ITOTAL CRUCIATE RETAINING, IUNI UNICONDYLAR KNEE REPLACEMENT SYSTEMS, IDUO BICOMPARTMENTAL KNEE REPAIR SYSTEM

Q: Who is the manufacturer of ITOTAL CRUCIATE RETAINING, IUNI UNICONDYLAR KNEE REPLACEMENT SYSTEMS, IDUO BICOMPARTMENTAL KNEE REPAIR SYSTEM?

Conformis, Inc. filed the 510(k) submission for ITOTAL CRUCIATE RETAINING, IUNI UNICONDYLAR KNEE REPLACEMENT SYSTEMS, IDUO BICOMPARTMENTAL KNEE REPAIR SYSTEM (K133256).

Q: What is the FDA product code for ITOTAL CRUCIATE RETAINING, IUNI UNICONDYLAR KNEE REPLACEMENT SYSTEMS, IDUO BICOMPARTMENTAL KNEE REPAIR SYSTEM?

JWH. It is classified under 21 CFR 888.3560 as a Class 2 device in the Orthopedic panel.

Q: What is the regulatory pathway for ITOTAL CRUCIATE RETAINING, IUNI UNICONDYLAR KNEE REPLACEMENT SYSTEMS, IDUO BICOMPARTMENTAL KNEE REPAIR SYSTEM?

510(k) clearance (submission type: Traditional).

Q: Who can help prepare an FDA 510(k) submission like ITOTAL CRUCIATE RETAINING, IUNI UNICONDYLAR KNEE REPLACEMENT SYSTEMS, IDUO BICOMPARTMENTAL KNEE REPAIR SYSTEM?

Innolitics — a medical-device software consultancy — provides regulatory and engineering support for FDA 510(k) submissions. See https://innolitics.com/services/510ks/ or contact https://innolitics.com/contact.

K133256 · Conformis, Inc. · JWH · Jan 9, 2014 · Orthopedic

Device Facts

Record ID	K133256
Device Name	ITOTAL CRUCIATE RETAINING, IUNI UNICONDYLAR KNEE REPLACEMENT SYSTEMS, IDUO BICOMPARTMENTAL KNEE REPAIR SYSTEM
Applicant	Conformis, Inc.
Product Code	JWH · Orthopedic
Decision Date	Jan 9, 2014
Decision	SESE
Submission Type	Traditional
Regulation	21 CFR 888.3560
Device Class	Class 2
Attributes	Therapeutic

Intended Use

The iTotal® CR Knee Replacement System is intended for use as a total knee replacement in patients with knee joint pain and disability whose conditions cannot be solely addressed by the use of a prosthetic device that treats only one or two of the three knee compartments, such as a unicondylar, patellofemoral or bicompartmental prosthesis. The indications for use include: Painful joint disease due to osteoarthritis, traumatic arthritis, rheumatoid arthritis or osteonecrosis of the knee. Post traumatic loss of joint function. Moderate varus, valgus or flexion deformity in which the ligamentous structures can be returned to adequate function and stability. Failed osteotomies, hemiarthroplasties, and unicondylar, patellofemoral or bicompartmental implants. Revision procedures provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. This implant is intended for cemented use only. The ConforMIS Unicondylar Knee Replacement System (iUni) is intended for use in one compartment of the osteoarthritic knee to replace the damaged area of the articular surface in patients with evidence of adequate healthy bone sufficient for support of the implanted components. Candidates for unicondylar knee replacement include those with: Joint impairment due to osteoarthritis or traumatic arthritis of the knee; Previous femoral condyle or tibial plateau fracture, creating loss of function; Valgus or varus deformity of the knee; Revision procedures provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. This implant is intended for cemented use only. The ConforMIS iDuo Bicompartmental Knee Repair System is intended for use in patients with severe knee joint pain and disability whose conditions cannot be solely addressed by the use of a prosthetic device that treats only a single knee compartment, such as unicondylar or patellofemoral prosthesis. The indications for use include restoring joint function and relief of pain due to: Painful joint disease due to osteoarthritis; Traumatic arthritis of the knee; Post traumatic loss of joint function; Failed osteotomies, hemiarthroplasties and unicondylar implants. The iDuo Bicompartmental Knee Repair System may be utilized when the medial or lateral condyle and the patellofemoral areas have been affected by one or more of the above noted conditions. The iDuo implant is intended for cemented use only.

