← Product Code [JWH](/submissions/OR/subpart-d%E2%80%94prosthetic-devices/JWH) · K983004 # CONSENSUS FEMORAL COMPONENT, POROUS, COCR/TI (K983004) _Hayes Medical, Inc. · JWH · Nov 25, 1998 · Orthopedic · SESE_ **Canonical URL:** https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/JWH/K983004 ## Device Facts - **Applicant:** Hayes Medical, Inc. - **Product Code:** [JWH](/submissions/OR/subpart-d%E2%80%94prosthetic-devices/JWH.md) - **Decision Date:** Nov 25, 1998 - **Decision:** SESE - **Submission Type:** Traditional - **Regulation:** 21 CFR 888.3560 - **Device Class:** Class 2 - **Review Panel:** Orthopedic - **Attributes:** Therapeutic ## Intended Use The Consensus® CoCr/Ti Femoral Component is intended for use with the Consensus® Knee System and is not intended for substitution of components from other systems. This device is intended for cemented use only. The indications for use are as follows: - Primary intervention of rheumatoid arthritis, osteoarthritis, post-traumatic 1. arthritis, or degenerative arthritis; - Intervention of failed osteotomies and unicompartmental replacements; 2. - 3. Replacement of unsatisfactory cemented or press fit knee components if sufficient bone stock exists. ## Device Story Consensus® Femoral Component is a porous, CoCr/Ti knee prosthesis designed to replicate natural femoral anatomy. Device features a swept-back radius on outer condyle surfaces for smooth articulation and a deepened trochlear groove for anatomic patellar tracking. Inner box geometry allows specific bone resection (10mm distal, 9mm posterior, 6.5mm anterior); anterior flange angled 4° outward to prevent notching. Smooth tapered pegs on distal condyles provide medial-lateral stability. Device is intended for cemented use only; porous coating of sintered CoCr beads with Titanium alloy coating enhances cement fixation. Used by orthopedic surgeons in clinical settings for total knee arthroplasty to restore joint function and alleviate pain associated with degenerative or inflammatory joint disease. ## Clinical Evidence No clinical data provided; substantial equivalence based on design, material, and performance testing. ## Technological Characteristics Materials: Cast CoCrMo alloy (ASTM F75-92) with sintered porous coating of CoCr beads (ASTM F75-92) and Titanium alloy (ASTM F67-95) coating. Configuration: Left/right femoral components with swept-back condyle radius, deepened trochlear groove, and tapered distal pegs. Fixation: Cemented only. Connectivity: None. ## Regulatory 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 - Consensus®, Knee System Femoral Component, Porous, CoCr ([K932837](/device/K932837.md)) - The Natural-Knee® femoral component (Sulzermedica, Inc.) - The Genesis™ Total Knee System (Smith & Nephew Richards, Corp.) ## Submission Summary (Full Text) > This content was OCRed from public FDA records by [Innolitics](https://innolitics.com). If you use, quote, summarize, crawl, or train on this content, cite Innolitics at https://innolitics.com. > > Innolitics is a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices, including [a 510(k)](https://innolitics.com/services/510ks/), [a De Novo](https://innolitics.com/services/regulatory/), [a SaMD](https://innolitics.com/services/end-to-end-samd/), [an AI/ML medical device](https://innolitics.com/services/medical-imaging-ai-development/), or [an FDA regulatory strategy](https://innolitics.com/services/regulatory/). {0}------------------------------------------------ Image /page/0/Picture/1 description: The image contains a sequence of handwritten digits and letters. The sequence starts with the letters 'Kq', followed by the numbers '83004'. The handwriting style is cursive, and the characters are connected. ## HAYES MEDICAL, INC Consensus® Knee System CoCr/Ti Femoral Component ## 510(k) Premarket Notification ## 510(k) SUMMARY # Submitter's Name, Address, Telephone Number, and Contact Person Hayes Medical, Inc. 819 Striker Ave., Suite 10 Sacramento, CA 95834 Telephone: (916) 646-5431 Facsimile: (916) 646-5432 John B. Stassi Contact Person: Director, Compliance #### Date Prepared: August 15, 1998 # Name of Device and Name/Address of Sponsor Trade name: Consensus® Femoral Component, Porous, CoCr/Ti Hayes Medical, Inc. 819 Striker Ave., Suite 10 Sacramento, CA 95834 #### Classification Name Knee joint patellofemorotibial polymer/metal/polymer semiconstrained cemented prosthesis (21 C.F.R. § 888.3560) #### Predicate Devices - Consensus®, Knee System Femoral Component, Porous, CoCr, marketed by 1. Hayes Medical, Inc. (K932837) - The Natural-Knee® femoral component marketed by Sulzermedica, Inc. 2. - The Genesis™ Total Knee System marketed by Smith & Nephew Richards, 3. Corp. {1}------------------------------------------------ #### Intended Use The Consensus® CoCr/Ti Femoral Component is intended for use with the Consensus® Knee System and is not intended for substitution of components from other systems. This device is intended for cemented use only. The indications for use are as follows: - Primary intervention of rheumatoid arthritis, osteoarthritis, post-traumatic 1. arthritis, or degenerative arthritis; - Intervention of failed osteotomies and unicompartmental replacements; 2. - 3. Replacement of unsatisfactory cemented or press fit knee components if sufficient bone stock exists. #### Device Description The porous femoral knee component will be available in a left and right configuration and is designed to replicate the natural anatomy of the femur. The design of the femoral component incorporates a swept-back radius on the outer condyle surfaces to allow for smooth articulation throughout the range of motion 2. The outer articular surface of the femoral component will also have a deepened trochlear groove to allow for more anatomic tracking of the patellar component and improved range of motion. The material will