ABSTRACT
Objective To investigate the clinic efficacy of proximal humeral internal locking system(PHILOS) in the treatment of Neer Ⅱ and Ⅲ proximal humeral fractures.Methods From January 2013 to December 2015,a total of 47 patients with Neer Ⅱ and Ⅲ proximal humeral fractures was treated with PHILOS fixation in our hospital.The operative time,blood loss in operation,hospital stay,complications,Constant scores and radiography films were retrospectively analyzed.Results All 47 patients were followed up for an average of (19.2 ±9.6) month.The average operative time,the level of average intraoperative blood loss,the mean hospitalization time and the complication rate were(95.6 ±43.1) min,(108 ± 41.6) mL,(11.3 ±3.2) d and 14.7 ％ respectively.The Constant score was improved from(21.74 ± 8.24) preoperatively to(82.83 ± 7.21) at the last follow-up,and the difference was statistically significant(t=-36.57,P＜0.01).Conclusion Fixation with PHILOS is a safe and effective treatment for patients with Neer Ⅱ and Ⅲ proximal humeral fractures.