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US006974478B2

(12) United States Patent (io) Patent No.: US 6,974,478 B2

Reiley et al. (45) Date of Patent: Dec. 13,2005

(54) PROSTHESES, SYSTEMS AND METHODS
FOR REPLACEMENT OF NATURAL FACET
JOINTS WITH ARTIFICIAL FACET JOINT
SURFACES

(75) Inventors: Mark A. Reiley, Piedmont, CA (US);

Robert M. Scribner, Niwot, CO (US);
James Davidson, Irvine, CA (US)

(73) Assignee: Archus Orthopedics, Inc., Redmond,
WA (US)

( * ) Notice: Subject to any disclaimer, the term ol this patent is extended or adjusted under 35 U.S.C. 154(b) by 74 days.

(21) Appl. No.: 10/158,563

(22) Filed: May 30, 2002

(65) Prior Publication Data

US 2003/0028250 Al Feb. 6, 2003

Related U.S. Application Data

(63) Continuation-in-part of application No. 10/067,137, filed on Feb. 4, 2002, now Pat. No. 6,811,567, which is a continuation-in-part of application No. 09/693, 272, filed on Oct. 20, 2000, now Pat. No. 6,610,091.

(60) Provisional application No. 60/160,891, filed on Oct. 22, 1999.

(51) Int. CI.7 A61F 2/44; A61B 17/56

(52) U.S. CI 623/17.11; 606/61

(58) Field of Search 623/17.11-17.16;

606/60, 70-73, 75

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U.S. PATENT DOCUMENTS

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OTHER PUBLICATIONS

Head, WC, "Wagner surface replacement arthroplasty of the hip. Analysis of fourteen failures in forty-one hips", J Bone Joint Surg. Am., (Mar. 1981) 63(3), Medline abstract (one page).

Khoo, LT et al., "A biomechanical analysis of the effects of lumbar fusion on the adjacent vertebral motion segment", Proceedings of the 2000 Annual Meeting of the North American Spine Society, New Orleans. Kotani, Y. et al., "The effects of spinal fixation and destabilization on the biomechanical and histologic properties of spinal ligaments. An in vivo study.", Spine, (Mar. 15, 1998) 23(6), Medline abstract (2 pages). Lemaire, JP et al., "Intervertebral disc prosthesis: results and prospects for the year 2000", Clinical Orthopaedics and Related Research, No. 337, pp. 64-76. Nagata, H. et al., "The effects of immobilization of long segments of the spine on the adjacent and distal facet force and lumbrosacral motion", Spine, (Dec. 1993), 18(16):24712479, (9 pages).

Nibu, K. et al., "Multidirectional stabilizing potential of BAK interbody spinal fusion system for anterior surgery [see comments]", J Spinal Discord, (Aug. 1997), 10(4), Medline abstract (one page).

Tsantrizos, A. et al., "Segmental stability and compressive strength of posterior lumbar interbody fusion implants", Spine, (Aug. 1, 2000) 25(15), Medline abstract (one page).

* cited by examiner

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