JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System
K222653 · Smith+Nephew, Inc. · NJD · Oct 28, 2022 · Orthopedic
Device Facts
Record ID
K222653
Device Name
JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System
Applicant
Smith+Nephew, Inc.
Product Code
NJD · Orthopedic
Decision Date
Oct 28, 2022
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3535
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Indications for JOURNEY II Unicompartmental Knee System: Unicompartmental knee implants are indicated for restoring either compartment of a knee that has been affected by the following: - Non-inflammatory degenerative joint disease including osteoarthritis, traumatic arthritis, or avascular necrosis; - Correction of functional deformity; - Revision of previous arthroplasty procedures; - Treatment of fractures that are unmanageable using other techniques. Unicompartmental knee implants are single-use only and intended for implantation only with bone cement. Indications for ENGAGE™ Partial Knee System: The ENGAGE™ Partial Knee System is intended for medial unicompartmental knee arthroplasty to treat one or more of the following conditions: - Moderately disabling joint disease of the knee resulting from painful osteo- or post-traumatic arthritis. - Revision of previous unsuccessful surgical procedures including prior unicompartmental knee arthroplasty - As an alternative to tibial osteotomy in patients with Unicompartmental osteoarthritis. The femoral component and tibial tray are intended for cemented fixation. The porous surfaces of both the femoral and tibial tray components provide biological fixation when used in a cementless application. When the tibial tray is implanted without the use of bone cement, the tibial anchor should be used. When the tibial tray is implanted with bone cement, the tibial anchor should not be used.
Device Story
Hybrid unicompartmental knee system combining JOURNEY II UK and ENGAGE components; used for knee arthroplasty. JOURNEY II components (Zr-2.5Nb femoral, XLPE insert, Ti-6Al-4V baseplate) are cemented; ENGAGE components (CoCr femoral, UHMWPE insert, Ti-6Al-4V porous-coated tray, Ti-6Al-4V anchor) allow cementless or cemented fixation. System provides biological fixation via porous surfaces on ENGAGE components. Implants available in multiple sizes to fit patient anatomy. Used by orthopedic surgeons in clinical settings to restore knee function, correct deformity, or treat arthritis/fractures. Output is a physical joint replacement; clinical decision-making based on patient need for unicompartmental arthroplasty. Benefits include pain relief and improved joint mobility.
Clinical Evidence
Bench testing only. No clinical data required to support safety and effectiveness. Mechanical testing (Contact Area Analysis) conducted to support the use of components in combination.
Indicated for patients with non-inflammatory degenerative joint disease (osteoarthritis, traumatic arthritis, avascular necrosis), functional deformity, fractures, or requiring revision of previous arthroplasty. Specifically for medial unicompartmental knee arthroplasty in patients with moderately disabling painful osteo- or post-traumatic arthritis or as an alternative to tibial osteotomy.
Regulatory Classification
Identification
A knee joint femorotibial (uni-compartmental) metal/polymer porous-coated uncemented prosthesis is a device intended to be implanted to replace part of a knee joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surface. It has no linkage across-the-joint. This generic type of device is designed to achieve biological fixation to bone without the use of bone cement. This identification includes fixed-bearing knee prostheses where the ultra-high molecular weight polyethylene tibial bearing is rigidly secured to the metal tibial baseplate.
Special Controls
*Classification.* Class II (special controls). The special control is FDA's guidance: “Class II Special Controls Guidance Document: Knee Joint Patellofemorotibial and Femorotibial Metal/Polymer Porous-Coated Uncemented Prostheses; Guidance for Industry and FDA.” See § 888.1 for the availability of this guidance.
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October 28, 2022
Smith+Nephew, Inc Lilian Hren Sr. Regulatory Affairs Specialist 1450 Brooks Rd Memphis, Tennessee 38116
Re: K222653
Trade/Device Name: JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System Regulation Number: 21 CFR 888.3535 Regulation Name: Knee Joint Femorotibial (Uni-Compartmental) Metal/Polymer Porous-Coated Uncemented Prosthesis Regulatory Class: Class II Product Code: NJD. HSX Dated: August 31, 2022 Received: September 1, 2022
Dear Lilian Hren:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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
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Sincerely,
Ting Song, Ph.D. Assistant Director DHT6A: Division of Joint Arthroplasty Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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### Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: 06/30/2023 See PRA Statement below.
