| abstract |
A spinal nucleus implant is provided which includes a braided three-dimensional reinforcement member having a polymeric matrix imbued therein, the implant configured to have a shape consistent with a cavity within an intervertebral disc space. The polymeric matrix may be a fluid absorbing polymer, e.g., a hydrogel or a substantially non-fluid absorbing in-situ curable elastic polymer. A method of making a spinal nucleus implant is provided which includes providing a braided three-dimensional reinforcement member configured and dimensioned to have a shape consistent with a cavity in an intervertebral space and infusing the braided three-dimensional reinforcement member with a liquid polymer capable of forming a polymeric matrix. Also provided is a spinal nucleus implant including a three-dimensional reinforcement member adapted and configured to undergo anisotropic expansion, the implant configured to have a shape consistent with a cavity within an intervertebral disc space. A method of treating a degenerating intervertebral disc includes creating an incision in an annulus; removing at least a portion of a nucleus pulposus; and inserting, through the incision, a spinal nucleus implant according to the present disclosure. |