An artificial functional spinal unit including an expandable intervertebral implant that can be inserted via a posterior surgical approach and used with one or more facet replacement devices to provide an anatomically correct range of motion is described. Lordotic and non-lordotic expandable, articulating...http://www.google.es/patents/US20050273175?utm_source=gb-gplus-sharePatente US20050273175 - Expandable articulating intervertebral implant
Número de solicitud: 11/134,073 Número de publicación: US 2005/0273175 A1 Fecha de presentación: 20 May 2005 Patente emitida: US8118871 ( Fecha de emisión 21 Feb 2012)
