Intervertebral hernia is a trouble of modern humanity. The treatments can not be called perfect. Recently, an international team of researchers from the U.S. and Italy have developed new technology that can help people cope with this disease.
Recall that between every two vertebrae is a shock absorbing intervertebral disc. It consists of an elastic shell (the annulus) and a gelatinous filling (nucleus pulposus). Intervertebral hernia occurs in the event of a rupture of the fibrous ring, resulting in the nucleus pulposus leak out and protrude into the spinal canal. This usually leads to pain and discomfort.
In some cases, patients are recommended surgical intervention. It involves removing the protruding nucleus pulposus and subsequent stitching of the gap in the ring (in this case, the disk becomes “deflated”) or disk replacement material. But there is a risk that the material may leak through the unprotected hole.
a Group of scientists under the direction of Professor Lawrence Bonasera (Lawrence Bonassar) of Cornell University have developed a technique, which includes a disk full of new material and its stitching.
Experts suggest to carry out this procedure after discotomy (dissection of the intervertebral disc) is the standard process used to remove the leaked material of the nucleus pulposus.
Initially, the disk gel is injected with hyaluronic acid, which, in fact, re-fills it. Then in the annular space, is submitted to gel with collagen and Riboflavin. When this gel is subsequently exposed to high intensity light, the photosensitive Riboflavin is activated. This process causes collagen fibers are sewn together, forming a solid “patch”.
Under the hcpathe action of light hardens the gel.Photo From Cornell University.
the cells from the outside of the ring migrate to this area, it is gradually replacing the natural biological tissue.
the Researchers have tested their technology on sheep. The introduction of all the necessary components they needed only five to ten minutes.
“This is really a new direction and a completely new approach to the treatment of people with herniated disc. Now we have a potential new option for them, so they no longer need to walk around with a big hole in the intervertebral disc and hope that the situation will not change for the worse. The new technique allows to completely restore the mechanical function of the disc,” — said Bonusar.
Scientific article on the results of a study published in the online edition of Science Translational Medicine.
we will Add that earlier the “Conduct.Science” (nauka.vesti.ru) talked about why back pain in response apes and bipedalism.