ORTHOLOC™ 3Di Ankle Fusion Plating System: Wright's ORTHOLOCTM 3Di Ankle Fusion Plating System is intended to facilitate arthrodesis of the ankle including tibiotalocalcaneal and tibiotalar joints and tibiocalcaneal arthrodeses, in conjunction with osteotomies and fractures of the distal tibia, talus, and calcaneus. ORTHOLOC™ Bone Screws: ORTHOLOC™ Bone Screws are indicated for use in bone reconstruction, osteotomy, arthrodesis, joint fusion, fracture repair, and fracture fixation, appropriate for the size of the device.
Device Story
System comprises titanium alloy plates and bone screws for ankle arthrodesis and fracture fixation; plates feature poly-axial locking screw holes and compression slots; screws include cancellous/cortical, partially/fully threaded, non-locking variants. Used by orthopedic surgeons in clinical settings to stabilize bone segments; screws utilize washers to distribute loads and prevent cortical breakthrough. Device provides mechanical fixation to facilitate bone fusion and healing. Performance verified via bench testing of torque, pullout resistance, and stress response.
Materials: Titanium alloy (ASTM F136 or ISO 5832-3). Components: Poly-axial locking plates (up to 15° off-axis), 4.5mm/5.5mm locking and non-locking screws, washers. Energy source: None (mechanical). Connectivity: None. Sterilization: Not specified.
Indications for Use
Indicated for patients requiring bone reconstruction, osteotomy, arthrodesis, joint fusion, fracture repair, or fracture fixation of the distal tibia, talus, and calcaneus.
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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K121425 '
1 2012
## 510(K) SUMMARY OF SAFETY AND EFFECTIVENESS
In accordance with the Food and Drug Administration Rule to implement provisions of the Safe Medical Devices Act of 1990 and in conformance with 21 CFR 807.92, this information serves as a Summary of Safety and Effectiveness for the use of the ORTHOLOC™ 3Di Ankle Fusion Plating System.
1. Submitted By:
Date:
Contact Person:
2. Proprietary Name:
Common Name:
Classification Name and Reference:
Device Product Code, Device Panel:
- 3. Predicate Devices:
Wright Medical Technology, Inc. 5677 Airline Road Arlington, TN 38002
August 6, 2012
Samir Ibrahim, PhD, RAC Regulatory Affairs Specialist II (901) 290-5909
ORTHOLOC™ 3Di Ankle Fusion Plating System and ORTHOLOCTM Bone Screws
Bone Plate System Screw, Fixation, Bone
21 CFR 888.3030 - Class II 21 CFR 888.3040 - Class II
HRS: Orthopedic HWC: Orthopedic
- K110670 -PERI-LOC Ankle Fusion Bone Plates
- K100176 -Ascension® Ankle Fusion Plate System
- K090139 -Torrier® Stabilis™ Ankle Arthrodesis Plate System
- K073375 -Integra® / Newdeal® Tibiazys™ System
- Newdeal® Advansys™ TTC Plate K060473 -
K061940 -Synthes® LCP Ankle Arthrdesis Plates
- K112772 -ORTHOLOCTM Bone Screws
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### 4. Device Description
ORTHOLOC™ 3Di Ankle Fusion Plating System: The ORTHOLOC™ 3Di Ankle Fusion Plating System contains 22 plates belonging to 1 of 3 general categories based on the contouring of each plate and intended surgical approach. All plates feature poly-axial locking screw holes and one or two compression slots. The plates are made from titanium alloy conforming to ASTM F136 or ISO 5832-3 and accept 4.5mm and 5.5mm ORTHOLOC™ 3Di locking screws, 4.5mm and 5.5mm ORTHOLOC™ Fully Threaded Bone Screws, and 5.5mm ORTHOLOC™ Partially-Threaded Bone Screws. Washers of the same material are also available for use with the ORTHOLOC™ Bone Screws.
ORTHOLOC™ Bone Screws: ORTHOLOCTM Bone Screws are cancellous or cortical, partially or fully threaded non-locking screws offered in various diameters and lengths. All screws are manufactured from ASTM F136 or ISO 5832-3 titanium alloy and intended for single use only. These screws are intended to be used with the appropriately sized washers to prevent the screw head from breaking through the cortex of the bone by distributing the forces/loads over a large area.
