Bone resection apparatus and method for knee surgery

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US007780671B2

(12;

United States Patent

Berger et al.

(io) Patent No.: (45) Date of Patent:

US 7,780,671 B2 Aug. 24, 2010

(54) BONE RESECTION APPARATUS AND METHOD FOR KNEE SURGERY

(75) Inventors: Richard A. Berger, Chicago, IL (US);

Adam H. Sanford, Warsaw, IN (US)

(73) Assignee: Zimmer Technology, Inc., Warsaw, IN (US)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 477 days.

(21) Appl.No.: 11/337,283

(22) Filed: Jan. 23, 2006

(65) Prior Publication Data

US 2007/0173854 Al Jul. 26, 2007

(51) Int. CI.

A61B 17/58 (2006.01)
A61B 17/60 (2006.01)

(52) U.S. CI 606/88; 606/79

(58) Field of Classification Search 606/79,

606/82, 86 R, 87, 88 See application file for complete search history.

(56) References Cited

U.S. PATENT DOCUMENTS

606/88

A bone resection apparatus and its method of use for knee surgery are presented. In one aspect of the invention, the apparatus includes a spacer and a tibial cut guide. The spacer has a first surface engageable with the cut distal femoral bone and a second surface opposite the first surface engageable with the uncut proximal tibial bone in joint articulating relationship. The spacer further includes a cut guide support. The tibial cut guide has a cutter guide defining a cut plane and a support engaging element engageable with the cut guide support. The cut guide support and support engaging element cooperate to position the cut plane in relative to the first surface.

15 Claims, 8 Drawing Sheets

Page 2

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