Proximal humeral fractures are complex lesions with difficult management problems and so they are a professional struggles for orthopaedic surgeons. In literature a lot of techniques of treatment are proposed for these kind of fractures. In our study we have reviewed 30 patients with a proximal humeral fracture (Neer 2-3) with a mean age of 75 years, treated in our clinic with Polarus nail, with a mean follow-up of 7 years.We obtained 73,3% of good and excellent results, in line with literature results. The complications involved 6 patients (20%) of our study, in particular 3 cases of proximal screw pull-out, 1 case of deep infection and 2 cases of acromioclavicula impingement. The aim of our study is a review of our cases, comparing them with the literature, analysing these kind of complex fractures and the type of treatments
