BACKGROUND AND PURPOSE Postoperative muscle strength and component alignment are important factors affecting functional results after total knee arthroplasty (TKA). We are not aware of any studies that have investigated the relationship between them. We therefore investigated whether coronal malalignment of the mechanical axis and/or of individual implant components would affect knee muscle str...

Collagen is a key component of the extracellular matrix, and by far the most prominent constituent of all load-bearing tissues. Its abundance and self-assembly capacities render it a practical scaffold material for tissue repair and regeneration applications. However, some difficulties exist in artificially regenerating functional collagen structures to match native tissues and their respective...

We conducted a retrospective study to investigate the effect of femoral bowing on the placement of components in total knee replacement (TKR), with regard to its effect on reestablishing the correct mechanical axis, as we hypothesised that computer-assisted total knee replacement (CAS-TKR) would produce more accurate alignment than conventional TKR. Between January 2006 and December 2009, 212 p...

INTRODUCTION Mechanical alignment deviation after total knee arthroplasty is a major reason for early loosening of the prosthesis. Achieving optimum cement penetration during fixation of the femoral and tibial component is an essential step in performing a successful total knee arthroplasty. Bone cement is used to solidify the bone and prosthesis. Thickness imbalance of bone cement leads to the...

In this study, we demonstrated a flexible and self-powered sensor based on piezoelectric fibers in the diameter range of nano- and micro-scales. Our work is distinctively different from previous electrospinning research; we fabricated this apparatus precisely via near-field electrospinning which has a spectacular performance to harvest mechanical deformation in arbitrary direction and a novel c...

beside developing strategies, success of organizations depends on alignment of strategies. one of the important functional areas in which companies develop strategies is operation. alignment of operation strategies is called horizontal alignment. the aim of this article is to present a model for alignment of operation strategies. to this end, an original algorithm has been presented by which ho...

We designed and built a novel model of deployed space telescope which can reliably align its segments to achieve the finest possible resolution. An asymmetric design both segment shapes their pupil locations were tested in simulation experiment. optimised sparse aperture for better spatial frequency coverage smoother images with less artifacts. The unique allow an easier identification alignmen...

preset study is conducted to evaluate strategic alignment between business and it in the view of organizational managers. present study has used luftman’s model on strategic alignment maturity and gartlen & shenks’ factors to promote alignment in order to evaluate alignment. research statistical population consists of managers at high education planning and research institute. no sampling is co...

Background It is unclear whether computer navigation can improve the accuracy and reliability of targeted lower limb alignment correction following open-wedge high tibial osteotomy (HTO). This meta-analysis was designed to compare the accuracy and reliability of limb alignment correction between computer navigated and conventional open-wedge HTOs. Methods Studies that compared postoperative c...

The laser alignment system ALMY was tested at the undulator section of the TESLA test facility. The positions of the undulator modules relative to each other have beendetermined with a precision of 0.1 mm, limited by the accuracy of the mechanical support of the sensors. Additionally, ALMY allows to measure movements or drifts over several days and we found that the undulator components are sta...