A method and apparatus are provided to manipulate and revitalize a spinal
column disc, including an annulus, while minimizing or preventing the
removal of material comprising the disc. The method allows a device to be
inserted in the disc either through a pre-existing rupture or through an
opening formed in the front, back, or sides of the disc. Increasing the
space between the vertebra bounding the disc often is not necessary to
insert the device in the disc. The device generates internal traction or
other forces acting on the disc to alter the shape and dimension of the
disc. The shape and dimension of the disc is altered to relieve pressure
on nerves adjacent the disc. The shape and dimension of the disc is also
altered to draw nuclear hernias back into the disc and to produce a disc
shape and dimension that improves functioning of the disc.