Georg N. Duda

TL;DR: Using extrusion-based 3D printing to fabricate acellular, gelatin-based scaffolds with programmed strut spacings with high paracrine activity substantially improved endothelial cell migration in a chemotaxis assay, increased single cell migration kinetics such as velocity, and stimulated the formation of robust tubular structures demonstrate how 3D biomaterial design can instruct and enhance the regenerative paracine activities of MSCs.

TL;DR: Evaluating the error of tibio-femoral joint contact force calculations using musculoskeletal simulation compared to in vivo measured JCFs in subjects with instrumented total knee endoprostheses during squat exercises indicates that loading estimations from early musculated gait models at both high and low knee joint flexion angles should be interpreted carefully.

TL;DR: In this article, the 3-D stiffness matrices of different Ilizarov fixator configurations were determined and compared, and a distinct direction dependence of the fixator stiffness was observed, increasing the number of rings led to a stiffness increase of up to 50% especially in bending.

TL;DR: The results indicate that restoring the anatomical hip centre to its anatomical mediolateral position could help to reduce joint loads and add to the longevity of the reconstruction.

TL;DR: The feasibility of four-bar linkage mechanisms in addressing knee kinematics is assessed and a new approach that is capable of accounting for lengthening characteristics of the ligaments, including possible laxity, as well as the internal/external rotation of the joint is proposed.