The Medline UNITE® Medial Malleolus Peg Plate System, when used in conjunction with the Medline UNITE® Locking and Non-Locking Screws, are indicated for fixation of fractures, and nonunions of the distal tibia and fibula such as: - Medial Malleolar Fractures - Lateral Malleolar Fractures - Syndesmosis Injuries - Bi-Malleolar Fractures - Tri-Malleolar Fractures - Vertical Shear Fractures of the Medial Malleolus - Medial Malleolar Avulsion Fractures - Lateral Malleolar Avulsion Fractures In addition, the Medline UNITE® Locking Pegs, when used in conjunction with the Medline UNITE® Mini Plates and Screws, are indicated for use in stabilization of fresh fractures, joint fusion and reconstruction of small bones of the hand, feet, wrist, ankles, fingers and toes. The system can be used in both adult and pediatric (adolescent and child) patients.
Device Story
System consists of titanium alloy (Ti-6Al-4V ELI) plates, locking/non-locking screws, and locking pegs; used for bone fixation, stabilization, and reconstruction in orthopedic procedures. Implants are surgically placed by physicians to stabilize fractures or facilitate joint fusion in distal tibia, fibula, and small bones of extremities. System includes reusable instrumentation (e.g., plate inserters, wire sleeves) for implantation. Device provides mechanical stability to bone segments during healing. Benefits include restoration of skeletal alignment and support for bone union.
Clinical Evidence
No clinical testing was performed. Substantial equivalence is supported by bench testing and engineering analysis comparing the subject device to the predicate Medline UNITE® Ankle Fracture Plating System.
Technological Characteristics
Materials: Titanium alloy (ASTM F136 or ISO 5832-3). Components: Plates, locking/non-locking screws (2.7mm, 3.5mm, 4.0mm), and 2.0mm diameter locking pegs. Design: Polyaxial locking up to 15 degrees; universal configuration. Sterilization: Not specified. Connectivity: None (mechanical device).
Indications for Use
Indicated for adult and pediatric patients requiring fixation of fractures, osteotomies, and nonunions of the distal tibia and fibula (including malleolar fractures, syndesmosis injuries, and avulsion fractures) or stabilization of fresh fractures, joint fusion, and reconstruction of small bones in the hand, feet, wrist, ankles, fingers, and toes.
Regulatory Classification
Identification
Single/multiple component metallic bone fixation appliances and accessories are devices intended to be implanted consisting of one or more metallic components and their metallic fasteners. The devices contain a plate, a nail/plate combination, or a blade/plate combination that are made of alloys, such as cobalt-chromium-molybdenum, stainless steel, and titanium, that are intended to be held in position with fasteners, such as screws and nails, or bolts, nuts, and washers. These devices are used for fixation of fractures of the proximal or distal end of long bones, such as intracapsular, intertrochanteric, intercervical, supracondylar, or condylar fractures of the femur; for fusion of a joint; or for surgical procedures that involve cutting a bone. The devices may be implanted or attached through the skin so that a pulling force (traction) may be applied to the skeletal system.
Predicate Devices
Medline UNITE® Ankle Fracture Plating System (K162829)
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September 27, 2022
Image /page/0/Picture/1 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which consists of the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG" in blue, with the word "ADMINISTRATION" underneath in a smaller font.
