CA2489522A1 - Knee computer-aided navigation instruments - Google Patents

Knee computer-aided navigation instruments Download PDF

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Publication number
CA2489522A1
CA2489522A1 CA002489522A CA2489522A CA2489522A1 CA 2489522 A1 CA2489522 A1 CA 2489522A1 CA 002489522 A CA002489522 A CA 002489522A CA 2489522 A CA2489522 A CA 2489522A CA 2489522 A1 CA2489522 A1 CA 2489522A1
Authority
CA
Canada
Prior art keywords
anterior
femur
block
tibia
proximal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002489522A
Other languages
French (fr)
Other versions
CA2489522C (en
Inventor
Gearoid Walsh
Sandeep K. Chauhan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Howmedica Osteonics Corp
Original Assignee
Howmedica Osteonics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Howmedica Osteonics Corp filed Critical Howmedica Osteonics Corp
Publication of CA2489522A1 publication Critical patent/CA2489522A1/en
Application granted granted Critical
Publication of CA2489522C publication Critical patent/CA2489522C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/15—Guides therefor
    • A61B17/154—Guides therefor for preparing bone for knee prosthesis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/15—Guides therefor
    • A61B17/154—Guides therefor for preparing bone for knee prosthesis
    • A61B17/155—Cutting femur
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/15—Guides therefor
    • A61B17/154—Guides therefor for preparing bone for knee prosthesis
    • A61B17/157—Cutting tibia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
    • A61B2034/2046—Tracking techniques
    • A61B2034/2055—Optical tracking systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A61B2090/3937—Visible markers
    • A61B2090/3945—Active visible markers, e.g. light emitting diodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis

Abstract

A bone cutting guide block has a saw guide surface thereon and has a body shaped to conform to the anterior-medial shape of the proximal left tibia and distal left femur and also to the anterior-lateral shape of the proximal right tibia or the distal right femur. The block is used by placing the curved inner surface adjacent the anterior-medial or anterior-lateral quadrant of either the tibia or the femur and utilizing images from a computer database utilizing an optical tracking system mounted on the cutting block and referencing to the bone to be cut. Utilizing the tracking system, the cutting guide is positioned preferably by hand in the proximal-distal direction to set the depth of the resection. The cutting guide surface is then oriented by hand to the correct varus-valgus and/or flexion-extension angles and pinned to the bone. Preferably, the block is pinned using a single pin in either the correct varus-valgus or flexion-extension position and then the other of the angles not initially selected is set by rotating the block about the single pin. Once the other of the varus-valgus or flexion-extension angles is determined, additional pins are utilized to fix the guide in position for use during the resection of the proximal tibia or distal femur. A second block is provided conforming to the anterior-lateral left tibia and femur as well as the anterior-medial shape of the right tibia and femur.
CA002489522A 2004-01-30 2004-12-09 Knee computer-aided navigation instruments Expired - Fee Related CA2489522C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/768,520 US20050171545A1 (en) 2004-01-30 2004-01-30 Knee computer-aided navigation instruments
US10/768,520 2004-01-30

Publications (2)

Publication Number Publication Date
CA2489522A1 true CA2489522A1 (en) 2005-07-30
CA2489522C CA2489522C (en) 2008-05-13

Family

ID=34654369

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002489522A Expired - Fee Related CA2489522C (en) 2004-01-30 2004-12-09 Knee computer-aided navigation instruments

Country Status (4)

Country Link
US (1) US20050171545A1 (en)
EP (1) EP1559375A1 (en)
AU (1) AU2005200355A1 (en)
CA (1) CA2489522C (en)

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Also Published As

Publication number Publication date
AU2005200355A1 (en) 2005-08-18
CA2489522C (en) 2008-05-13
EP1559375A1 (en) 2005-08-03
US20050171545A1 (en) 2005-08-04

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