FootHold™ System is intended to be used for suture or tissue fixation in the foot, ankle, hand, and wrist. Specific indications are listed below: Hand/Wrist: Scapholunate Ligament Reconstruction, Carpal Ligament Reconstruction, Repair/Reconstruction of Collateral Ligaments, Repair of Flexor and Extensor Tendons at the PIP, and MCP Joints for All Digits, Digital Tendon Transfers Foot/Ankle: Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair, Metatarsal Ligament Repair, Hallux Valgus Reconstruction, Digital Tendon Transfers, Mid-Foot Reconstruction
Device Story
FootHold™ System is a preloaded suture anchor device designed to attach soft tissues to bone. The device is deployed through a bicortical drill hole and secured on the far cortex. It is used by surgeons in clinical settings for orthopedic procedures including ligament reconstruction and tendon repair in the extremities. The device provides mechanical fixation of soft tissue to bone, facilitating healing and stabilization. It benefits patients by enabling secure tissue attachment during reconstructive surgeries.
Clinical Evidence
Bench testing only. Mechanical testing compared abrasion and construct pull-out strength against the predicate. Results demonstrated statistically significant improvement in pull-out strength for the subject device. Biocompatibility testing met ISO 10993-1 requirements. Sterility and packaging validation confirmed a 5-year shelf life and compliance with ANSI/AAMI/ISO standards.
Technological Characteristics
Implant manufactured from titanium alloy (ASTM F136). Dimensions: 1.1mm diameter, 4.0mm length. Employs bicortical fixation principle. Sterilized via Ethylene Oxide (SAL 10^-6). No software or electronic components.
Indications for Use
Indicated for suture or tissue fixation in foot, ankle, hand, and wrist for patients requiring ligament reconstruction, tendon repair, or stabilization.
Regulatory Classification
Identification
A smooth or threaded metallic bone fixation fastener is a device intended to be implanted that consists of a stiff wire segment or rod made of alloys, such as cobalt-chromium-molybdenum and stainless steel, and that may be smooth on the outside, fully or partially threaded, straight or U-shaped; and may be either blunt pointed, sharp pointed, or have a formed, slotted head on the end. It may be used for fixation of bone fractures, for bone reconstructions, as a guide pin for insertion of other implants, or it may be implanted through the skin so that a pulling force (traction) may be applied to the skeletal system.
Force Fiber Polyethylene Nonabsorbable Suture (K063778)
Submission Summary (Full Text)
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April 15, 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, with the letters "FDA" in a blue square. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
CrossRoads Extremity Systems, LLC Kim Strohkirch VP, QA/RA/Compliance 6423 Shelby View Drive, Suite 101 Memphis. Tennessee 38134
Re: K220797
Trade/Device Name: FootHold™ System Regulation Number: 21 CFR 888.3040 Regulation Name: Smooth Or Threaded Metallic Bone Fixation Fastener Regulatory Class: Class II Product Code: MBI Dated: March 17, 2022 Received: March 18, 2022
Dear Kim Strohkirch:
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
Laura C. Rose, Ph.D. 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) K220797
Device Name FootHold System
#### Indications for Use (Describe)
FootHold™ System is intended to be used for suture or tissue fixation in the foot, ankle, hand, and wrist. Specific indications are listed below:
Hand/Wrist: Scapholunate Ligament Reconstruction, Carpal Ligament Reconstruction, Repair/Reconstruction of Collateral Ligaments, Repair of Flexor and Extensor Tendons at the PIP, and MCP Joints for All Digits, Digital Tendon Transfers
Foot/Ankle: Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair, Metatarsal Ligament Repair, Hallux Valgus Reconstruction, Digital Tendon Transfers, Mid-Foot Reconstruction
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|--|
|-------------------------------------------------|--|
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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Image /page/3/Picture/1 description: The image shows the logo for Crossroads Extremity Systems. The logo consists of a square made up of four smaller squares in the colors blue and green. To the right of the square is the company name, "Crossroads," in gray, with the trademark symbol next to it. Below the company name is the text "Extremity Systems" in a smaller font, also in gray.
