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Expandable Articulating Intervertebral Implant with Limited Articulation

Abstract: 

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 implants and cages are described, along with embodiments of facet replacement devices and instruments for insertion. Methods of insertion are also described. 

Full Text:
US Patent and Trademark Office

Patent Number: 
9,579,124
Date Of Issue: 
02/28/2017
Inventors: 

Charles R. Gordon; Corey T. Harbold; Heather S. Hanson