en در رفتگی مفصل هیپ بدلیل هایپرفلکشن همراه با نیرو: گزارش یک مورد همراه با آنالیز مورفومتری CT اسکن Gross Anatomy Gross Anatomy Original Original <span style="font-size:14px;"><span style="font-family:Tahoma;"><span style="line-height:107%"><b>Introduction:</b> As a ball-and-socket synovial joint supported by a deep acetabulum, labrum, joint capsule, ligaments and related muscles, hip joint resists dislocation, however dislocations occur during heavy trauma. In this study, a case of hip dislocation caused by hyperflexion is reported.</span><br> <span style="line-height:107%"><b>Materials and Methods:</b> A Computed tomography (CT) scan was used to diagnose the hip dislocation and check its correct position following closed reduction. CT device was Hitachi&ndash;Supria 16/32 (Hitachi Medical Systems Europe [Holding] AG, Zug, Switzerland). Axial sections of 5 mm thickness were obtained from the pelvis and reconstructed in 3-dimensional view. </span><br> <span style="line-height:107%"><b>Case report:</b> A 36 year-old female referred to emergency department with typical position of adducted, flexed, internally rotated, and shortened right femur showing a possible posterior hip dislocation. The patient explained hip dislocation following forced hyperflexion of the hip joint during a domestic physical Altercation. The patient declared no joint dislocation before showing that she was not prone to joint dislocations inherently. Following CT scan, a posterior dislocation without severe injury to the bony structures was evident and after a closed reduction, CT scan showed correct position of the hip joint. </span><br> <span style="line-height:107%"><b>Conclusion:</b> Against the common belief that a heavy motor-vehicle collision is the cause of posterior hip dislocations, this study demonstrates that a hyperflexion of a normal hip can also cause posterior hip dislocation.&nbsp; </span></span></span><br> &nbsp; hip, dislocation, computed tomography 0 0 http://anatomyjournal.ir/browse.php?a_code=A-10-319-4&slc_lang=en&sid=1 Mehrdad Ghorbanlou mehrdad.ghorbanlou@gmail.com 10031947532846007875 10031947532846007875 Yes Department of anatomy, school of medicine, Iran university of medical sciences Fateme Moradi fmoradi406@gmail.com 10031947532846007876 10031947532846007876 No Department of Biology and Anatomical Sciences, School of medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran