JOURNEY II Unicompartmental Knee System (JOURNEY II UK)
K242711 · Smith & Nephew, Inc. · HSX · Oct 30, 2024 · Orthopedic
Device Facts
Record ID
K242711
Device Name
JOURNEY II Unicompartmental Knee System (JOURNEY II UK)
Applicant
Smith & Nephew, Inc.
Product Code
HSX · Orthopedic
Decision Date
Oct 30, 2024
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3520
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Unicompartmental knee implants are indicated for restoring either compartment of a knee that has been affected by the following: · Noninflammatory degenerative joint disease including osteoarthritis, traumatic arthritis, or avascular necrosis: and · Partial revisions to replace the tibial insert of the previously implanted JOURNEY II UK knee in the case the femoral and tibial components are well-fixed. Unicompartmental knee implants are single use only and are intended for implantation only with bone cement.
Device Story
JOURNEY II Unicompartmental Knee System (JOURNEY II UK) is a single-use orthopedic implant for unicompartmental knee arthroplasty. System comprises OXINUM femoral components, titanium tibial baseplates, and cross-linked polyethylene (XLPE) tibial inserts. Implants are surgically placed by orthopedic surgeons in a clinical/hospital setting to replace a single damaged condylar compartment of the knee. Device is intended for use with bone cement. System restores joint function by replacing damaged articular surfaces, allowing for smooth knee flexion and extension. This submission covers labeling updates to align with EU MDR requirements; no changes to design, materials, or manufacturing.
Clinical Evidence
No clinical data provided. Bench testing not required as there are no modifications to device design, materials, or manufacturing methods.
Technological Characteristics
System consists of OXINUM femoral components, titanium tibial baseplates, and cross-linked polyethylene (XLPE) tibial inserts. Implants are designed for cemented fixation. No changes to materials, sterilization, or packaging from previously cleared predicates.
Indications for Use
Indicated for skeletally mature patients requiring unicompartmental knee arthroplasty for noninflammatory degenerative joint disease (osteoarthritis, traumatic arthritis, avascular necrosis) or for partial revision to replace the tibial insert when femoral and tibial components are well-fixed.
Regulatory Classification
Identification
A knee joint femorotibial metal/polymer non-constrained cemented prosthesis is a device intended to be implanted to replace part of a knee joint. The device limits minimally (less than normal anatomic constraints) translation in one or more planes. It has no linkage across-the-joint. This generic type of device includes prostheses that have a femoral condylar resurfacing component or components made of alloys, such as cobalt-chromium-molybdenum, and a tibial component or components made of ultra-high molecular weight polyethylene and are intended for use with bone cement (§ 888.3027).
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo is in blue and includes the letters "FDA" followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in a smaller font.
October 30, 2024
Smith & Nephew. Inc. Anne Remington Regulatory Affairs Specialist II 1450 Brooks Rd Memphis, Tennessee 38116
Re: K242711
Trade/Device Name: JOURNEY II Unicompartmental Knee System (JOURNEY II UK) Regulation Number: 21 CFR 888.3520 Regulation Name: Knee Joint Femorotibial Metal/Polymer Non-Constrained Cemented Prosthesis Regulatory Class: Class II Product Code: HSX, KRR, NPJ Dated: September 9, 2024 Received: September 9, 2024
Dear Anne Remington:
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 (the 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 available 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.
{1}------------------------------------------------
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30. Design controls; 21 CFR 820.90. Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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); medical device reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-device-advicecomprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatory
{2}------------------------------------------------
assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Image /page/2/Picture/3 description: The image shows the name "Lixin Liu-S" in a large, sans-serif font. The text is black and stands out against a white background. The name appears to be a title or heading, possibly indicating a person's name or a project title.
Lixin Liu, 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
{3}------------------------------------------------
### Indications for Use
Submission Number (if known)
K242711
Device Name
JOURNEY II Unicompartmental Knee System (JOURNEY II UK)
Indications for Use (Describe)
Unicompartmental knee implants are indicated for restoring either compartment of a knee that has been affected by the following:
· Noninflammatory degenerative joint disease including osteoarthritis, traumatic arthritis, or avascular necrosis: and
· Partial revisions to replace the tibial insert of the previously implanted JOURNEY II UK knee in the case the femoral and tibial components are well-fixed.
Unicompartmental knee implants are single use only and are intended for implantation only with bone cement.
