Abstract:Objective To explore the effects of minimally invasive percutaneous osteosynthesis on shoulder function of proximal humeral fractures. Methods A total of 63 clinical data of patients with proximal humeral fractures treated in the Second People′s Hospital of Dalian City from June 2015 to June 2016 were reviewed retrospectively and divided into the minimally invasive group (31 cases) and the traditional invasive group (32 cases) according to the different operation methods. The minimally invasive group was treated with minimally invasive percutaneous osteosynthesis and the traditional invasive group was treated with open reduction and internal fixation. The general situation (including operation time, intraoperative blood loss, hospital stays), pain degree, the recovery of shoulder function, patients′ satisfaction and the adverse reactions were compared between the two groups. Results The operation time, intraoperative blood loss, hospital stays in the minimally invasive group were shorter or less than those of the traditional invasive group (P < 0.05). After 7 d operation, the VAS score of the minimally invasive group was lower than that of traditional invasive group (P < 0.05). There were no significant differences in VAS scores between the two groups in 3, 6 months after operation (P > 0.05). After 15 d operation, the excellent and good rate of Neer shoulder function score of minimally invasive group was higher than that of the traditional invasive group (P < 0.05). There were no significant differences in excellent and good rate of Neer shoulder function score between the two groups in 3, 6 months after operation (P > 0.05). The patients′ satisfaction in the minimally invasive group was higher than that of traditional invasive group (P < 0.05). Conclusion Compared with open reduction and internal fixation, minimally invasive percutaneous osteosynthesis in the treatment of proximal humeral fractures has shorter operation time and hospital stays, less intraoperative blood loss, faster shoulder function recovery, less pain and higher patients′ satisfaction.