## 510(k) Summary
| Date: | April 14, 2022 |
|--------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Name: | FootHold™System |
| Establishment<br>Registration: | 3020584246 |
| Company: | CrossRoads Extremity Systems<br>6423 Shelby View Dr., Suite 101<br>Memphis, TN 38134, USA<br>Recently acquired by DePuy Synthes, Inc, the<br>orthopaedics company of Johnson & Johnson |
| Contact Person: | Kim Strohkirch<br>Vice President, QA/RA/Compliance<br>CrossRoads Extremity Systems<br>901.221.8406<br>kstrohkirch@crextremity.com |
| Trade Name: | FootHold™System |
| Common Name: | Fastener, Fixation, Soft Tissue |
| Classification: | Class II |
| Regulation Number: | 888.3040 Smooth or threaded metallic bone fixation<br>fastener |
| Panel: | Orthopedic |
| Product Code: | MBI |
| Predicate Devices: | Primary Predicate:<br>K153585 FlipButton Suture Anchor |
| Device Description: | The FootHold™System is a device which is preloaded with<br>suture and is designed to attach soft tissues to bone. The<br>device is deployed through a bicortical drill hole and<br>secured on the far cortex. |
| Indications for Use: | FootHold™System is intended to be used for suture or<br>tissue fixation in the foot, ankle, hand, and wrist. Specific<br>indications are listed below: |
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Image /page/4/Picture/1 description: The image shows the logo for "CrossRoads Extremity Systems". The logo consists of a square made up of four smaller squares in the colors blue and green. To the right of the square is the text "CrossRoads" in a gray sans-serif font, with a trademark symbol in the upper right corner. Below the word "CrossRoads" is the text "Extremity Systems" in a smaller, lighter gray font.
Hand/Wrist: Scapholunate Ligament Reconstruction. Carpal Ligament Reconstruction, Repair/Reconstruction of Collateral Ligaments. Repair of Flexor and Extensor Tendons at the PIP, DIP, and MCP Joints for All Digits, Digital Tendon Transfers
Foot/Ankle: Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair, Metatarsal Ligament Repair, Hallux Valgus Reconstruction, Digital Tendon Transfers, Mid-Foot Reconstruction
- Materials: The FootHold™System implant components are manufactured from titanium alloy (ASTM F136).
Substantial Equivalence: Mechanical testing and analysis of the worst-case FootHoId™System was performed to compare abrasion and construct pull-out strength for the subject and predicate devices. The results demonstrate the predicted performance of the FootHold™System is substantially equivalent to the predicate devices. There are no substantive differences between the FootHold™System and the cited predicates with respect to intended use and technological characteristics. The FootHold™System possesses the same technological characteristics as the predicate devices, including:
- Predicted performance and method of stabilization, ●
- Materials of manufacture, .
- Basic design, and .
- Mechanical properties.
Difference of suture strength and dimensions were evaluated, and the subject device is substantially equivalent to the predicate device.
| | Subject Device | Predicate Device | Comparison |
|---------------------|---------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------|----------------|
| 510(k) | N/A | K153585 | Not applicable |
| Name | FootHoldTMSystem | Flip Button Suture Anchor | Not applicable |
| Images | Image: FootHold System | Image: Flip Button Suture Anchor | Not applicable |
| Product Code | MBI (888.3040 Smooth or threaded metallic bone fixation fastener) | MBI (888.3040 Smooth or threaded metallic bone fixation fastener) | Identical |
| Indications for Use | FootHoldTMSystem is intended to be used for suture or tissue fixation in the foot, ankle, hand, and wrist. Specific indications are listed below: | The First Ray Flip Button Suture Anchor is intended to be used for suture or tissue fixation in the foot, ankle, hand, and wrist. Specific | Identical |
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Image /page/5/Picture/1 description: The image shows the logo for Crossroads Extremity Systems. The logo consists of a series of four squares in the colors blue and green, followed by the word "Crossroads" in a sans-serif font. Below the word "Crossroads" is the phrase "Extremity Systems" in a smaller font. The logo is simple and modern, and the colors are bright and eye-catching.
