SALVATION® External Fixation System is intended for: Fusions of the foot including: Triple arthrodesis Isolated hindfoot arthrodesis Midfoot arthrodesis Joints involved include tibiotalar, talonavicular, calcaneocuboid, pantalar, tibio-talo-calcaneus, naviculocuneiform, metatarsal cuneiform (1st, second, third - e.g. Lapidus, TMT), metatarsal cuboid Treatment of fractures including: Treatment of Lis Franc fracture/dislocations in diabetic and Charcot neuropathy patient Fractures and/or comminuted fractures (open or closed) of the calcaneus, talus, cuboid, navicular, cuneiforms, and/or metatarsals (including Jones fractures), ankle, and distal tibia Additional fixation adjunct to internal fixation of the distal tibia, calcaneus, talus, navicular, cuboid, cuneiforms, and or metatarsals in patients with significant comorbidities (i.e. diabetes) that may preclude use of isolated internal fixation Reconstruction of deformities including: Neuropathic deformities Charcot reconstruction with or without corrective osteotomies Diabetic Charcot Reconstruction Prevention and treatment of contracture of joints and tendons in equinus Treatment of infected unions, nonunions, or malunions Offloading and or immobilization of ulcers and or wounds of the foot or ankle Stabilization associated with tendon or ligament surgeries. Tendon lengthening, repairs and or superficial around the foot and ankle including posterior tibial, tibialis anterior, flexor digitorum longus, achilles, flexor hallucis longus, peroneus brevis, peroneus longus, extensor hallucis longus, extensor digitorum longus Tumor and neoplasm resection and reconstruction Stabilization associated with rotation flaps, free flaps, advancement flaps, fasciocutaneous flap, split thickness skin grafting, biological graft alternatives Pseudoarthrosis or non-unions of long bones, limb lengthening by epiphyseal distraction osteogenesis including bone transport Correction of bony or soft tissue deformities Correction of segmental or nonsegmental bony or soft tissue defects. Use on long bones including the tibia and fibula Use with or without IM nail in the ankle in Charcot patients
Device Story
External fixation system; consists of rings, wires, wire fixation bolts, wire posts, half pins, half pin cubes, bushings, rocker plates, outsoles, and insoles. Used by orthopedic surgeons in clinical settings for bone stabilization, fracture management, and deformity correction. Provides mechanical support for foot/ankle fusions, Charcot reconstruction, and limb lengthening. Components are modular and compatible with existing SIDEKICK® systems. System provides rigid fixation to facilitate healing in patients with significant comorbidities, such as diabetes, where internal fixation may be contraindicated. Output is a physical frame assembly applied to the patient to maintain bone alignment and stability during the healing process.
Clinical Evidence
No clinical data; bench testing only.
Technological Characteristics
Modular external fixation system comprising rings, wires, pins, and associated hardware. Features preassembled frame options (160mm to 220mm). Compatible with SIDEKICK® Circular and EZ FRAME™ components. Mechanical fixation device; no software or energy source.
Indications for Use
Indicated for patients requiring foot/ankle fusion, fracture treatment (including Lis Franc, diabetic/Charcot neuropathy, comminuted), deformity reconstruction (Charcot, neuropathic), infected nonunions/malunions, ulcer offloading/immobilization, tendon/ligament surgery stabilization, tumor resection, and limb lengthening/bone transport. Applicable to long bones including tibia/fibula.
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.
{0}------------------------------------------------
Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of three human profiles facing to the right, overlapping each other to create a sense of depth and unity.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
Wright Medical Technology, Incorporated Ms. Leslie Fitch Manager, Regulatory Affairs 1023 Cherry Road Memphis, Tennessee 38117
January 13, 2016
Re: K153635 Trade/Device Name: SALVATION(R) External Fixation System Regulation Number: 21 CFR 888.3030 Regulation Name: Single/multiple component metallic bone fixation appliances and accessories Regulatory Class: Class II Product Code: KTT Dated: December 18, 2015 Received: December 18, 2015
Dear Ms. Fitch:
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 CFR Part 807); labeling (21 CFR Parts 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
{1}------------------------------------------------
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 contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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 Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
# Mark N. Melkerson -S
Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
# Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below.
