The present disclosure concerns implants to at least partially replace the nucleus of a spinal disc. In one embodiment, a prosthetic structure is provided which includes a bag having a fixation component, the bag operable to contain at least one internal implant within the bag. In another embodiment,...http://www.google.se/patents/US20070168042?utm_source=gb-gplus-sharePatent US20070168042 - Devices and methods for disc replacement
