Aim: Pertrochanteric fractures are extra-articular fractures of the femur, with the highest incidence in elderly. The annual incidence varies between 223 and 430 / 100,000 inhabitants. Confirmation of the diagnosis is clinical and radiological. The basic modality of pertrochanteric fracture treatment is surgical treatment. Two methods of surgical treatment of pertrochanteric fractures are currently used in traumatology. The first method is extramedullary osteosynthesis using a dynamic hip screw (DHS® DePuy Synthes). Another, newer method includes intramedullary osteosynthesis using a proximal femoral antirotational nail (Gamma nail ® Stryker and PFNA ® DePuy Synthes). Both methods have the same results described in the literature. Both operating methods are used at UHC Zagreb. In accordance with the world trend, the intramedullary method is gradually replacing the extramedullary method. The hypothesis of this research is that the group of patients treated in 2021 in most cases with PFNA method will have a lower mortality in the first 6 months from surgery compared to patients treated in 2013, predominantly with DHS method. The aim of this research was to compare the use of both methods at the Department of Traumatology and Bone and Joint Surgery in the eight-year period from 2013 to 2021, to compare treatment outcomes in patients treated with different methods and to identify perioperative factors that affect postoperative mortality. Materials and methods: 207 patients, treated at the Department of Traumatology and Bone and Joint Surgery of UHC Zagreb from 01.01.2013 until 31.12.2013. and from 01.01.2021. until 31.12.2021, were included in the research, with the aim of comparing mortality in the sixmonth postoperative period. Patients with radiologically confirmed pertrochanteric fractures who were surgically treated with DHS and PFNA methods were included. Data were retrospectively collected from BIS and statistically processed in Microsoft Office Excel 2007 and SPSS programs. Results: Statistical analysis revealed a total mortality of 28.6% (N=60). The difference in mortality in patients treated with DHS and PFNA was not statistically significant (p=0.865). The difference in mortality in the eight-year period is not statistically significant (p=0.546). As parameters statistically associated with mortality, regression analysis identified the age of patients (p=0.098), the time from injury to surgery in days (p=0.008) and the occurrence of perioperative and postoperative complications (p<0.001). Conclusion: The research hypothesis was not confirmed. No statistically significant difference was found in treatment outcome and mortality when using the DHS and PFNA methods.