| http://www.w3.org/ns/prov#value | - In some embodiments one-piece implants and multi-piece implants are used together. [0150] A spinal disc implant for use in the invention may be formed from a wide variety of biocompatible polymeric materials, including elastic materials, such as elastomeric materials, hydrogels or other hydrophilic polymers, or composites thereof.
|
