Influence of the distal femoral resection angle on the principal stresses in ceramic total knee components

Ceramics for joint replacement

“…New trends are found in the application of large femoral heads for enhanced range of motion and dislocation stability as well as in the application of ceramics in revision tha (Pandorf, 2007). With substantial improvements in the mechanical properties, ceramic components for total knee replacement have been reintroduced (mittelmeier et al, 2006;Bergschmidt et al, 2012). hence, improved long-term implant survival rates based on the high corrosion resistance and reduced release of polyethylene wear particles can be expected in tKa in the near future.…”

“…The clinical evaluation showed significant improvements in all scores from the pre-operative to the post-operative evaluations (Bergschmidt et al, 2012).…”

“…Numerical simulation using finite element analysis (FEA) was carried out in order to identify risk factors firstly in terms of force transmission between implant and bone stock in situ (schultze et al, 2007), and secondly with regard to the implantation process and intraoperative impaction (Kluess et al, 2010(Kluess et al, , 2012. simulating the in-situ situation, higher stress regions occurred in the area of the force transmission and in the adjoining transitional radii of the femoral component (Fig.…”

Midterm Results After Coated and Uncoated TKA: A Randomized Controlled Study

“…11 Ceramic femoral components can be used, 23,24 but these implants are expensive, and their application is more demanding. 25,26 Therefore, in most patients with a metal hypersensitivity, coated standard implants are used. In addition to demonstrating reduction of metal ion release, these coatings demonstrated superior abrasive properties and reduction of polyethylene wear.…”

Computational modelling of motion at the bone–implant interface after total knee arthroplasty: The role of implant design and surgical fit

“…stemmed or stemless) can exert a large influence on the global motions between bone and implant [20][21][22][23]. Recent studies have suggested that implant design features such as size and placement of distal femoral pegs [24], anterioposterior slope of the femoral component [25], and angle of fit of the implant [26], may also play a role in the long term survival of the prosthesis.…”