Medline Industries, LP Jennifer Mason Regulatory Affairs Principal Three Lakes Drive Northfield, Illinois 60093
Re: K221360
Trade/Device Name: Medline UNITE® Medial Malleolus Peg Plate System Regulation Number: 21 CFR 888.3030 Regulation Name: Single/Multiple Component Metallic Bone Fixation Appliances And Accessories Regulatory Class: Class II Product Code: HRS, HWC Dated: August 19, 2022 Received: August 26, 2022
Dear Jennifer Mason:
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 statutes and regulations administered by other Federal agencies. You must comply with all the Act's
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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 803) for devices or postmarketing safety reporting (21 CFR 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 (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-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-regulatoryassistance/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,
For: Shumaya Ali, M.P.H. Assistant Director DHT6C: Division of Restorative, Repair and Trauma 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
510(k) Number (if known) K221360
#### Device Name
Medline UNITE® Medial Malleolus Peg Plate System
Indications for Use (Describe)
The Medline UNITE® Medial Malleolus Peg Plate System, when used in conjunction with the Medline UNITE® Locking and Non-Locking Screws, are indicated for fixation of fractures, and nonunions of the distal tibia and fibula such as:
- · Medial Malleolar Fractures
- · Lateral Malleolar Fractures
- · Syndesmosis Injuries
- Bi-Malleolar Fractures
- Tri-Malleolar Fractures
- Vertical Shear Fractures of the Medial Malleolus
- · Medial Malleolar Avulsion Fractures
- · Lateral Malleolar Avulsion Fractures
In addition, the Medline UNITE® Locking Pegs, when used in conjunction with the Medline UNITE® Mini Plates and Screws, are indicated for use in stabilization of fresh fractures, joint fusion and reconstruction of small bones of the hand, feet, wrist, ankles, fingers and toes. The system can be used in both adult and pediatric (adolescent and child) patients.
| Type of Use (Select one or both, as applicable) | |
|--------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------|
| <div> <span> <span style="font-size: 16px;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> □ Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
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Image /page/3/Picture/0 description: The image features the Medline logo, set against a blue background. The logo consists of the word "MEDLINE" in a sans-serif font, positioned to the left of a stylized white starburst symbol. The starburst is composed of four pointed shapes converging at a central point. A small gray rectangle is visible in the upper right corner of the image.
1edline Industries, LP Three Lakes Drive Northfield. IL 60093
# 510(k) SUMMARY [AS REQUIRED BY 21CFR807.92(c)]
# Submitter / 510(k) Sponsor
Medline Industries, LP Three Lakes Drive Northfield, IL 60093
Registration Number: 1417592
# Contact Person
Contact Person: Jennifer Mason, Senior Regulatory Affairs Principal Phone: 847-643-3652 Email: jamason@medline.com
Summary Preparation Date August 5, 2022
Type of 510(k) Submission Traditional
# Device Name / Classification
Trade Name: Medline UNITE® Medial Malleolus Peg Plate System Common Name: Plate, Fixation, Bone Screw, Fixation, Bone Classification Name: Single/multiple component metallic bone fixation appliances and accessories Smooth or threaded metallic bone fixation fastener Product Code: HRS HWC Classification Panel: Orthopedic Regulatory Class: Class II Regulation Number: 21 CFR 888.3030 21 CFR 888.3040
# Primary Predicate Device
Medline UNITE® Ankle Fracture Plating System K162829
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Image /page/4/Picture/0 description: The image shows the Medline logo. The logo is set against a blue background. The word "MEDLINE" is in white, bold letters, and to the right of the word is a white star-like symbol with four points. The top right corner of the image has a gray bar.
Medline Industries, LP Three Lakes Drive Northfield. IL 60093
# Predicate Device
Stryker VariAx 2 System K132502
Medline UNITE® Mini Plates and Screws K181820
Reference Device Medline Foot Plates and Screws K151235
#### Device Description
The Medline UNITE® Medial Malleolar Peg Plate System consists of implants manufactured from Titanium Alloy (Ti-6Al-4V ELI). The system includes plates offered in two sizes. The plates can accommodate Ø2.7mm. Ø3.5mm. and Ø4.0mm locking and non-locking screws and Ø2.0mm locking pegs. The system also includes reusable instrumentation necessary to implant the plates, screws, and pegs, e.g. plate inserter. wire sleeve.