| | Subject Device | Predicate Device | Comparison |
|---------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------|
| | Hand/Wrist: Scapholunate<br>Ligament Reconstruction, Carpal<br>Ligament Reconstruction,<br>Repair/Reconstruction of Collateral<br>Ligaments, Repair of Flexor and<br>Extensor Tendons at the PIP, DIP,<br>and MCP Joints for All Digits, Digital<br>Tendon Transfers<br>Foot/Ankle: Lateral Stabilization,<br>Medial Stabilization, Achilles<br>Tendon Repair, Metatarsal<br>Ligament Repair, Hallux Valgus<br>Reconstruction, Digital Tendon<br>Transfers, Mid-Foot Reconstruction | indications are listed below:<br>Hand/Wrist: Scapholunate Ligament<br>Reconstruction, Carpal Ligament<br>Reconstruction, Repair/Reconstruction<br>of Collateral Ligaments, Repair of<br>Flexor and Extensor Tendons at the<br>PIP, DIP and MCP Joints for All Digits,<br>Digital Tendon Transfers<br>Foot/Ankle: Lateral Stabilization,<br>Medial Stabilization, Achilles Tendon<br>Repair, Metatarsal Ligament Repair,<br>Hallux Valgus reconstruction, Digital<br>Tendon Transfers, Mid-Foot<br>Reconstruction | |
| Material | Medical grade titanium alloy<br>(ASTM F136) | Medical grade titanium alloy<br>(ASTM F136)<br>PEEK (ASTM F2026) | Subset of<br>material of<br>predicate |
| Dimensions | Diameter: 1.1mm<br>Length: 4.0mm | Diameter: 1.1mm, 2.0mm, 3.4mm<br>Length: 4.0mm, 6.5mm, 10.0mm | Subset of<br>predicate<br>dimensions; |
| | Suture: #2-0 –Premium UHMWPE<br>HS Fiber®, RB-0016VG (Riverpoint<br>Medical, K190817) Blue-Blue | Suture: #2-0 - #2 Force Fiber<br>Polyethylene Nonabsorbable Suture<br>(TeleFlex, K063778) | Substantially<br>equivalent<br>suture |
| Sterilization | Sterile - Ethylene Oxide | Sterile - Ethylene Oxide | Identical |
Performance Testing: Mechanical testing was conducted to demonstrate the suture does not present a new worst-case for abrasion strength. Bench testing for mechanical pull-out strength shows that there was a statistically significant improvement of pull-out strength for the subject device as compared to the listed predicate.
> A sterility assurance level (SAL) of 10-6 has been established in conformance with ANSI/AAMI/ISO 11135-1. The validation meets the residuals of ethylene oxide and ethylene chlorohydrin are below the thresholds specified in ANSI/AAMI/ISO 10993-7. Packaging has met all acceptance criteria for labeling of 5-year shelf life (ISO ISO11607-2). Bacterial endotoxin testing meets the established limits.
Based on the comparative analysis, subject FootHold™System meets ISO 10993-1 for biocompatibility. The results demonstrate the performance of the subject FootHold™System is substantially equivalent to the predicate device.
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Image /page/6/Picture/1 description: The image shows the logo for Crossroads Extremity Systems. The logo consists of four squares in the colors blue and green, arranged in a 2x2 grid. To the right of the squares is the text "CrossRoads" in a gray, sans-serif font, with a trademark symbol after the word. Below the word "CrossRoads" is the text "Extremity Systems" in a smaller, light blue font.
## Conclusion:
There are no substantial differences between the FootHold™System and the predicate devices with respect to intended use and technological characteristics, including basic design, materials of manufacture, mechanical properties, and intended effect.
Therefore, the FootHold™System can be found substantially equivalent to the cited predicate, as it does not raise new questions of safety and effectiveness.
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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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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?
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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.
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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.
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Reading rule for every project: how many summaries do you read in full?
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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.
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.
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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.
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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.
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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.