نتایج جستجو برای: bone sample
تعداد نتایج: 706191 فیلتر نتایج به سال:
AIM A collaborative exercise with several institutes was organized by the Forensic DNA Service (FDNAS) and the Institute of the Legal Medicine, 2nd Faculty of Medicine, Charles University in Prague, Czech Republic, with the aim to test performance of different laboratories carrying out DNA analysis of relatively old bone samples. METHODS Eighteen laboratories participating in the collaborativ...
OBJECTIVES The aim of this prospective study was to assess the clinical and histologic outcomes obtained with calcium sulfate (CS) used as a filler material in fresh premolar and molar postextraction sockets. MATERIALS AND METHODS Sixty premolar or molar postextraction sockets were filled with CS. Among the 60 grafted sockets, after 3 months, 50 underwent implant placement and clinical assess...
BACKGROUND Exchange nailing is reported to have a high success rate for aseptic tibial nonunions. However, sample sizes in all series in the literature were small, and the influence of a concomitant fibulotomy was not evaluated. METHODS Fifty-four aseptic tibial shaft nonunions for 1.2 approximately 4.3 (mean, 2.4) years were treated with exchange nailing. Indications for this technique inclu...
The purpose of this study was to evaluate the clinical outcomes of osteonecrosis of the femoral head after autologous bone marrow stem cell implantation. We searched the PubMed, Embase and Web of Science databases and included all case-control trials that reported on the clinical outcomes of osteonecrosis progression, incidence of total hip arthroplasty and improvement in Harris hip scores. Ove...
OBJECTIVE In ex vivo hip fracture studies femoral pairs are split to create two comparable test groups. When more than two groups are required, or if paired femurs cannot be obtained, group allocation according to bone mineral density (BMD) is sometimes performed. In this statistical experiment we explore how this affects experimental results and sample size considerations. METHODS In a hip f...
The application of porous bio-nanocomposites polymer has greatly increased in the treatment of boneabnormalities and bone fracture. Therefore, predicting the mechanical properties of these bio-nanocompositesare very important prior to their fabrication. Investigation of mechanical properties like (elasticmodulus and hardness) is very costly and time-consuming in experimental t...
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