Dynamic stabilisation with Coflex
As a result of the wear process on the spinal column connected with a height loss of the disc and protrusion of the same in the spinal canal, spinal stenosis (narrowing of spinal canal) can appear. At an extra folding of the so-called ligamentum flavum and a wear of the vertebral joints, a variable degree of instability may result and a further narrowing of the spinal canal from behind. Light or incipient instability leads merely to a higher mobility of the segment and creates a so-called hypermobile segment i.e. a segment that is moving more than others. Thereby the pain is often intensified when the patient bends backward. The segment is often in a hyperlordosis and the pressure on the facet joint is greater and the disc is being pressed further into the spinal canal. A bending forward relieves the spinal canal and the facet joints.
This will be visible in X-ray functional images. This segment can be, especially when bending backwards (Extension), “unfolded”. In such a case, the implantation of a Coflex between the spinous processes can limit the bending backwards and increase the intervertebral which alleviates the pain, since the disc and facet joints can also relax and the pressure on the nerves is reduced.