Submission Number (if known)
K222653
Device Name
JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System
Indications for Use (Describe)
Indications for JOURNEY II Unicompartmental Knee System:
Unicompartmental knee implants are indicated for restoring either compartment of a knee that has been affected by the following:
- Non-inflammatory degenerative ioint disease including osteoarthritis, traumatic arthritis, or avascular necrosis;
- Correction of functional deformity:
- Revision of previous arthroplasty procedures:
- Treatment of fractures that are unmanageable using other techniques.
Unicompartmental knee implants are single-use only and intended for implantation only with bone cement.
Indications for ENGAGE™ Partial Knee System:
The ENGAGE™ Partial Knee System is intended for medial unicompartmental knee arthroplasty to treat one or more of the following conditions:
- Moderately disabling joint disease of the knee resulting from painful osteo- or post-traumatic arthritis.
- Revision of previous unsuccessful surgical procedures including prior unicompartmental knee arthroplasty
- As an alternative to tibial osteotomy in patients with Unicompartmental osteoarthritis.
The femoral component and tibial tray are intended for cemented fixation. The porous surfaces of both the femoral and tibial tray components provide biological fixation when used in a cementless application. When the tibial tray is implanted without the use of bone cement, the tibial anchor should be used. When the tibial tray is implanted with bone cement, the tibial anchor should not be used.
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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# Smith Nephew
## Section 05 – 510(k) Summary
| Submitted by: | Smith+Nephew, Inc |
|----------------------|---------------------------------------------------------------------------------------------------------------|
| | Orthopaedic Division |
| | 1450 Brooks Rd |
| | Memphis, Tennessee 38116 |
| Data of Summary: | October 28, 2022 |
| Contact Person: | Lilian Hren |
| | Sr. Regulatory Affairs Specialist |
| | M: 901.558.8200 |
| | lilian.hren@smith-nephew.com |
| Name of Device: | JOURNEY II UKTM and ENGAGETM Cementless<br>Partial Knee System |
| Common Name: | Knee joint femorotibial (uni-compartmental)<br>metal/polymer porous-coated uncemented prosthesis |
| Classification Name: | Prosthesis, Knee, Femorotibial,<br>Unicompartmental/Unicondylar, Uncemented, Porous-<br>Coated, Metal/Polymer |
| Regulation Number: | 888.3535 |
| Product Code: | NJD, HSX |
| Device Class: | Class II |
| Panel code: | Orthopaedics/87 |
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Predicate Device:
Primary Predicate: Engage™ Partial Knee System -K190439
Secondary Predicate:
Journey II Unicompartmental Knee System (Journey II UK) -K190085
Journey II Unicompartmental Knee System (Journey II UK) — K191211
#### Device Description
The purpose of this Traditional 510(k) submission is to seek FDA clearance of the existing devices ENGAGE™ Partial Knee System and JOURNEY II Unicompartmental Knee System components to be used in various combinations to create a hybrid unicompartmental knee system.
No new or modified knee implant components or new device-specific instruments are being introduced as a result of this filing where, ENGAGE™ Partial Knee System used with JOURNEY II Unicompartmental Knee System, are both FDA 510(k) cleared as follows: K190439 (S.E. 11/21/2019) - ENGAGE™ Partial Knee System; K191211 (S.E. 07/25/2019) and K190085 (S.E. 02/11/2019) - JOURNEY II Unicompartmental Knee System.
Together with the existing Smith+Nephew knee implants, these devices will be marketed under the trade name JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System. Only the use of the respective unicompartmental knee femoral/tibial devices in a hybrid device combination is changing. As a result of the acquisition of ENGAGE Surgical, ENGAGE product line in the US. Smith+Nephew now has responsibility for the ENGAGE™ Partial Knee System and has been listed as the specification developer and the complaint file establishment. The JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System is an implant system intended for unicompartmental knee arthroplasty. The subject device is a unicondylar femoral and tibial implant set in a hybrid system that incorporates JOURNEY II Unicompartmental Knee System with ENGAGE components, where the JOURNEY II Unicompartmental Knee System components are cemented and the ENGAGE components are cementless. To better fit the patient, the system consists of various sizes for the femoral and tibial components.