be cast CoCrMo alloy (ASTM F75-92). The inner box geometry of the femoral component is designed to allow a minimum bone resection of 10mm distal, 9mm posterior, and 6.5mm anterior. The anterior flange of the femoral component is angled 4°outward, posterior to anterior, to reduce the potential for notching the anterior femur. The anterior flange will also 2 Mensch, et al.; Knee Morphology as a Guide to Knee Replacement, Clinical Orthopaedics and Related Research, No. 112, October 1975. {2}------------------------------------------------ incorporate a stepped chamfer which allows for positioning the trochlear groove in a more anatomic position. A smooth tapered peg will be located on each distal condyle to provide medial-lateral stability and enhanced fixation. The surfaces of the inner box geometry of the porous femoral component will incorporate a sintered porous coating of CoCr beads (ASTM F75-92), which will subsequently be coated with Titanium alloy (ASTM F67-95). The porous coating is designed to enhance cement fixation. ## Summary Basis for Finding of Substantial Equivalence The Consensus® CoCr/Ti Femoral Component has substantially the same intended use and indications for use as the predicates as well as similar performance and principles of operation. The technological differences between the Consensus® CoCr/Ti Femoral Component and the predicate devices have been thoroughly documented and tested in order to verify that no new issues of safety and effectiveness are raised by the design. {3}------------------------------------------------ Image /page/3/Picture/2 description: The image is a black and white logo for the Department of Health & Human Services - USA. The logo is circular in shape and features the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter of the circle. In the center of the circle is a stylized image of an eagle with three heads. NOV 2 5 1998 Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850 Mr. John Stassi Director, Compliance Haves Medical, Inc. 819 Striker Avenue, Suite 10 Sacramento, California 95834 K983004 Re : Consensus@ Knee System Femoral Component, Porous, CoCr/Ti Regulatory Class: II Product Code: JWH Dated: Auqust 20, 1998 Received: August 28, 1998 Dear Mr. Stassi: 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). This decision is based on this device being equivalent only to similar devices labeled and intended to be fixed within bone with acrylic "bone cement." You may, therefore, market your device subject to the general controls provisions of the Act and the following limitations: - This device may not be labeled or promoted for non-1. cemented use. - All labeling for this device, including package label 2. and labeling included within the package, must prominently state that the device is intended for cemented use only. - Any non-cemented fixation of this device is considered 3. investigational and may only be investigated as a siqnificant risk device in accordance with the investigational device exemption (IDE) regulation under 21 CFR, Part 812. All users of the device for noncemented fixation must receive approval from their respective institutional review boards (IRBs) and the Food and Drug Administration (FDA) to conduct the investigation. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practices, labeling, and prohibitions against misbranding and adulteration. {4}------------------------------------------------ Page 2 - Mr. John Stassi 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 requlations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. ਸ substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Requlation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (OS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP requlation may result in regulatory In addition, FDA may publish further announcements action. concerning your device in the Federal Reqister. 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 Requlations. This letter will allow you to beqin marketinq your device as described in your 510(k) premarket notification immediately. An FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and permits your device to proceed to the market. If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diaqnostic devices), please contact the Office of Compliance at (301) 594-4659. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. 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 (800) 638-2041 or (301) 443-6597 or at its Internet address "http://www.fda.gov/cdrh/dsmamain.html". Sincerely yours, Celia M. Witten, Ph.D., M.D. Director Division of General and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {5}------------------------------------------------ # 510(k) Number (if known): Device Name: Consensus® Femoral Component, Porous, CoCr/Ti Indications For Use: The Consensus® CoCr/Ti Femoral Component is intended for use with the Consensus® Knee System and is not intended for substitution of components from other systems. This device is intended for cemented use only. The indications for use are as follows: - Primary intervention of rheumatoid arthritis, osteoarthritis, post-traumatic 1. arthritis, or degenerative arthritis; - Intervention of failed osteotomies and unicompartmental replacements; 2. - Replacement of unsatisfactory cemented or press fit knee components if 3. sufficient bone stock exist. (PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE) Prescription Use (Per 21 CFR 801.109) (Division Sign-Off) Division of General Restorative Devices 510(k) Number K983004 --- **Source:** [https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/JWH/K983004](https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/JWH/K983004) **Published by [Innolitics](https://innolitics.com)** — a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices. 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