The Arthrex KreuLock Compression Screws (2.0-3.0 mm solid) are intended to be used in a plate-screw system for internal bone fixation for bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, and wrist. When used with a plate, the screw may be used with the Arthrex Low Profile Plate. Distal Extremity Plates, Mesh Plates (2.7-3.0) and Distal Radius Plates. The Arthrex KreuLock Compression Screws (3.5 mm and larger, solid) are intended to be used in a plate-screw system for internal bone fixation for bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, wrist, clavicle, scapula, olecranon, humerus, radius, ulna, tibia, calcaneus, femur and fibula. When used with a plate, the screws may be used with the Arthrex Low Profile Plate, Small Fragment Plates, Distal Extremity Plates, Distal Radius Plates, Humeral Fracture Plates, Osteotomy Plates, and Ankle Fusion Plates. The Arthrex Compression FT Screws (2.0-3.0 mm cannulated) are intended to be used as stand-alone bone screws for internal bone fixation for bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, and wrist. The Arthrex Compression FT Screws (3.5 mm and larger, cannulated) are intended to be used as stand-alone bone screws for internal bone fixation for bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, wrist, clavicle, scapula, olecranon, humerus, radius, ulna, tibia, calcaneus, femur and fibula.
Device Story
Arthrex Compression Screws comprise KreuLock (solid, 2.4-4.5 mm diameter) and Compression FT (cannulated, 2.8-7.0 mm diameter) families; manufactured from titanium or stainless steel. KreuLock screws function as part of plate-screw systems; Compression FT screws function as stand-alone fixation. Devices used in orthopedic surgery for bone fixation; operated by surgeons. Screws provide mechanical stability to bone segments; facilitate healing of fractures, fusions, and osteotomies. Sold sterile or non-sterile; single-use. Clinical benefit derived from secure bone fixation and compression across fracture/fusion sites.
Clinical Evidence
Bench testing only. Mechanical performance evaluated via push-out, insertion/failure torque, and compression testing. MR compatibility testing performed per ASTM F2052-15, ASTM F2213-17, ASTM F2119-13, and ASTM F2182-11a.
Technological Characteristics
Materials: Titanium or Stainless Steel. Configurations: Solid (KreuLock) or Cannulated (Compression FT); straight or variable angle. Dimensions: 2.4-4.5 mm diameter (KreuLock), 2.8-7.0 mm diameter (Compression FT). Sterilization: Sterile or non-sterile. Connectivity: None (mechanical device).
Indications for Use
Indicated for internal bone fixation (fractures, fusions, osteotomies, non-unions) in ankle, foot, hand, wrist, clavicle, scapula, olecranon, humerus, radius, ulna, tibia, calcaneus, femur, and fibula. Used as stand-alone screws or with specific Arthrex plating systems.
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.
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July 27, 2020
Image /page/0/Picture/1 description: The image contains 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 is a blue square with the letters "FDA" in white. To the right of the FDA logo is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
Arthrex Inc. Samantha Passman Regulatory Affairs Associate 1370 Creekside Boulevard Naples, Florida 34108-1945
Re: K201132
Trade/Device Name: Arthrex Compression Screws 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: April 22, 2020 Received: April 28, 2020
Dear Samantha Passman:
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 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
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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 (QS) 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, MPH 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) K201132
Device Name Arthrex Compression Screws
#### Indications for Use (Describe)
The Arthrex KreuLock Compression Screws (2.0-3.0 mm solid) are intended to be used in a plate-screw system for internal bone fixation for bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, and wrist. When used with a plate, the screw may be used with the Arthrex Low Profile Plate. Distal Extremity Plates, Mesh Plates (2.7-3.0) and Distal Radius Plates.
The Arthrex KreuLock Compression Screws (3.5 mm and larger, solid) are intended to be used in a plate-screw system for internal bone fixation for bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, wrist, clavicle, scapula, olecranon, humerus, radius, ulna, tibia, calcaneus, femur and fibula. When used with a plate, the screws may be used with the Arthrex Low Profile Plate, Small Fragment Plates, Distal Extremity Plates, Distal Radius Plates, Humeral Fracture Plates, Osteotomy Plates, and Ankle Fusion Plates.
Type of Use (Select one or both, as applicable)
| <p>☑ Prescription Use (Part 21 CFR 801 Subpart D)</p> |
|-------------------------------------------------------|
| <p>☐ Over-The-Counter Use (21 CFR 801 Subpart C)</p> |
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# Indications for Use
510(k) Number (if known) K201132
Device Name Arthrex Compression Screws
Indications for Use (Describe)
The Arthrex Compression FT Screws (2.0-3.0 mm cannulated) are intended to be used as stand-alone bone screws for internal bone fixation for bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, and wrist.
