[RESULTS] There were also no significant between-group differences over 2 years in the mean SF-12 physical component score ( surgical group : 1.77 points higher [ 95 % CI , -0.84 to 4.39 points ] ; P = .18 ) ; the mean SF-12 mental component score ( surgical group : 1.28 points lower [ 95 % CI , -3.80 to 1.23 points ] ; P = .32 ) ; complications related to surgery or shoulder fracture ( 30 patients in surgical group vs 23 patients in nonsurgical group ; P = .28 ) , requiring secondary surgery to the shoulder ( 11 patients in both groups ) , and increased or new shoulder-related therapy ( 7 patients vs 4 patients , respectively ; P = .58 ) ; and mortality ( 9 patients vs 5 patients ; P = .27 ) .