Long-term followup of the modified Bristow procedure

A total of 86 modified Bristow procedures were per formed for anterior shoulder instability between 1975 and 1987. Followup on 79 shoulders (92%) was ob tained at an average postoperative time of 8.6 years. The redislocation rate was 4%. Average motion loss was 5° of internal rotation and 9° of external rotation. Fifteen percent of the patients examined expressed mild apprehension with the shoulder abducted and externally rotated. Radiographic bone union of the coracoid transplant was noted in 82% of patients. Additional surgical procedures were required in 14% of patients. Seventy-three percent of the reoperations were for screw removal because of persistent shoulder pain. The average subjective shoulder function was rated at 86% of preinjury level. All throwing athletes were able to return to throwing, although 54% of the patients with dominant shoulder involvement noted a decrease in throwing velocity. Ninety-seven percent of the patients rated their results as good or excellent.