The intervening cancellous tissue is called the diplo? and this, in the nasal region of the skull, becomes absorbed so as to leave spaces filled with air the paranasal sinuses between the two tables.
42.
On histological section, trabeculae of a cancellous bone can look like septa, but in three dimensions they are topologically distinct, with trabeculae being roughly rod or pillar-shaped and septa being sheet-like.
43.
Water has an attenuation of 0 Hounsfield units ( HU ), while air is " 1000 HU, cancellous bone is typically + 400 HU, cranial bone can reach 2000 HU or more ( os temporale ) and can cause artifacts.
44.
The hypothesis was that harvesting a mixture of articular cartilage and cancellous bone would combine pluripotent cells of the cancellous bone with cartilage extracellular matrix and growth factors and when exposed to continuous motion, hyaline-like cartilage would be stimulated to form.
45.
The hypothesis was that harvesting a mixture of articular cartilage and cancellous bone would combine pluripotent cells of the cancellous bone with cartilage extracellular matrix and growth factors and when exposed to continuous motion, hyaline-like cartilage would be stimulated to form.
46.
Paste grafting involves replacing damaged cartilage with autologous cartilage and cancellous bone from the intercondylar notch in the center of the knee that is first morselized into a paste ( typically with hydroxyapatite ) to better fill the defect and more successfully promote chondrocyte activity and cartilage formation.
47.
While there he continued his active participation at the Sun Valley Workshops where he interacted with participants to develop cancellous bone histomorphomety ( 1977 ), generate and refine the mechanostat hypothesis ( 1987 ), and the ever-evolving Utah Paradigm of Bone Physiology ( 1997 ), and many, many more.
48.
The inferior alveolar artery and its incisor branch during their course through the substance of the bone give off a few branches which are lost in the cancellous tissue, and a series of branches which correspond in number to the roots of the teeth : these enter the minute apertures at the extremities of the roots, and supply the pulp of the teeth.
49.
In adolescence, most people accumulate bone mass, with bones reaching maximum growth by the mid-20s . ( Exceptions may include teen-agers with anorexia or girls who are very thin and so active that they fail to menstruate . ) After the mid-20s, bone resorption gradually exceeds rebuilding, and bone is slowly lost, particularly the bones of the vertebrae, wrists and part of the thigh known as trabecular and cancellous bone.
50.
Since ONJ has been diagnosed in many patients who did not take bisphosphonates, it is thus logical to assume that bisphosphonates are not the only factor in ONJ . While the oversuppression of bone turnover seems to play a major role in aggravating the disease process, other factors can and do initiate the pathophysiological mechanisms responsible for ONJ . In non-bisphosphonate cases of ONJ, it is mainly the cancellous portion of the bone and its marrow content that are involved in the disease process.
