Soon, glass
scaffold that can help heal bone injuries
Washington:
Scientists have developed a type of glass implant that could help in
regeneration of injured bone.
The study
conducted by Missouri University of Science and Technology has found that it could
help in repairing the bones in the arms, legs and other areas of the body that
are most subject to the stresses of weight.
The
researchers reported that the glass implant, in the form of a porous
scaffolding, integrates with bone and promotes bone growth.
Lead
author Dr. Mohamed N. Rahaman, professor of materials science and engineering
said that this combination of strength and bone growth opens new possibilities
for bone repair.
Rahaman and his colleagues implanted bioactive glass
scaffolds into sections of the calvarial bones (skullcaps) of laboratory rats,
then examined how well the glass integrated with the surrounding bone and how
quickly new bone grew into the scaffold.
The scaffolds are manufactured in Rahaman`s lab through a process known as robocasting - a computer-controlled technique to manufacture materials from ceramic slurries, layer by layer - to ensure uniform structure for the porous material.
The researchers found that the bioactive glass scaffolds bonded quickly to bone and promoted a significant amount of new bone growth within six weeks.
While the skullcap is not a load-bearing bone, it is primarily a cortical bone.
The purpose of this research was to demonstrate how well this type of glass scaffolding - already shown to be strong - would interact with cortical bone.
The study was published in the journal Acta Biomaterialia.
Source:www.zeenews.india.com/news/health
30.07.2013
Indian
doctors give new life to African patient
Gurgaon:
Afflicted with a rare cancer that affected a large part of his face, leaving
intact only the eyes and a 10 per cent survival chance, a 22-year-old from
Congo has now received a new lease of life from a city-based hospital, which
reconstructed his facial structure.
Several
hospitals in India and abroad had given up hope for Nkosi who suffered 90 per
cent cancer in mouth, lip, cheeks, jaw bone and part of his tongue which left
him unable to speak and eat since past four years.
"This
is the sixth such case of its kind in the world. When Nkosi approached us five
months ago, his condition was horrific and his mother had lost all hopes after
her son was denied treatment everywhere," Rakesh Durkhure, who led a team
of surgeons who operated on Nkosi at Gurgaon based Paras hospital told PTI.
"The
poor guy had not been able to even speak, chew and eat for four years. His
mother used to feed him in drops," he said.
Several
hospitals in India and abroad had denied him treatment due to the risk of death
involved.
Durkhure performed the surgery in three stages with the final surgery slated in six months time.
"We have performed his surgery in three stages and finally been able to bring back his voice. A third surgery will be performed after six months when we will carve out his lips and mouth" the doctor said.
Durkhure performed the surgery in three stages with the final surgery slated in six months time.
"We have performed his surgery in three stages and finally been able to bring back his voice. A third surgery will be performed after six months when we will carve out his lips and mouth" the doctor said.
Only last week Nkosi`s teeth were brushed for the first time
in four years. "He got emotional and was in tears," said the doctor.
Source:www.zeenews.india.com/news/health
30.07.2013
Your visions
will become clear only when you can look into your own heart
C.G. Jung
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