Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Carlos Alfonso Fonseca Ulloa"'
Autor:
Florian Kuhn, Rasmus Johannes Clausing, Alexander Stiller, Carlos Alfonso Fonseca Ulloa, Christian Foelsch, Markus Rickert, Alexander Jahnke
Publikováno v:
Journal of orthopaedics. 33
Evaluation of the mechanical behavior of the microstructure of cancellous bone seems important for the understanding of the mechanical behavior of bone. Prevention and treatment of fragility fractures due to osteoporosis is a major challenge accordin
Autor:
Rasmus Johannes Clausing, Alexander Stiller, Florian Kuhn, Carlos Alfonso Fonseca Ulloa, Christian Fölsch, Marian Kampschulte, Gabriele A. Krombach, Markus Rickert, Alexander Jahnke
Publikováno v:
Clinical Biomechanics. 102:105875
Autor:
Gafar Adam Ahmed, Alexander Jahnke, Markus Rickert, Bernd Ishaque, Carlos Alfonso Fonseca Ulloa, Anja Seeger
Publikováno v:
Medical Engineering & Physics. 86:122-127
The continuous improvement of minimally invasive hip endoprostheses surgery comes with a change in geometries of surgery instruments like the broach handles. Consequently, depending on the handles' curvature this results in a deviation between handle
Autor:
Christian Fölsch, Alexander Jahnke, Gafar Adam Ahmed, Linda Auge, Carlos Alfonso Fonseca Ulloa, Bernd Ishaque, Jessica Loke, Markus Rickert
Publikováno v:
J Orthop
Introduction Good osteointegration of implants requires sufficient primary stability. Aim of this study was to examine the influence of screw fixation on the primary stability of press-fit cups. Methods Two press-fit acetabular cups were tested with
Autor:
Helge Hudel, Gafar Adam Ahmed, Alexander Jahnke, Carlos Alfonso Fonseca Ulloa, Mario Gernandt, Markus Rickert, Dirk Stolz
Publikováno v:
Journal of Biomechanics. 93:132-139
Following surgical Achilles tendon reconstruction surgery, there is a distinct trend towards an early and faster rehabilitation protocol to avoid muscle atrophy. However, this procedure involves the risk of a higher complication rate. In order to red
Autor:
Christian Fölsch, Markus Rickert, Carlos Alfonso Fonseca Ulloa, Axel Pruss, Katrin S. Lips, Alexander Jahnke, Julian Dharma
Publikováno v:
Cell and Tissue Banking
Allogeneic bone derived from living donors being necessary to match demand for bone transplantation and thermodisinfection of femoral heads is an established sterilization method. During the thermodisinfection the peripheral bone is exposed to maximu
Autor:
Bernd Ishaque, Carlos Alfonso Fonseca Ulloa, Alexander Jahnke, Markus Rickert, J.B. Seeger, Suleiman Ghandourah, Gafar Adam Ahmed
Publikováno v:
Journal of biomechanical engineering. 142(12)
Cementless straight stems show very good survival rates. However, the more distal force application of straight stems may lead to release-related proximal stress-shielding. Nevertheless, this technical brief had the objective of conducting a biomecha
Autor:
Markus Rickert, Carlos Alfonso Fonseca Ulloa, Stefan Schroeder, Bernd Ishaque, Gafar Adam Ahmed, Alexander Jahnke
Publikováno v:
Journal of Orthopaedic Research®. 36:2745-2753
Aseptic loosening is the main reason for revision of total hip arthroplasty, and relative micromotions between cementless acetabular cups and bone play an important role regarding their comparatively high loosening rate. Therefore, the aim of the pre
Autor:
Gerhard Walter Jahnke, Gafar Adam Ahmed, Markus Rickert, Alexander Jahnke, Jörn Bengt Seeger, Carlos Alfonso Fonseca Ulloa, Bernd Ishaque
Publikováno v:
Clinical Biomechanics. 52:49-56
Background The resultant hip force causes a varus torque which must be compensated by a shear force couple depending on the stem alignment of the prosthesis. Since the prosthesis is substantially less flexible than the bone, the interior of the femur
Autor:
Markus Rickert, Gert-Peter Brüggemann, Carlos Alfonso Fonseca Ulloa, Alexander Jahnke, I. Oswald, Anja Niehoff
Publikováno v:
Journal of Biomechanics. 64:226-230
In order to maintain their native properties, cryopreserved tendons are usually used in biomechanical research and in transplantation of allogenic tendon grafts. The use of different study protocols leads to controversy in literature and thus complic