Device Story

Patient-specific knee replacement systems (iTotal CR, iUni, iDuo) designed using patient CT or MR scans to match individual anatomy. Implants consist of femoral, tibial, and/or patellar components. Femoral components made of CoCrMo alloy; tibial trays of CoCrMo; inserts and patellar components of UHMWPE. Used by orthopedic surgeons in clinical settings for cemented knee arthroplasty. Patient-specific nylon jigs assist in bone cuts and implant positioning. Device provides customized fit to restore joint function and relieve pain. This submission specifically validates the addition of Ethylene Oxide (EO) sterilization to the existing manufacturing process.

Clinical Evidence

Bench testing only. No clinical data required to demonstrate substantial equivalence. Testing included sterilization validation to SAL 1x10^-6, EO residual testing, and product/packaging compatibility with ethylene oxide.

Technological Characteristics

Patient-specific semi-constrained cemented knee prostheses. Materials: CoCrMo alloy (femoral/tibial tray), UHMWPE (inserts/patellar). Patient-specific nylon cutting jigs. Sterilization: VHP Gas Plasma or Ethylene Oxide (SAL 1x10^-6).

Indications for Use

Indicated for patients with knee joint pain/disability due to osteoarthritis, traumatic arthritis, rheumatoid arthritis, osteonecrosis, post-traumatic loss of function, or failed prior implants. Suitable for patients requiring total, unicondylar, or bicompartmental knee replacement where anatomic landmarks are identifiable on imaging. Contraindicated if anatomic landmarks are not identifiable.

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

ConforMIS iTotal CR Knee Replacement System (K131467, K131019)
ConforMIS iUni Unicondylar Knee Replacement System (K121974, K111916)
ConforMIS iDuo Bicompartmental Knee Repair System (K093513)

Related Devices

K152704 — iTotal Posterior Stabilized Knee Replacement System, iTotal Cruciate Retaining Knee Replacement System · Conformis, Inc. · Oct 21, 2015
K210252 — iTotal Identity Cruciate Retaining (CR) Knee Replacement System, iTotal Identity Posterior Stabilizing (PS) Knee Replacement System · Conformis, Inc. · Feb 17, 2021
K140833 — ITOTAL POSTERIOR STABILIZED (PS) KNEE REPLACEMENT SYSTEM · Conformis, Inc. · Jun 30, 2014
K190562 — iTotal Identity Cruciate Retaining Knee Replacement System · Conformis, Inc. · Aug 8, 2019
K131467 — ITOTAL CRUCIATE RETAINING (CR) KNEE REPLACEMENT SYSTEM · Conformis, Inc. · Jul 18, 2013

Submission Summary (Full Text)

