en جراحی هیپ Hip surgery پژوهشی Research Article <div style="text-align: justify;"><span style="font-size:14px;"><span style="line-height:2;"><strong>Background and Objectives</strong>: Intertrochanteric fracture is a prevalent condition among the elderly that affects many people annually in both health and financial status. Type A2 intertrochanteric fracture is treated with surgical internal fixation either through a cephalomedullary nail (CMN) or a dynamic hip screw (DHS). This study compares radiological and clinical outcomes of CMN and DHS devices in patients with type A2 intertrochanteric fractures.<br> <strong>Methods</strong>: In this retrospective cohort study, hospitalized patients with A2 intertrochanteric fracture who were treated with either CMN or DHS devices from 2014 to 2023 were included in the study. All participants were assessed retrospectively regarding radiological outcomes (nonunion, varus malunion, and femoral medialization percentage) clinical outcomes, and incidence of pulmonary thromboembolism and deep vein thrombosis.&nbsp;<br> <strong>Results</strong>: A total number of 194 patients were included in the study. The patients who were operated on with DHS showed a better result regarding the incidence of varus malunion compared to CMN (P=0.009), while the incidence of nonunion and union failure, and percentage of femoral medialization showed no significant difference between groups. Despite a comparable total score of modified Harris hip score in both groups (P=0.669), DHS surgery had a better outcome in the walking distance status component (P=0.043).<br> <strong>Conclusion</strong>: Despite better outcomes of DHS surgery regarding the incidence of varus malunion and walking distance status, other outcomes of both groups did not show a significant difference. However, more prospective studies with multiple systematic follow-ups and radiographs are needed to confirm these findings.</span></span></div> <span style="font-size:11pt"><span style="line-height:115%"><span sans-serif="" style="font-family:Calibri,"><b><span style="font-size:12.0pt"><span style="line-height:115%"><span style="font-family:"Times New Roman","serif""></span></span></span></b></span></span></span> Intertrochanteric fractures, Dynamic hip screw, Cephalomedullary nailing, Harris hip score 165 172 http://jros.iums.ac.ir/browse.php?a_code=A-10-995-1&slc_lang=en&sid=1 Parsa Amirlou amirlooparsa@gmail.com 10031947532846006679 0009-0006-2343-1059 No Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. Amir Aminian amir_aminian@yahoo.com 10031947532846006680 10031947532846006680 Yes Department of Orthopedic Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.