Zobrazeno 1 - 10
of 33
pro vyhledávání: '"J. D. Blaha"'
Publikováno v:
Journal of Orthopedics and Rheumatism. 1
Malalignment of the lower extremity may be a cause for gonarthrosis and failure of total knee prosthetic components. Neutral lower limb alignment is considered straight alignment of the axes formed from the center of the femoral head to the center of
Publikováno v:
Journal of Biomechanical Engineering. 128:7-12
Many cementless implant designs rely upon a diaphyseal press-fit in conjunction with a porous coated implant surface to achieve primary or short term fixation, thereby constraining interface micromotion to such a level that bone ingrowth and conseque
Autor:
Timothy L. Norman, Vincent Kish, Thomas A. Gruen, T. S. Smith, E. S. Ackerman, A. J. Yates, J. D. Blaha
Publikováno v:
Journal of Biomechanical Engineering. 128:13-17
Cementless total hip femoral components rely on press-fit for initial stability and bone healing and remodeling for secondary fixation. However, the determinants of satisfactory press-fit are not well understood. In previous studies, human cortical b
Publikováno v:
HIP International. 12:55-72
BackgroundThis report presents the initial experience with the use of a grit-blasted, press-fit femoral prosthesis.MethodsThe first 300 consecutive primary total hip arthroplasty procedures using a collarless, three-dimensional tapered, straight, tit
Autor:
Steffen J. Breusch, J. D. Blaha, M. Lukoschek, T. Reitzel, Timothy L. Norman, Ulrich Schneider
Publikováno v:
The Journal of Arthroplasty. 15:921-927
Sixteen paired human cadaver femora were prepared using conventional broaches. Cancellous bone was irrigated with 1 L pulsed lavage in one femur and 1 L syringe lavage in the contralateral femur. The specimens were embedded in specially designed pots
Publikováno v:
Journal of Biomechanical Engineering. 118:399-404
A tapered femoral total hip stem with a debonded stem-cement interface and an unsupported distal tip subjected to constant axial load was evaluated using two-dimensional (2D) axisymmetric finite element analysis. The analysis was performed to test if
Publikováno v:
Journal of Biomedical Materials Research. 29:495-501
Compressive creep testing of cylindrical specimens machined from two commercial self-polymerizing acrylic bone cements demonstrated measurable creep strains with higher creep strains for the hand-mixed cement specimens compared to vacuum-mixed cement
Publikováno v:
Journal of biomechanics. 46(5)
Stem-cement and cement-bone interfacial failures as well as cement fractures have been noted in cemented total hip arthroplasty (THA) as the cause of aseptic loosening. Attempts to reduce the risk of femoral component loosening include improving the
Publikováno v:
Experimental Techniques. 24:19-21
A text fixture was developed to apply internal pressure to cylindrical specimens. The agreement between the calculated and measured strain from the hoop and longitudinal gages from the aluminum specimen and the hoop gages from the human bone specimen
Autor:
P. E. Keeting, M. B. Rice, F. J. Secreto, M. Pacurari, A. Grover, M. Kantorow, J. D. Blaha, A. P. Bidwai
Publikováno v:
Calcified tissue international. 73(6)
Reports that estrogen treatment modulates arachidonic acid metabolism by bone and bone cells are found in the literature. However, conflicting indications of the relationship that exists between estrogen and arachidonic acid metabolism emerge from th