STELKAST PROVEN KNEE SYSTEM

K002281 · Stelkast Company · JWH · Aug 17, 2000 · Orthopedic

Device Facts

• Record ID: K002281
• Device Name: STELKAST PROVEN KNEE SYSTEM
• Applicant: Stelkast Company
• Product Code: JWH · Orthopedic
• Decision Date: Aug 17, 2000
• Decision: SESE
• Submission Type: Special
• Regulation: 21 CFR 888.3560
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

1. Total knee replacement due to osteoarthritis, osteonecrosis, rheumatoid arthritis and/or post-traumatic degenerative problems. 2. Revision of failed previous reconstructions where sufficient bone stock and soft integrity are present. 3. For cemented use only.

Device Story

Proven Cemented Knee and Cruciate Retaining System is a total knee arthroplasty implant; intended for surgical replacement of knee joint surfaces. Device components include femoral and tibial elements; designed for cemented fixation. Used by orthopedic surgeons in hospital operating room settings. Provides mechanical restoration of joint function; alleviates pain and improves mobility in patients with degenerative joint disease or failed prior reconstructions. Clinical benefit derived from structural replacement of damaged articular surfaces.

Clinical Evidence

No clinical data provided; substantial equivalence based on design, material, and intended use similarities to predicate devices.

Technological Characteristics

Total knee arthroplasty system; cemented fixation; metallic femoral and tibial components; polyethylene inserts. Standard orthopedic implant materials. No software or electronic components.

Indications for Use

Indicated for patients requiring total knee replacement due to osteoarthritis, osteonecrosis, rheumatoid arthritis, or post-traumatic degenerative conditions, and for revision of failed previous reconstructions where sufficient bone stock and soft tissue integrity exist. For cemented use only.

Regulatory Classification

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).

Predicate Devices

• 30276
• K000113

Submission Summary (Full Text)

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#### Public Health Service

AUG 1 7 2000

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Mr. Donald A. Stevens President StelKast Company 800. Vinial Street Suite B-210 Pittsburgh, Pennsylvania 15212

Re: K002281

Trade Name: Proven Cemented Knee and Cruciate Retaining System Regulatory Class: I I Product Code: JWH Dated: July 20, 2000 Received: July 24, 2000

Dear Mr. Stevens:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). You may, therefore, market the device, subject to the general control provisions of the Act. The general control 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 (Premarket Approval), 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 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.

This letter will allow you to begin marketing your device as described in your 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.

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Page 2 - Mr. Donald A. Stevens

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at [phone]. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at [phone]. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number [phone] or at [phone], or at its Internet address "http://www.fda.gov/cdrh/dsmamain.html".

Sincerely yours,

Dune R. Lochner

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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# 510(K) Number (if known): 30276 & K000113

### Additional Component to the Proven Cemented, Device Name: Semi-Constrained Total Knee System and Cruciate Retaining Femoral Component and Tibial Insert

# Indications For Use:

- 1. Total knee replacement due to osteoarthritis, osteonecrosis, rheumatoid arthritis and/or post-traumatic degenerative problems.
- 2. Revision of failed previous reconstructions where sufficient bone stock and soft integrity are present.
- 3. For cemented use only.

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# Concurrence of CDRH, Office of Device Evaluation (ODE)

Dune R. Lochner

(Division Sign-Off) Division of General Resorative Devices 510(k) Number LOOZZ8

**Prescription Use**
(Per 21 CFR 801.109)

Over-The-Counter Use OR

(Optional Format 1-2-96)