K Number
K041106
Date Cleared
2004-07-01

(64 days)

Product Code
Regulation Number
888.3560
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The Revision Knee System Components are indicated for rheumatoid arthritis; post-traumatic arthrilis; osteoarthritis; degenerative arthritis; and failed osteotomies, hemiarthroplasties; unicompartmental replacement; or total knee arthroplasties. The components are designed for use in primary and revision surgery, where the posterior cruciate ligament and one or both of the collateral ligaments (i.e. medial collateral and/or lateral ligament) are absent or incompetent. The Revision Knee Components are for single use only and are intended for implantation with bone cement.

Device Description

The Revision Femoral Knee Components are manufactured from Oxinium. Wedges and screws are also included in the Revision Knee System. The devices are based upon existing components of the Genesis II Total Knee System.

AI/ML Overview

This is a medical device submission (510(k)) for a Revision Knee System. These submissions typically focus on demonstrating substantial equivalence to a legally marketed predicate device, rather than presenting de novo clinical studies with acceptance criteria and performance metrics in the way that an AI/software device would.

Therefore, the provided document does not contain the information requested regarding acceptance criteria, study details, sample sizes, ground truth establishment, or expert involvement for a device performance study.

Instead, the document focuses on:

  • Intended Use: Similar to predicate device (Genesis II Constrained Knee System).
  • Device Description: Manufactured from Oxinium, based on existing components of the Genesis II Total Knee System.
  • Substantial Equivalence Information: The device (Revision Knee System) is substantially equivalent to existing components of the Genesis II Total Knee System due to similarities in design features, overall indications, and material composition.
  • Technological Comparison: Intended use, designs, and materials are substantially equivalent to predicate components. Mentions "Design Control Activities have been completed and the results indicate that the subject devices meet the requirements of the applicable FDA guidance documents," but no specific performance data or acceptance criteria are provided in the public summary.

In summary, this document describes a traditional medical device (knee implant) and its regulatory clearance process based on substantial equivalence, not a software/AI device that would typically have the requested data points.

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$\qquad K041106$

JUL 01 2004

510(K) Summary SMITH & NEPHEW REVISION KNEE SYSTEM

SUBMITTER'S NAME:Smith & Nephew, Inc., Orthopaedic Division
SUBMITTER'S ADDRESS:1450 Brooks Road, Memphis, TN 38116
SUBMITTER'S TELEPHONE NUMBER:901-399-6566
CONTACT PERSON:Kim P. Kelly
DATE SUMMARY PREPARED:April 27, 2004
TRADE OR PROPRIETARY DEVICE NAME:Revision Knee System
COMMON OR USUAL NAME:Femoral Components, Wedges, and WedgeScrews
CLASSIFICATION NAME:Knee Joint PatellofemorotibialMetal/Polymer/Metal Semi-ConstrainedCemented Prosthesis
DEVICE CLASS:Class II
PANEL CODE:Orthopedics/87

DEVICE INFORMATION:

A. INTENDED USE:

The Revision Knee System Components are indicated for rheumatoid arthritis; post-traumatic arthrilis; osteoarthritis; degenerative arthritis; and failed osteotomies, hemiarthroplasties; unicompartmental replacement; or total knee arthroplasties. The components are designed for use in primary and revision surgery, where the posterior cruciate ligament and one or both of the collateral ligaments (i.e. medial collateral and/or lateral ligament) are absent or incompetent. The Revision Knee Components are for single use only and are intended for implantation with bone cement.

These indications are the same as currently used for the Genesis II Constrained Knee System cleared via K962137.

B. DEVICE DESCRIPTION:

The Revision Femoral Knee Components are manufactured from Oxinium. Wedges and screws are also included in the Revision Knee System. The devices are based upon existing components of the Genesis II Total Knee System.

C. SUBSTANTIAL EQUIVALENCE INFORMATION:

The substantial equivalence of the Revision Knee System Components is substantiated by its similarities in design features, overall indications, and material composition to existing components contained within the Genesis II Total Knee System manufactured and distributed by Smith & Nephew, Inc.

D. SUMMARY OF TECHNOLOGICAL COMPARISON:

The intended use, designs, and materials of the Revision Knee System are substantially equivalent to the predicate components found in the previously cleared Genesis II System submissions. Design Control Activities have been completed and the results indicate that the subject devices meet the requirements of the applicable FDA guidance documents.

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Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with three stripes representing the department's mission. The eagle is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement.

Public Health Service

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

(JUL 0 1 2004

Ms. Kim Kelly Project Manager, Regulatory and Clinical Affairs Smith & Nephew, Inc. Orthopaedic Division 1450 East Brooks Road Memphis, Tennessee 38116

Re: K041106

Trade/Device Name: Smith & Nephew Revision Knee System Regulation Number: 21 CFR 888.3560 Regulation Name: Knee joint patellofemorotibial polymer/metal/polymer semiconstrained cemented prosthesis Regulatory Class: II Product Code: JWH Dated: May 28, 2004 Received: June 1, 2004

Dear Ms. Kelly:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, sucject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set

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Page 2 - Ms. Kim Kelly

forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (301) 594-4659. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html

Sincerely yours,

Muriam C. Provost

Po Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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Page ______ of________________________________________________________________________________________________________________________________________________________________

510(k) Number (if known):

Device Name: Revision Knee System

Indications For Use:

The Revision Knee System Components are indicated for rheumatoid arthritis; post-traumatic arthritis; osteoarthritis; degenerative arthritis; and failed osteotomies, hemiarthroplasties; unicompartmental ourcement; or total knee arthroplasties. The components are designed for use in primary and revision surgery, where the posterior cruciate ligament and one or both of the collateral ligaments (i.e. medial collateral and/or lateral collateral ligament) are absent or incompetent.

The Revision Knee Components are for single use only and are intended for implantation with bone cement.

IPLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDEDI

Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use /
(Per 21 CFR 801.109)

OR

Over-The-Counter Use_

(Optional Format 1-2-96)

Miriam C. Provost
(Division Sign Off)

Division of General, Restorative, and Neurological Devices

510(k) Number_ Ko41/06

§ 888.3560 Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis.

(a)
Identification. A knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace a knee joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. This generic type of device includes prostheses that have a femoral component made of alloys, such as cobalt-chromium-molybdenum, and a tibial component or components and a retropatellar resurfacing component made of ultra-high molecular weight polyethylene. This generic type of device is limited to those prostheses intended for use with bone cement (§ 888.3027).(b)
Classification. Class II.