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.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{4}------------------------------------------------
# 510(k) Summarv
Prepared on: 2024-10-29
## Contact Details
21 CFR 807.92(a)(1)
| Applicant Name | Smith & Nephew, Inc. |
|-----------------------------|-----------------------------------------------|
| Applicant Address | 1450 Brooks Rd Memphis TN 38116 United States |
| Applicant Contact Telephone | +1.704.397.9060 |
| Applicant Contact | Mrs. Anne Remington |
| Applicant Contact Email | Anne.Remington@smith-nephew.com |
Device Name THE IMAGE IS NOT READABLE. RETURNING AN EMPTY JSON ARRAY.```jsonArray:[]The purpose of this Traditional 510(k) is to notify the FDA of Smith & Nephew's intent to request clearance for labeling updates, which include indication updates in the IFU/Package Insert, to Smith & Nephew's JOURNEY II Unicompartmental Knee System. There is no significant change in design, technological characteristics, function, sterilization or packaging of the devices as a result of this submission.
The JOURNEY II Unicompartmental Knee System includes femoral components, tibial inserts that restore either compartment of the knee (K190085, K230653). JOURNEY II UK provides joint replacement on a single condylar compartment, meaning that only one condyle will be replaced instead of the entire femoral component replaces the damaged condylar component of the femur. The tibial baseplate replaced the damaged part of the tibial insert is the articulating surface which allows the knee to bend and flex smoothly and is placed above the tibial baseplate.
The subject Smith & Nephew JOURNEY II Unicompartmental Knee System devices are identical in function, design features, materials, sterlization, packaging manufacturing methods and operational principles to what was previously 510(k) cleared (K190085, K230653). These labeling updates do not affect the safety and effectiveness of the subject devices when used as labeled.
The JOURNEY II Unicompartmental Knee System is intental knee arthroplasty in skeletally mature patients. The JOURNEY II UK implants are intended for implantation with bone cement.
The Smith & Nephew JOURNEY II Unicompartmental Knee System consists of OXINUM femoral components, titanium tibial baseplates,
{5}------------------------------------------------
and cross-linked polyethylene (XLPE) tibial inserts. These material that has been previously cleared in K230653 and K190085.
## Intended Use/Indications for Use
Unicompartmental knee implants are indicated for restoring either compartment of a knee that has been affected by the following:
· Noninflammatory degenerative joint disease including osteoarthritis, traumatic arthritis, or avascular necrosis; and · Partial revisions to replace the tibial insert of the previously implanted JOURNEY II UK knee in the femoral and tibial components are well-fixed.
Unicompartmental knee implants are single use only and are intended for implantation only with bone cement.
## Indications for Use Comparison
### The purpose of this Traditional 510(k) is to notify the FDA of our intent to request clearance for changes to Smith & Nephew's JOURNEY II Unicompartmental Knee System labeling, including updated indications.
Indications were updated from the Instructions for Use (K190085, K230653) to meet EU MDR requirements. Indications that could be implied within another cleared indication were removed to consolidate indication verbiage was modified to specify only isolated polyethylene insert exchanges (poly swap), in the case the femoral and tibial components are wellfixed, based on clinical evaluation requirements under EU MDR. The updates to the indications do not change the general purpose or disease or condition that the subject devices are intended to be used for; therefore, the indications do not constitute a new intended use.
The Smith & Nephew JOURNEY II Unicompartmental Knee System is identical in function, design features, materials, sterilization, packaging, manufacturing methods and operational principles to the commercially available predicate device Smith & Nephew JOURNEY II Unicompartmental Knee System (K190085, K230653).
## Technological Comparison
The overall technological characteristic including device devices are identical to the predicates cleared under the premarket notifications Smith & Nephew JOURNEY II Unicompartmental Knee System (K190085, K230653), As a result, all relevant testing makes references to existing information previously provided to the agency.
#### Non-Clinical and/or Clinical Tests Summary & Conclusions 21 CFR 807 92(b)
The purpose of this traditional 510(k) is to request clearance from FDA for labeling changes to the subject Smith & Nephew JOURNEY II Unicompartmental Knee System implants.
The subject Smith & Nephew JOURNEY II Unicompartmental Knee System devices are identical in function, design features, materials, packaging, sterilization, manufacturing methods and operational principles to what was previously 510(k) cleared (K190085, K230653), These labeling updates do not affect the safety and effectiveness of the subject devices when used as labeled.
Therefore, since there are no changes to the design features, materials, or manufacturing methods of the subject I I Unicompartmental Knee System devices, no performance testing (bench, animal, clinical) was required.
Not Applicable.
No modifications are being introduced to the subject devices as a result of this filing. The subject devices are substantially equivalent to the previously 510(k) cleared predicate devices (K190085, K230653).
## 21 CFR 807.92(a)(5)
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
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.