{0}------------------------------------------------ JAN - 9 2014 | 6.0 510(K) SUMMARY | | |------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------| | Submitter's Name | ConforMIS Inc. 28 Crosby Drive Bedford, MA 01730 | | Establishment Registration Number: | 3009844603 and 3004153240 | | Date of Summary: | October 22, 2013 | | Contact Person: | Amita S. Shah, Sr. Vice President, Regulatory and Quality Affairs | | Telephone Number: | (781) 345-9164 | | Fax Number: | (781) 345-0147 | | Name of the Device(s): | ConforMIS iTotal CR Knee Replacement System ConforMIS iUni Unicondylar Knee Replacement System ConforMIS iDuo Bicompartmental Knee Repair System | | Common Name(s): | Total Knee Replacement System | | | Unicondylar Knee Replacement System | | | Bicompartmental Knee Replacement System | | Regulatory Status and Regulation Number: | Class II 21 CFR 888.3560, 21 CFR 888.3520 | | Device Classification: | Class II | | | Product Codes: | | | JWH, Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis | . 11 `, {1}------------------------------------------------ OOG, Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis. Intended to be used to assist in the implantation of a specific knee arthroplasty device or a set of specific knee arthroplasty devices. Indicated to include guiding alignment, making or establishing cuts, selecting, sizing, attaching, positioning or orienting implant components. NPJ, Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis. HSX, Knee joint femorotibial metal/polymer nonconstrained cemented prosthesis #### Indications for Use: ### iTotal The iTotal® CR Knee Replacement System is intended for use as a total knee replacement in patients with knee joint pain and disability whose conditions cannot be solely addressed by the use of a prosthetic device that treats only one or two of the three knee compartments, such as a unicondylar, patellofemoral or bicompartmental prosthesis. The indications for use include: - . Painful joint disease due to osteoarthritis, traumatic arthritis, rheumatoid arthritis or osteonecrosis of the knee. - . Post traumatic loss of joint function. - . Moderate varus, valgus or flexion deformity in which the ligamentous structures can be returned to adequate function and stability. - . Failed osteotomies, hemiarthroplasties, and unicondylar, patellofemoral or bicompartmental implants. - Revision procedures provided that . anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. {2}------------------------------------------------ This implant is intended for cemented use only. ### iUni The ConforMIS Unicondylar Knee Replacement System (iUni) is intended for use in one compartment of the osteoarthritic knee to replace the damaged area of the articular surface in patients with evidence of adequate healthy bone sufficient for support of the implanted components. Candidates for unicondylar knee replacement include those with: - . Joint impairment due to osteoarthritis or traumatic arthritis of the knee - Previous femoral condyle or tibial plateau fracture, . creating loss of function - . Valgus or varus deformity of the knee - Revision procedures provided that anatomic . landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. This implant is intended for cemented use only. ### iDuo The ConforMIS iDuo Bicompartmental Knee Repair System is intended for use in patients with severe knee joint pain and disability whose conditions cannot be solely addressed by the use of a prosthetic device that treats only a single knee compartment, such as unicondylar or patellofemoral prosthesis. The indications for use include restoring joint function and relief of pain due to : - . Painful joint disease due to osteoarthritis - Traumatic arthritis of the knee . - Post traumatic loss of joint function . - . Failed osteotomies, hemiarthroplasties and unicondylar implants The iDuo Bicompartmental Knee Repair System may be utilized when the medial or lateral condyle and the patellofemoral areas have been affected by one or more of the above noted conditions. The iDuo implant is intended for cemented use only. {3}------------------------------------------------ | Identification of the Legally Marketed Device(s) (Predicate Device): | | |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ConforMIS iTotal CR Knee Replacement System Device Class: II Product Code: JWH, OOG Regulation Number: 21 CFR 888.3560 510(k) Number: K131467 and K131019 | ConforMIS knee replacement systems are patient- specific semi-constrained knee implants which consist of a femoral, tibial, and/or patellar components. The products are intended for treatment of severe pain and/or disability of the knee damaged by osteoarthritis or trauma. Using patient imaging (either CT or MR scans), a patient- specific implant is designed that best meets the geometric and anatomic requirements of the specific patient. The femoral components of the devices are manufactured from cobalt chromium molybdenum (CoCrMo) alloy. The tibial component includes a metal tray manufactured from CoCrMo alloy and polyethylene inserts manufactured from UHMWPE or an all polyethylene tibial component. The patellar components are manufactured from UHMWPE. | | ConforMIS iUni Unicondylar Knee Replacement System Device Class: II Product Code: HSX, OOG Regulation Number: 21 CFR 888.3520 510(k) Number: K121974 and K111916 | | | ConforMIS iDuo Bicompartmental Knee Repair System Device Class: II Product Code: NPJ, OOG Regulation Number: 21 CFR 888.3560 510(k) Number: K093513 | | | Device Description: | | · · {4}------------------------------------------------ | Substantial | The products subject to this premarket notification are | |--------------|------------------------------------------------------------------------------------------------------------------------------------| | Equivalence: | substantially equivalent to the predicate devices. The following testing was performed to establish substantial equivalence: | - Sterilization Validation to Sterility Assurance . Level (SAL) of 1x10-6 . - . Ethylene Oxide (EO) Residual Testing - Product and packaging compatibility with ethylene . oxide sterilization {5}------------------------------------------------ ### Device Comparison | | iTotal CR Knee Replacement System (K131467 and K131019) iUni Unicondylar Knee Replacement System (K121974 and K111916) Duo Bicompartmental Knee Repair System (K093513 | Replacement System Duo Bicompartmental Kne | |------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------| | | Femoral Implant: CoCrMo Tibial Implant o All Poly Tibial component - UHMWPE o Metal Backed Tibial Components: Tibial tray: CoCrMo ಂ Tibial Inserts: UHMWPE 0 Patellar Component: UHMWPE | Same | | Design & Principle of Operation | Knee joint semi-constrained cemented prosthesis Cemented Use Fixed Bearing Design | Same | | ndications for | iTotal The iTotal CR Knee Replacement System (KRS) is intended for use as a total knee replacement in patients with knee joint pain and disability whose conditions cannot be solely addressed by the use of a prosthetic device that treats only one or two of the three knee compartments, such as a unicondylar, patellofemoral or bicompartmental prosthesis. The Indications for Use include: • Painful joint disease due to osteoarthritis, traumatic arthritis, rheumatoid arthritis or osteonecrosis of the knee. Post traumatic loss of joint function. Moderate varus, valgus or flexion deformity in which the ligamentous structures can be returned to adequate function and stability. · Failed osteotomies, hemiarthroplasties, and unicondylar, patellofemoral or bicompartmental implants. Revision procedures provided that | Same | | Attribute | Predicate Devices | Modified Device (This submission) | | | iTotal CR Knee Replacement System (K131467 and K131019) iUni Unicondylar Knee Replacement System (K121974 and K111916) iDuo Bicompartmental Knee Repair System (K093513) | iTotal CR Knee Replacement System iUni Unicondylar Knee Replacement System iDuo Bicompartmental Knee Repair System | | | anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. This implant is intended for cemented use only. iUni The ConforMIS Unicondylar Knee Replacement System (iUni) is intended for use in one compartment of the osteoarthritic knee to replace the damaged area of the articular surface in patients with evidence of adequate healthy bone sufficient for support of the implanted components. Candidates for unicondylar knee replacement include those with: Joint impairment due to osteoarthritis or traumatic arthritis of the knee Previous femoral condyle or tibial plateau fracture, creating loss of function Valgus or varus deformity of the knee Revision procedures provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. This implant is intended for cemented use only. | Same | | | iDuo The ConforMIS iDuo Bicompartmental Knee Repair System is intended for use in patients with severe knee joint pain and disability whose conditions cannot be solely addressed by the use of a prosthetic device | Same | | Attribute | Predicate Devices | Modified Device (This submission) | | | iTotal CR Knee Replacement System (K131467 and K131019) iUni Unicondylar Knee Replacement System (K121974 and K111916) iDuo Bicompartmental Knee Repair. System (K093513) that treats only a single knee compartment, such as unicondylar or patellofemoral prosthesis. The indications for use include | iTotal CR Knee Replacement System iUni Unicondylar Knee Replacement System iDuo Bicompartmental Knee Repair System | | Patient Matched implants and instruments | Yes | Same | | Instrumentation | Patient specific Nylon jigs | Same | | Packaging | Device components are double-pouched using Tyvek®/film pouches which are sealed and labeled | Same | | Sterility Method/ Assurance Level | VHP Gas Plasma with SAL of 1x10-6 | VHP Gas Plasma with SAL of 1x10-6 and Ethylene oxide with SAL of 1x10-6 | | Initial Shelf-Life | 6 months | Same | | Labeled Non- | No | Same | Traditional 510(k) ConforMIS – Addition of Ethylene Oxide Sterilization {6}------------------------------------------------ # K133256 (7/9) . · · · " Traditional 510(k) ConforMIS – Addition of Ethylene Oxide Sterilization ・ {7}------------------------------------------------ Traditional 510(k) ConforMIS – Addition of Ethylene Oxide Sterilization {8}------------------------------------------------ . . . | iUni Unicondylar Knee Replace stem (K121974 and K11191 nin ﺎ ﺍﻟﻤﺴﺘﻘﻠﺔ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟ 5 | eblacement Bicc | |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------| | | | | Description and Conclusion of Testing | Nonclinical Testing: The determination of substantial equivalence for these devices was based on a detailed device description. The following non-clinical laboratory testing was performed demonstrating that the devices are safe and can be considered substantially equivalent to the predicate devices for the intended use: Sterilization Validation testing to establish a SAL of 1x10-6 EO residual testing Product and packaging compatibility with ethylene oxide sterilization | |---------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Safety and Performance | The determination of substantial equivalence for these devices was based on a detailed device description. Non-clinical laboratory testing was performed demonstrating that the devices are safe and can be considered substantially equivalent to the predicate devices for the proposed intended use. Clinical data is not necessary to demonstrate substantial equivalence. | | Conclusion | Based on the testing conducted it is concluded that the modified devices are substantially equivalent to the predicate devices and can be sterilized to a SAL of 1x10-6 using ethylene oxide sterilization. | {9}------------------------------------------------ DEPARTMENT OF HEALTH & HUMAN SERVICES Image /page/9/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with its wings spread, enclosed within a circle. