08277507 is referenced by 7 patents and cites 531 patents.

Spacerless artificial disc replacements (ADR) are disclosed. One preferred embodiment includes two saddle-shaped components to facilitate more normal spinal flexion, extension, and lateral bending while limit axial rotation, thereby protecting the facet joints and the annulus fibrosus (AF). Either or both of the superior and inferior components are made of a hard material such as chrome cobalt, titanium, or a ceramic including alumina, zirconia, or calcium phosphate. The articulating surfaces of the ADR are also preferably highly polished to reduce friction between the components. Metals, alloys or other materials with shape-memory characteristics may also prove beneficial.

Title
Spacerless artificial disc replacements
Application Number
12/789925
Publication Number
8277507 (B2)
Application Date
May 28, 2010
Publication Date
October 2, 2012
Inventor
David Tompkins
Milford
OH, US
Bret A Ferree
Cincinnati
OH, US
Agent
Lerner David Littenberg Krumholz & Mentlik
Assignee
SpineCore
NJ, US
IPC
A61F 2/44
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