### 5. Intended Use
ORTHOLOC™ 3Di Ankle Fusion Plating System: Wright's ORTHOLOCTM 3Di Ankle Fusion Plating System is intended to facilitate arthrodesis of the ankle including tibiotalocalcaneal and tibiotalar joints and tibiocalcaneal arthrodeses, in conjunction with osteotomies and fractures of the distal tibia, talus, and calcaneus.
ORTHOLOC™ Bone Screws: ORTHOLOC™ Bone Screws are indicated for use in bone reconstruction, osteotomy, arthrodesis, joint fusion, fracture repair, and fracture fixation. appropriate for the size of the device.
#### Technological Characteristics Comparison 6.
ORTHOLOC™ 3Di Ankle Fusion Plating System: Based on a technical feature comparison, the subject device was found to be similar to all predicate devices with regard to design and materials. The subject plates also have a polyaxial locking feature that offers locking up to 15° off-axis, similar to the design used in ORTHOLOC™ 3Di Ankle Plating System (K102429).
ORTHOLOC™ Bone Screws: Two larger screw sizes are being added to the ORTHOLOC™ Bone Screw system. They share similar head, neck, and thread designs as the smaller screws that are currently cleared under K112772. These implants are available in the following size ranges:
| Device | Diameters (mm) | Lengths (mm) |
|--------------------------------|----------------|--------------|
| Non-Locking Fully Threaded | 4.5-5.5 | 15-65 |
| Non-Locking Partially Threaded | 5.5 | 55-100 |
### 7. Substantial Equivalence - Non-Clinical Evidence
The indication statements of both the subject and predicates devices convey the same intended use and literature was provided to support the safe and effective use of plate/screw systems for fusing the ankle. Performance testing supports the effectiveness of the polyaxial
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locking feature, screw torque / pullout resistance, and stress response of the plates. The subject plate locking mechanism evaluated in this testing was found to be acceptable for offaxis mechanical screw locking up to 3x as compared to a non-locking screw. Torque and pullout testing was performed and the results exceeded the pre-determined acceptance criteria. Additionally through mechanical engineering analysis, the stress response of the worst-case plate was found to be similar to a predicate plate.
#### Substantial Equivalence - Clinical Evidence 8.
N/A
#### Substantial Equivalence - Conclusions 9.
The design characteristics and surgical approach of the subject system do not raise any new types of questions of safety or effectiveness. Performance testing supports the effectiveness of the polyaxial locking feature, screw insertion / pullout resistance, and stress response of the plates. From the evidence submitted in this 510(k), the subject devices can be expected to perform at least as well as the predicate systems.
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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized caduceus symbol, which is a staff with two snakes coiled around it. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" is arranged in a circular fashion around the caduceus symbol.
Food and Drug Administration 10903 New Hampshire Avenue Document Mail Center - WO66-G609 Silver Spring, MD 20993-0002
OCT
1 2012
Wright Medical Technology, Inc. % Samir Ibrahim, Ph.D. 5677 Airline Road Arlington, TN 38002
Re: K121425
Trade/Device Name: ORTHOLOC 3Di Ankle Fusion Plating System and ORTHOLOC Bone Screws
Regulation Number: 21 CFR 888.3030
Regulation Name: Single/multiple component metallic bone fixation appliances and accessories
CH. 11
Regulatory Class: II Product Code: HRS, HWC Dated: September 18, 2012 Received: September 19, 2012
Dear Dr. Ibrahim:
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. 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
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Page 2 - Samir Ibrahim, Ph.D.
CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Mark A. Miller
Mark N. Melkerson Director Division of Surgical, Orthopedic and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Traditional 510(k) ORTHOLOCTN 3Di Ankle Fusion Plating System Wright Medical Technology, Inc.
## INDICATIONS FOR USE STATEMENT
#### K121425 510(k) Number:
Device Name:
# ORTHOLOC™ 3Di Ankle Fusion Plating System and ORTHOLOC™ Bone Screws
Indications For Use:
Wright's ORTHOLOC™ 3Di Ankle Fusion Plating System is intended to facilitate arthrodesis of the ankle including tibiotalocalcaneal and tibiotalar joints and tibiocalcaneal arthrodeses, in conjunction with osteotomies and fractures of the distal tibia, talus, and calcaneus.
ORTHOLOC™ Bone Screws are indicated for use in bone reconstruction, osteotomy, arthrodesis, joint fusion, fracture repair, and fracture fixation, appropriate for the size of the device.
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×121425 510(k) Number
Prescription Use (Per21 CFR 801.109) OR
Over-The Counter Use (Optional Format 1-2-96)
## (PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
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.