Surgeons at the Cedars-Sinai Institute for Spinal Disorders describe in the August 1 issue of the journal Spine a minimally invasive approach that enables them to perform fusion surgery on the difficult-to-access upper lumbar region of the spine with a reduced risk of serious complications.
“Compared to previous options, this new approach is safer with respect to major blood vessels and abdominal organs,” said John J. Regan, M.D., co-director of the Institute. “The majority of patients experienced immediate improvement in their preoperative pain, and there were no vascular injuries or major complications.”
Minimally invasive procedures that employ thin instruments and laparoscopes with high-powered camera lenses typically result in shorter recoveries, less pain and lower risk of complications than open surgeries that require long incisions in the large muscles of the back. The preferred approach is from the front or side, sparing the back muscles entirely and positioning instruments at the forward edge of the spine where the placement of bone grafts and supportive devices help maintain the spine’s natural shape.
| Cedars-Sinai Medical Center
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A new building material developed at Empa is about to be launched on the market: "memory-steel" can not only be used to reinforce new, but also existing concrete structures. When the material is heated (one-time), prestressing occurs automatically. The Empa spin-off re-fer AG is now presenting the material with shape memory in a series of lectures.
So far, the steel reinforcements in concrete structures are mostly prestressed hydraulically. This re-quires ducts for guiding the tension cables, anchors for...
Scientists at the Max Planck Institute for Polymer Research (MPI-P) in Mainz (Germany) together with scientists from Dresden, Leipzig, Sofia (Bulgaria) and Madrid (Spain) have now developed and characterized a novel, metal-organic material which displays electrical properties mimicking those of highly crystalline silicon. The material which can easily be fabricated at room temperature could serve as a replacement for expensive conventional inorganic materials used in optoelectronics.
Silicon, a so called semiconductor, is currently widely employed for the development of components such as solar cells, LEDs or computer chips. High purity...
Augsburg chemists present a new technology for compressing, storing and transporting highly volatile gases in porous frameworks/New prospects for gas-powered vehicles
Storage of highly volatile gases has always been a major technological challenge, not least for use in the automotive sector, for, for example, methane or...
When we put water in a freezer, water molecules crystallize and form ice. This change from one phase of matter to another is called a phase transition. While this transition, and countless others that occur in nature, typically takes place at the same fixed conditions, such as the freezing point, one can ask how it can be influenced in a controlled way.
We are all familiar with such control of the freezing transition, as it is an essential ingredient in the art of making a sorbet or a slushy. To make a cold...
Thin organic layers provide machines and equipment with new functions. They enable, for example, tiny energy recuperators. In future, these will be installed...
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