JOURNEY II Unicompartmental Knee System (JOURNEY II UK) components:
The subject JOURNEY II UK Femoral implant is available in ten sizes each in left medial/right lateral and right medial/left lateral side (hand) configuration. This component
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is manufactured from Zr-2.5Nb alloy materials in accordance with the following ASTM standard F2384 Standard Specification for Wrought Zirconium-2.5Niobium Alloy for Surgical Implant Applications (UNS R60901). This material is identical to material that has been in previous Smith & Nephew Knee System submissions including the predicate K191211 (S.E. 07/25/2019) and K190085 (S.E. 02/11/2019) - JOURNEY Unicompartmental Knee System.
The subject JOURNEY II UK Articular Insert is available in medial and lateral configurations for use with the corresponding baseplate and is symmetric for use in either right or left hand. This component is manufactured from XLPE materials in accordance with the ASTM standard F648 Standard Specification for Ultra-High-Molecular-Weight Polyethylene Powder and Fabricated Form for Surgical Implants (FDA Recognition Number 8-569). This material is identical to material that has been in previous Smith & Nephew Knee System submissions including the predicate K191211 (S.E. 07/25/2019) and K190085 (S.E. 02/11/2019) - JOURNEY II Unicompartmental Knee System.
The subject JOURNEY II UK Baseplate is available in ten sizes of implant with a medial primary / lateral secondary use offered in both left and right handedness (listed henceforth as "medial primary"), and eight sizes of implant with a lateral primary / medial secondary use offered in both left and right handedness (listed henceforth as "lateral primary"). Each is expected to be used in its primarily listed compartment most often but is designed for use in either medial or lateral compartments. The component is manufactured from Ti-6Al-4V materials in accordance with the ASTM standard F1472 Standard Specification for Wrought Titanium-6Aluminum-4Vanadium Alloy for Surgical Implant Applications (UNS R56400) (FDA Recognition Number 8-555). This material is identical to material that has been in previous Smith & Nephew Knee System submissions including the predicate K191211 (S.E. 07/25/2019) and K190085 (S.E. 02/11/2019) - JOURNEY II Unicompartmental Knee System.
ENGAGE™ Partial Knee System components:
The subject ENGAGE Porous Coated Femoral is available in eight sizes. This component is manufactured from CoCr Alloy materials in accordance with the ASTM standard F75 Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Allov for Surgical Implants (UNS R30075) (FDA Recognition Number 8-498), and is coated with a rough asymmetrical sintered bead coating composed of Cobalt Chromium Alloy ASTM standard F75 Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS R30075) (FDA Recognition Number 8-498). This material is identical to material that has been in previous Smith & Nephew Knee System submissions including the predicate K190439 (S.E. 11/21/2019) -ENGAGE™ Partial Knee System.
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The subject ENGAGE Tibial Insert is available in four thicknesses. This component is manufactured from UHMWPE materials in accordance with the ASTM standard F648 Standard Specification for Ultra-High-Molecular-Weight Polyethylene Powder and Fabricated Form for Surgical Implants (FDA Recognition Number 8-569). This material is identical to material that has been in previous Smith & Nephew Knee System submissions including the predicate K190439 (S.E. 11/21/2019) - ENGAGE™ Partial Knee System.
The subject ENGAGE Coated Tibial Tray is available in six sizes and includes pegs and an engineered porous surface that is intended for biological fixation when used without bone cement and it possesses a locking mechanism to retain the UHMWPE tibial insert. The tibial-femoral articulation is non-constrained. This component is manufactured from Ti-6Al-4V materials in accordance with the ASTM standard F3001 Standard Specification for Additive Manufacturing Titanium-6 Aluminum-4 Vanadium ELI (Extra Low Interstitial) with Powder Bed Fusion and includes an engineered porous surface also composed of Titanium Alloy (ASTM F3001) (FDA Recognition Number 8-439) on the bone-contacting surface. This material is identical to material that has been in previous Smith & Nephew Knee System submissions including the predicate K190439 (S.E. 11/21/2019) -ENGAGE™ Partial Knee System.
The subject ENGAGE Tibial Anchor Stem is available in three lengths and provides supplemental fixation of the tibial tray when implanted without bone cement. This component is manufactured from Ti-6Al-4V ELI materials in accordance with the ASTM standard F136-13 Standard Specification for Wrought Titanium-6Aluminum-4Vanadium ELI (Extra Low Interstitial) Allov for Surgical Implant Applications (UNS R56401) (FDA Recognition Number 8-377). This material is identical to material that has been in previous Smith & Nephew Knee System submissions including the predicate K190439 (S.E. 11/21/2019) - ENGAGE™ Partial Knee System.