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged around the upper portion of the circle. Public Health Service Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002 January 9, 2014 ConforMIS, Incorporated Ms. Amita S. Shah Senior Vice President. Regulatory and Quality Affairs 28 Crosby Drive Bedford, Massachusetts 01730 Re: K133256 Trade/Device Name: ConforMIS® iTotal Cruciate Retaining Knee Replacement System (iTotal CR KRS), ConforMIS® iUni Unicondylar Knee Replacement System, ConforMIS® iDuo Bicompartmental Knee Repair System (iDuo KRS) Regulation Number: 21 CFR 888.3560 Regulation Name: Knee joint patellofemorotibial polymer semi-constrained cemented prosthesis Regulatory Class: Class II Product Code: JWH. HSX, NPJ, OOG Dated: October 22, 2013 Received: October 23, 2013 Dear Ms. Shah: 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, subject 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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading. If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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 {10}------------------------------------------------ ### Page 2 - Ms. Amita S. Shah comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807): labeling (21 CFR Part 801); medical device reporting (reporting of medical, device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set 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. If you desire specific advice for your device on our labeling regulation (21 CFR Part 801). please contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also,.please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance. 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) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Sincercly yours. # Ronaldillean -S for Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure. {11}------------------------------------------------ # iTotal CR Knee Replacement System 510(k) Number (if known): K133256 Device Name: ConforMIS® Total Cruciate Retaining Knee Replacement System (iTotal CR KRS) #### Indications for Use: The iTotal® CR Knee Replacement System is intended for use as a total knee replacement in patients with knee joint pain and disability whose conditions cannot be solely addressed by the use of a prosthetic device that treats only one or two of the three knee compartments, such as a unicondylar, patellofemoral or bicompartmental prosthesis. The Indications for Use include: - . Painful joint disease due to osteoarthritis, traumatic arthritis, rheumatoid arthritis or osteonecrosis of the knee. - Post traumatic loss of joint function. - Moderate varus, valgus or flexion deformity in which the ligamentous structures . can be returned to adequate function and stability. - Failed osteotomies, hemiarthroplasties, and unicondylar, patellofemoral or . bicompartmental implants. - Revision procedures provided that anatomic landmarks necessary for alignment . and positioning of the implant are identifiable on patient imaging scans. This implant is intended for cemented use only. Prescription Use X AND/OR Over-The-Counter Use_ (Part 21 CFR 801 Subpart D) (21 CFR 801 Subpart C) #### (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED) # Page 1 of 3 Concurrence of CDRH, Office of Device Evaluation (ODE) Casey Li Division Traditional 510(k) ConforMIS - Addition of Ethylene Oxide Sterilization {12}------------------------------------------------ # iUni Unicondylar Knee Replacement System #### 510(k) Number (if known): K133256 Device Name: ConforMIS® iUni Unicondylar Knee Replacement System #### Indications for Use: The ConforMIS Unicondylar Knee Replacement System (iUni) is intended for use in one compartment of the osteoarthritic knee to replace the damaged area of the articular surface in patients with evidence of adequate healthy bone sufficient for support of the implanted components. Candidates for unicondylar knee replacement include those with: - · Joint impairment due to osteoarthritis or traumatic arthritis of the knee AND/OR - Previous femoral condyle or tibial plateau fracture, creating loss of function ● - . Valgus or varus deformity of the knee - Revision procedures provided that anatomic landmarks necessary for alignment and ● positioning of the implant are identifiable on patient imaging scans. This implant is intended for cemented use only. Prescription Use _ X (Part 21 CFR 801 Subpart D) Over-The-Counter Use (21 CFR 801 Subpart C) ### (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED) Page 2 of 3 Concurrence of CDRH, Office of Device Evaluation (ODE) Casey L. Hanley, Ph.D. Division of Orthopedic Devices Traditional 510(k) ConforMIS - Addition of Ethylene Oxide Sterilization {13}------------------------------------------------ # iDuo Bicompartmental Knee Replacement System 510(k) Number (if known): K133256 Device Name: ConforMIS® iDuo Bicompartmental Knee Repair System (iDuo KRS) #### Indications for Use: The ConforMIS iDuo Bicompartmental Knee Repair System is intended for use in patients with severe knee joint pain and disability whose conditions cannot be solely addressed by use of a prosthetic device that treats only a single knee compartment, such as unicondylar or patellofemoral prosthesis. The indications for use include restoring joint function and relief of pain due to: - Painful joint disease due to osteoarthritis . - Traumatic arthritis of the knee. . - Post traumatic loss of joint function . - . Failed osteotomies, hemiarthroplasties, and unicondylar implants. The iDuo Bicompartmental Knee Repair System may be utilized when the medial or lateral condyle and the patellofemoral areas have been affected by one or more of the above noted conditions. The iDuo implant is intended for cemented use only. Prescription Use _ X (Part 21 CFR 801 Subpart D) AND/OR Over-The-Counter Use__________________________________________________________________________________________________________________________________________________________ (21 CFR 801 Subpart C) (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED) Page 3 of 3 Concurrence of CDRH, Office of Device Evaluation (ODE) Casey L. Hanley, Ph.D. Division of Orthopedic Devices Traditional 510(k) ConforMIS - Addition of Ethylene Oxide Sterllization