نتایج جستجو برای: design fixation
تعداد نتایج: 1009857 فیلتر نتایج به سال:
BACKGROUND This study assessed the reduction in surgeon stress associated with savings in procedure time for mechanical fixation of an intraperitoneal onlay mesh (IPOM) compared to a traditional suture fixation in open ventral hernia repair. STUDY DESIGN Nine general surgeons performed 36 open IPOM fixation procedures in porcine model. Each surgeon conducted two mechanical (using ETHICON SECU...
این تکنیک طی 20 سال گذشته در درمان شکستگی های رایج فک و صورت مورد استفاده بوده است . زیرا عفونت کمتری را داراست . این تکنیک مخصوصا" برای بیماران فاقد همکاری، بیمارانی که نیاز به تحرک سریع فک دارند و یا نیاز سریع برای دسترسی به حفره دهان دارند(بیماران icu )، بیماران با نیازهای تغذیه ای خاص از جمله افراد دیابتی و الکلیک ، افرادی که شکستگی عفونی داشته و نیاز به open reduction دارند، افراد دچار بیم...
BACKGROUND The purpose of this study was to design a customized fixation plate for mandibular angle fracture using topological optimization based on the biomechanical properties of the two conventional fixation systems, and compare the results of stress, strain and displacement distributions calculated by finite element analysis (FEA). METHODS A three-dimensional (3D) virtual mandible was rec...
introduction fracture - dislocations of the talus are typically due to high energy injuries. displaced fracture - dislocations of the talus have poor outcomes in general and complications are common. although talar fracture is common and comprises the second most common tarsal fracture, bilateral fracture - dislocations of the talus are rare. not many reports regarding the subject can be found ...
objective: the aim of this study was to assess skeletal relapse in patients who underwent mandibular setback by bilateral sagittal split ramus osteotomy (bssro) and osteosynthesis wiring techniques. materials and methods: in this semi-experimental study, 10 patients (8 women, 2 men) with 3-8 millimeters overjet underwent mandibular setback with bssro, osteosynthesis wiring and inter maxillary f...
background distal radius fracture is common in all ages. mobility and wrist function is important. the choice of treatment should aim for optimal function with minimal complications. objectives in this study we compared two surgical approaches, open reduction and internal fixation (orif) and closed reduction with external fixation (cr + ef), for treatment of intra-articular distal radius fractu...
When performing cementless hip arthroplasty, it is critical to achieve firm primary mechanical stability followed by biological fixation. In order to achieve this, it is essential to fully understand characteristics of implant design. In this review, the authors review fixation principles for a variety of implants used for cementless hip replacement and considerations for making an optimal sele...
BACKGROUND Controversy exists regarding the optimal treatment for patients with displaced intracapsular fractures of the proximal femur. The recognised treatment alternatives are arthroplasty and internal fixation. The principal criticism of internal fixation is the high rate of non-union; up to 30% of patients will have a failure of the fixation leading to revision surgery. We believe that imp...
STUDY DESIGN Three types of anterior thoracolumbar multisegmental fixation were biomechanically compared in construct stiffness and rod-screw strain. OBJECTIVES To investigate the effects of rod diameter and rod number on construct stiffness and rod-screw strain in anterior thoracolumbar multisegmental instrumentation. SUMMARY OF BACKGROUND DATA No studies have been undertaken to investigat...
Background: Controversy exists regarding the optimal treatment for patients with displaced intracapsular fractures of the proximal femur. The recognised treatment alternatives are arthroplasty and internal fixation. The principal criticism of internal fixation is the high rate of non-union; up to 30% of patients will have a failure of the fixation leading to revision surgery. We believe that im...
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