The instrumentation required will consist of femoral and tibial instruments which are used to make appropriate resections to prepare the femur/tibia for the implants.
#### Indications for Use:
Indications for JOURNEY II Unicompartmental Knee System:
Unicompartmental knee implants are indicated for restoring either compartment of a knee that has been affected by the following:
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- Non-inflammatory degenerative joint disease including osteoarthritis, traumatic arthritis, or avascular necrosis:
- Correction of functional deformity;
- Revision of previous arthroplasty procedures;
- Treatment of fractures that are unmanageable using other techniques.
Unicompartmental knee implants are single-use only and intended for implantation only with bone cement.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Indications for ENGAGE™ Partial Knee System:
The ENGAGE™ Partial Knee System is intended for medial unicompartmental knee arthroplasty to treat one or more of the following conditions:
- Moderately disabling joint disease of the knee resulting from painful osteo- or posttraumatic arthritis.
- Revision of previous unsuccessful surgical procedures including prior unicompartmental knee arthroplastv
- As an alternative to tibial osteotomy in patients with Unicompartmental osteoarthritis.
The femoral component and tibial tray are intended for cementless or cemented fixation. The porous surfaces of both the femoral and tibial tray components provide biological fixation when used in a cementless application. When the tibial tray is implanted without the use of bone cement, the tibial anchor should be used. When the tibial tray is implanted with bone cement, the tibial anchor should not be used.
#### Indications for Use Comparison
The purpose of this Traditional 510(k) submission is to seek FDA clearance of the existing devices ENGAGE™ Partial Knee System and JOURNEY II Unicompartmental Knee System components to be used in various combinations to create a hybrid unicompartmental knee system.
Indications for use are the same, no new or modified knee implant components or new device-specific instruments are being introduced as a result of this filing where, ENGAGE™ Partial Knee System used with JOURNEY II Unicompartmental Knee System, are both FDA 510(k) cleared as follows: K190439 (S.E. 11/21/2019) -ENGAGE™ Partial Knee System; K191211 (S.E. 07/25/2019) and K190085 (S.E. 02/11/2019) - JOURNEY II Unicompartmental Knee System.
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Together with the existing Smith+Nephew knee implants, these devices will be marketed under the trade name JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System. Only the use of the respective unicompartmental knee femoral/tibial devices in a hybrid device combination is changing. As a result of the acquisition of ENGAGE Surgical, ENGAGE product line in the US. Smith+Nephew now has responsibility for the ENGAGE™ Partial Knee System and has been listed as the specification developer and the complaint file establishment. The JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System is an implant system intended for unicompartmental knee arthroplasty. The subject device is a unicondylar femoral and tibial implant set in a hybrid system that incorporates JOURNEY II Unicompartmental Knee System with ENGAGE components, where the JOURNEY II Unicompartmental Knee System components are cemented and the ENGAGE components are cementless. To better fit the patient, the system consists of various sizes for the femoral and tibial components.
#### Technology Characteristics
The devices that comprise the JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System are existing devices previously cleared by the FDA. As result, much of the testing makes references to existing information previously provided to the agency. Additional mechanical testing (Contact Area Analysis) was conducted on the subject device to support the use of the components in combination. Based on the testing, there are no new issues related to the safety and effectiveness of the subject device. Clinical data was not needed to support the safety and effectiveness of the subject device.
#### Non-Clinical and/or Clinical Tests Summary & Conclusion
#### Substantial Equivalence Information
The JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System is identical in function, design features, intended use, indications for use, operational principles, because the components are the identical product devices cleared in previous premarket notifications listed in the attachment "Comprehensive Device Description and Principles of Operation Documentation" (See Attachment "02-DEVICE PRESCRIPTION -SE Predicates - CONFIDENTIAL" for Substantial Equivalent Predicates to the JOURNEY II UK™ and ENGAGE™ Cementless Partial Knee System).
#### Conclusion
No new or modified unicompartmental knee implant components or device specific instruments are being introduced as a result of this filling. The subject device is comprised
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K222653 Page 7 of 7
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The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.