The Arthrex Compression FT Screws (3.5 mm and larger, cannulated) are intended to be used as stand-alone bone screws for internal bone fixation for bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, wrist, clavicle, scapula, olecranon, humerus, radius, ulna, tibia, calcaneus, femur and fibula.
| Type of Use (Select one or both, as applicable) |
|-------------------------------------------------|
|-------------------------------------------------|
| <span style="text-decoration: underline;"><b></b></span> | <label><input checked="" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D)</label> |
|----------------------------------------------------------|-------------------------------------------------------------------------------------------------|
| <span style="text-decoration: underline;"><b></b></span> | <label><input type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C)</label> |
### 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."
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# 510(k) Summary
| Date Prepared | July 27, 2020 |
|-----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter | Arthrex Inc.<br>1370 Creekside Boulevard<br>Naples, FL 34108-1945 |
| Contact Person | Samantha Passman<br>Regulatory Affairs Associate<br>1-239-643-5553, ext. 71595<br>Samantha.passman@arthrex.com |
| Name of Device | Arthrex Compression Screws |
| Common Name | Screw, fixation, bone |
| Product Code | HRS, HWC |
| Classification Name | 21 CFR 888.3030: Single/multiple component metallic bone fixation appliances and<br>accessories (Primary)<br>21 CFR 888.3040: Smooth or threaded metallic bone fixation fastener |
| Regulatory Class | II |
| Predicate Device | K103705: Arthrex Low Profile Screws (Primary)<br>K111253: Arthrex Distal Extremity Plate System<br>K131474: Arthrex Distal Radius Plate System<br>K141735: Arthrex Ankle Fusion Plating System<br>K151732: Arthrex Fracture Plates<br>K170547: Arthrex Mesh Plates |
| Purpose of Submission | This Traditional 510(k) premarket notification is submitted to obtain clearance for<br>the Arthrex KreuLock Compression Screws as a line extension to the Arthrex Low<br>Profile Screw family of products. This submission is also seeking to obtain Low<br>Profile Screw indications for the Arthrex Compression FT Screws cleared under<br>K132217, K170382, and K182361. |
| Device Description | The Arthrex KreuLock Compression Screws are a family of screws that are offered<br>in a diameter range of 2.4 to 4.5 mm, length range of 10 to 80 mm, in a fully<br>threaded design, solid, and locking design. The Arthrex KreuLock Compression<br>Screws are intended to be used with plates in the same applications as existing<br>Arthrex Low Profile Screws. Those plates remain unchanged. The Arthrex<br>KreuLock Compression Screws are manufactured from either Titanium or<br>Stainless Steel materials and are available in straight or variable angle<br>configurations. The screws are sold sterile or non-sterile and single-use.<br><br>The Arthrex Compression FT Screws are a family of screws that are offered in a<br>diameter range of 2.8 to 7.0 mm, length range of 8 to 140 mm, in a fully threaded<br>and cannulated design. The Arthrex Compression FT Screws are manufactured<br>from Titanium. The screws are sold sterile or non-sterile and single-use. |
| Indications for Use | The Arthrex KreuLock Compression Screws (2.0-3.0 mm solid) are intended to be<br>used in a plate-screw system for internal bone fixation for bone fractures,<br>fusions, osteotomies and non-unions in the ankle, foot, hand, and wrist. When<br>used with a plate, the screw may be used with the Arthrex Low Profile Plate,<br>Small Fragment Plates, Distal Extremity Plates, Mesh Plates (2.7-3.0) and Distal<br>Radius Plates.<br><br>The Arthrex KreuLock Compression Screws (3.5 mm and larger, solid) are<br>intended to be used in a plate-screw system for internal bone fixation for bone<br>fractures, fusions, osteotomies and non-unions in the ankle, foot, hand, wrist,<br>clavicle, scapula, olecranon, humerus, radius, ulna, tibia, calcaneus, femur and<br>fibula. When used with a plate, the screws may be used with the Arthrex Low |
| | Profile Plate, Small Fragment Plates, Fracture Plates, Distal Extremity Plates,<br>Distal Radius Plates, Humeral Fracture Plates, Osteotomy Plates, and Ankle<br>Fusion Plates. |
| | The Arthrex Compression FT Screws (2.0-3.0 mm cannulated) are intended to be<br>used as stand-alone bone screws for internal bone fixation for bone fractures,<br>fusions, osteotomies and non-unions in the ankle, foot, hand, and wrist. |
| | The Arthrex Compression FT Screws (3.5 mm and larger, cannulated) are<br>intended to be used as stand-alone bone screws for internal bone fixation for<br>bone fractures, fusions, osteotomies and non-unions in the ankle, foot, hand,<br>wrist, clavicle, scapula, olecranon, humerus, radius, ulna, tibia, calcaneus, femur<br>and fibula. |
| Performance Data | Push-out, insertion torque/failure torque, and compression testing were<br>conducted to demonstrate that the proposed compression screws perform<br>statistically equivalent to the predicate. MR compatibility testing was also<br>conducted per ASTM F2052-15 (displacement force), ASTM F2213-17 (torque),<br>ASTM F2119-13 (image artifact), and ASTM F2182-11a (RF Heating). |
| Conclusion | The Arthrex Compression Screws are substantially equivalent to the predicate<br>devices in which the basic design features and intended uses are the same. Any<br>differences between the proposed devices and the predicate devices are<br>considered minor and do not raise different questions concerning safety or<br>effectiveness.<br>The submitted mechanical testing data demonstrates that the push-out, torque,<br>and compression strength of the proposed devices are substantially equivalent to<br>that of the predicate devices for the desired indications. |
| | Based on the indications for use, technological characteristics, and the summary<br>of data submitted, Arthrex Inc. has determined that the proposed devices are<br>substantially equivalent to the currently marketed predicate device. |
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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.
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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.
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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.
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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.
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Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
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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.
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A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
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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.