#### Indications for Use
The Medline UNITE® Medial Malleolus Peg Plate System, when used in conjunction with the Medline UNITE® Locking and Non-Locking Screws, are indicated for fixation of fractures, osteotomies, and nonunions of the distal tibia and fibula such as:
- . Medial Malleolar Fractures
- Lateral Malleolar Fractures
- Syndesmosis Injuries
- Bi-Malleolar Fractures ●
- Tri-Malleolar Fractures
- . Vertical Shear Fractures of the Medial Malleolus
- Medial Malleolar Avulsion Fractures ●
- . Lateral Malleolar Avulsion Fractures
In addition, the Medline UNITE® Locking Pegs, when used in conjunction with the Medline UNITE® Mini Plates and Screws, are indicated for use in stabilization of fresh fractures, revision procedures, joint fusion and reconstruction of small bones of the hand, feet, wrist, ankles, fingers and toes. The system can be used in both adult and pediatric (adolescent and child) patients.
#### Summary of Technological Characteristics
The proposed device is substantially equivalent to the primary predicate, Medline UNITE® Ankle Fracture Plating System. A discussion of similarities and differences is listed below.
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Image /page/5/Picture/0 description: The image features the Medline logo set against a blue background. The logo consists of the word "MEDLINE" in a sans-serif font, positioned to the left of a stylized white starburst symbol. The starburst is composed of four pointed shapes converging at a central point, creating a dynamic and modern design.
Medline Industries, Three Lakes Drive Northfield. IL 60093
- Intended Use identical. The Medline UNITE Medial Malleolus Peg Plate System and the predicate ● device are both intended for fixation of fractures, osteotomies and nonunions of the distal tibia and fibula.
- Indications for Use similar. The Medline UNITE® Medial Malleolus Peg Plate System has the . same indications for use as the predicate device, however, the subject device has more narrowed indications in comparison.
- . Materials - identical. The proposed device and the predicate device are both made from titanium alloy.
- . Design Features - similar. Both the proposed plates and the predicate device feature polyaxial locking up to 15 degrees. Both plates can be used with 2.7mm, 3.5mm and 4.0mm locking and nonlocking screws.
- Design Configurations similar. Both the Medline UNITE® Medial Malleolus Peg Plates and the ● predicate plates are offered in a universal configuration. Although the predicate plates are also offered in left and right configurations, whereas, the proposed plates are not.
- . Peg Lengths - similar. The Medline UNITE® Medial malleolus Pegs will be offered in lengths of 10mm to 60mm. The predicate pegs are offered in lengths of 16mm. Although the subject pegs are longer as compared to the predicate device, the 2.7mm, 3.5mm and 4.0mm Medline UNITE Foot Plating Screws which are being included as a reference device are available in lengths from 10mm up to 60mm.
- . Peg Diameters - identical. The Medline UNITE® Medial Malleolus Pegs will be offered in a 2.0mm diameter which is the exact same diameter as the predicate VariAx 2 pegs.
# Summary of Non-Clinical Testing
#### Biocompatibility Testing
The Medline UNITE® Medial Malleolus Peg Plate System is manufactured from titanium alloy conforming to ASTM F136 or ISO 5832-3. The subject device and the predicate device are both manufactured from the identical raw material using the same manufacturing process, therefore, biocompatibility testing was leveraged from the predicate submission to support biocompatibility on the subject device.
# Performance Testing (Bench)
The subject device, the Medline UNITE® Medial Malleolus Peg Plate System, do not represent a new, worstcase when compared to the previously cleared Medline UNITE® Ankle Fracture Plating System. An engineering analysis was performed to determine that the subject screws do not present a new worst-case for
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ledline Industries. Three Lakes Drive Northfield. IL 60093
torsional yield strength when compared to the predicate. Based on this analysis, the subject device, Medline UNITE® Medial malleolus Peg Plate System, is substantially equivalent to the predicate, Mediine UNITE® Ankle Fracture Plating System.
#### Performance Testing (Animal)
This section does not apply. No animal testing was performed.
#### Performance Testing (Clinical)
This section does not apply. No clinical testing was performed.
# Summary of Clinical Testing
Not applicable.
#### Conclusion
In accordance with 21 CFR Part 807, and based on the information provided in this premarket notification, Medline Industries, Inc. concludes that the Medial Malleolus Peg Plate System are as safe and as effective for their intended use as the predicate device, the Medline UNITE® Ankle Fracture Plating System K162829.
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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.