Osteoporosis is first observed in the cancellous bone
of the spine and pelvis.
(3) To explore the influences of two different QCT scan resolutions and six different element sizes on the QCT/FEA outcomes of bovine vertebral cancellous bone
In our surgical procedure the vertical osteotomies are convergent and oblique, going from the outer surface of the vestibular cortex to the cancellous bone
. In this way the distance between the two vertical osteotomies is greater on the outer side than on the inner side of the vestibular cortical plate.
Parietal and frontal bones are relatively rich in cancellous bone
and are more commonly affected.
Caption: FIGURE 3: No lysis between cement and cancellous bone
After getting the cortical bone geometry the cancellous part was modeled by subtracting the tibia model with the shell model to obtain cancellous bone
geometry as shown in Fig.
Considering the limitations of transferring the findings of this study to the clinical aspects, it should be highlighted that the screws' bore taper allow better adaptation to the vertebra due to sticking to the cancellous bone
(Lill et al.).
To incorporate realistic material for bone tissues in maxilla or mandible the FEM may employ full orthotropy for cortical bone as the elastic behavior in cortical bone approximates to an orthotro- pic materials and transversely isotropic for cancellous bone
. Orthotropy is a form of anisotropy in which the internal configuration of the material results in unique elastic behavior along the three orthogonal axis of the material.
Thus, the Duetto SI stem was developed as a stem fitting the skeleton of Japanese by Professor Itoman while maintaining the characteristic: conservation of cancellous bone
and bone marrow.
Set to launch in February, ExoShape, according to the company, is the only femoral fixation device fabricated completely out of PEEK Altera polymer and offers dual locking modes in cancellous bone
and at aperture to achieve complete anatomic ACL reconstruction.
Two scans parallel to the reference line and 1.75 and 2.00 mm distal to the growth plate were evaluated regarding the bone mineral density of the whole tibia metaphysis, the cancellous bone
density and the cortical bone density.
Both anchors are designed to independently engage cortical and cancellous bone
, maximizing pull-out strength and potentially minimizing re-tears.