Dynamic Roentgen stereophotogrammetry has proven valuable in the evaluation of fixation for hip and knee arthroplasty, as early RSA evaluations have shown high predictive value for later aseptic component loosening. In contrast, Dynamic RSA makes it possible to accurately assess both micro movements in the fixation interface and kinematics of the prosthetic components in three dimensions, during active motions. Dynamic Roentgen stereophotogrammetry Dynamic Roentgen stereophotogrammetry (also referred to as dynamic RSA) is a modern and sophisticated x-ray recording method, used to measure real-time 3D motions of prostheses and bones during motion with high accuracy. It is mostly used in orthopedic research settings and
1890s in Western fashion 1890s in Western fashion Fashion in the 1890s in European and European-influenced countries is characterized by long elegant lines, tall collars, and the rise of sportswear. It was an era of great dress reforms led by the invention of the drop-frame safety bicycle, which allowed women the opportunity to ride bicycles more comfortably, and therefore, created the need for appropriate clothing. Fashionable women's clothing styles shed some of the extravagances of previous decades (so that skirts were neither crinolined as in the 1850s, nor protrudingly bustled in back as in the late 1860s and mid-1880s, nor tight as in the