracture (P < .001 in all 3 comparisons).
Locking plates appear to be a good treatment alternative in elderly patients with a displaced 2-part fracture of the surgical neck of the proximal humerus with an acceptable complication rate and an acceptable functional outcome; however, rigorous attention has to be paid to avoid screw penetration. Despite the overall acceptable functional outcome, the patients reported a substantial negative effect upon their HRQoL.