06576016 is referenced by 294 patents and cites 13 patents.

Method and apparatus for promoting a spinal fusion between neighboring vertebrae. Apparatus may be located within the intervertebral disc space and preferably includes a pair of engaging plates for contacting the vertebrae. An alignment device may be used to alter the vertical distance between the engaging plates to customize the apparatus to fit a given patient. In one embodiment, the alignment device includes a pair of struts having a predetermined height and extending between the engaging plates from an anterior end to a posterior end of the apparatus. In another embodiment, the alignment device includes a rotatable connector and cam pins for adjusting the distance between the engaging plates. The alignment device is preferably adapted to vary the distance between the engaging plates such that the height of the apparatus proximate the anterior end is greater than that proximate the posterior end whereby the natural lordosis of the spine is maintained after the apparatus is installed. The apparatus may further include a load-sharing member to allow stress to be imparted to bone in the vicinity of the apparatus to promote bone growth in accordance with Wolff's law.

Title
Adjustable height fusion device
Application Number
9/605200
Publication Number
6576016 (B1)
Application Date
June 27, 2000
Publication Date
June 10, 2003
Inventor
Richard D Guyer
Dallas
TX, US
Ralph F Rashbaum
Dallas
TX, US
Erik J Wagner
Allen
TX, US
Stephen H Hochshuler
Dallas
TX, US
Agent
Meyertons Hood Kivlin Kowert & Goetzel P C
US
Agent
Eric B Meyertons
US
Assignee
Spinal Concepts
TX, US
IPC
A61F 2/44
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