510(k) Number (if known) K153635
#### Device Name
SALVATION® External Fixation System
Indications for Use (Describe)
SALVATION® External Fixation System is intended for:
· Fusions of the foot including:
Triple arthrodesis 0
Isolated hindfoot arthrodesis 0
0 Midfoot arthrodesis
Joints involved include tibiotalar, talonavicular, calcaneocuboid, pantalar, tibio-talo-calcaneus, O
naviculocuneiform, metatarsal cuneiform (1st, second, third - e.g. Lapidus, TMT), metatarsal cuboid
• Treatment of fractures including:
Treatment of Lis Franc fracture/dislocations in diabetic and Charcot neuropathy patient O
0 Fractures and/or comminuted fractures (open or closed) of the calcaneus, talus, cuboid, navicular, cuneiforms, and/or metatarsals (including Jones fractures), ankle, and distal tibia
Additional fixation adjunct to internal fixation of the distal tibia, calcaneus, talus, navicular, cuboid, cuneiforms, and O or metatarsals in patients with significant comorbidities (i.e. diabetes) that may preclude use of isolated internal fixation
· Reconstruction of deformities including:
- Neuropathic deformities 0
- Charcot reconstruction with or without corrective osteotomies 0
- Diabetic Charcot Reconstruction 0
- Prevention and treatment of contracture of joints and tendons in equinus 0
- · Treatment of infected unions, nonunions, or malunions
- · Offloading and or immobilization of ulcers and or wounds of the foot or ankle
· Stabilization associated with tendon or ligament surgeries. Tendon lengthening, repairs and or superficial around the foot and ankle including posterior tibial, tibialis anterior, flexor digitorum longus, achilles, flexor hallucis longus, peroneus brevis, peroneus longus, extensor hallucis longus, extensor digitorum longus
- · Tumor and neoplasm resection and reconstruction
· Stabilization associated with rotation flaps, free flaps, advancement flaps, fasciocutaneous flap, split thickness skin grafting, biological graft alternatives
· Pseudoarthrosis or non-unions of long bones, limb lengthening by epiphyseal distraction osteogenesis including bone transport
- · Correction of bony or soft tissue deformities
- · Correction of segmental or nonsegmental bony or soft tissue defects.
- · Use on long bones including the tibia and fibula
- · Use with or without IM nail in the ankle in Charcot patients
Type of Use (Select one or both, as applicable)
ال Prescription Use (Part 21 CFR 801 Subpart D)
_ Over-The-Counter Use (21 CFR 801 Subpart C)
{3}------------------------------------------------
#### PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
#### FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{4}------------------------------------------------
K153635 Page 1 of 3
Headquarters Wright Medical Technology, Inc.
1023 Cherry Road Memphis, TN 38117
901 867 9971 vmt.com
#### 510(K) SUMMARY
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 SALVATION® External Fixation System.
| (a)(1). Submitted By: | Wright Medical Technology, Inc. |
|------------------------------------|----------------------------------------------------------|
| | 1023 Cherry Road |
| | Memphis, TN 38117 |
| Date: | December 18, 2015 |
| Contact Person: | Leslie Fitch |
| | Manager, Regulatory Affairs |
| | Office: (901) 867-4120 |
| | Fax: (901) 867-4190 |
| (a)(2). Proprietary Name: | SALVATION <sup>®</sup> External Fixation System |
| Common Name: | External Fixation Device |
| Classification Name and Reference: | 21 CFR 888.3030 – Class II |
| Device Product Code, Device Panel: | KTT, Orthopedic |
| (a)(3). Predicate Devices: | K150004: SALVATION <sup>®</sup> External Fixation System |
| | K130044: SIDEKICK <sup>®</sup> EZ FRAME Fixator System |
| | K100137: SIDEKICK <sup>®</sup> Circular Fixation System |
| | K052005: R&R External Fixation System |
# (a)(4). Device Description
The SALVATION® External Fixation System consists of rings, wires, wire fixation bolts, wire posts with bolt, half pins, half pin cubes with bolts, bushings, rocker
{5}------------------------------------------------
plates, outsoles, insoles, etc. The Proximal and Distal Tibial Rings and Foot Ring are designed with slots.
The SALVATION® External Fixation System features 4 preassembled frame options: 160 MM FRAME with 160 mm proximal tibial ring, 140 mm distal tibial ring, and 140 mm foot ring; 180MM FRAME with 180 mm proximal tibial ring, 160 mm distal tibial and 160 foot ring; 200 MM FRAME with 200 mm proximal tibial ring, 180 mm distal tibial and 180 mm foot rings; and 220 MM FRAME (subject device) with 220 mm proximal tibial ring, 200 mm distal tibial and 200 mm foot ring. As cleared in 510(k) K150004, the SALVATION® External Fixation System is designed so that the SIDEKICK® Circular and SIDEKICK® EZ FRAME™M components are compatible and can be used with the SALVATION® External Fixation system.
# (a)(5). INTENDED USE
The SALVATION® External Fixation System is intended for:
- Fusions of the foot including: ●
- Triple arthrodesis O
- Isolated hindfoot arthrodesis 0
- Midfoot arthrodesis O
- Joints involved include tibiotalar, subtalar, talonavicular, calcaneocuboid, 0 pantalar, tibio-talo-calcaneus, naviculocuneiform, metatarsal cuneiform (1), second, third - e.g. Lapidus, TMT), metatarsal cuboid
- Treatment of fractures including: 0
- Treatment of Lis Franc fracture/dislocations in diabetic and Charcot neuropathy O patient
- Fractures and/or comminuted fractures (open or closed) of the calcaneus, talus, O cuboid, navicular, cuneiforms, and/or metatarsals (including Jones fractures), ankle, and distal tibia
- Additional fixation adjunct to internal fixation of the distal tibia, calcaneus, talus, O navicular, cuboid, cuneiforms, and/or metatarsals in patients with significant comorbidities (i.e. diabetes) that may preclude use of isolated internal fixation
- Reconstruction of deformities including: ●
- Neuropathic deformities O
- Charcot reconstruction with or without corrective osteotomies O
- Diabetic Charcot Reconstruction O
- Prevention and treatment of contracture of joints and tendons in equinus O
- Treatment of infected unions, nonunions, or malunions
- Offloading and or immobilization of ulcers and or wounds of the foot or ankle
{6}------------------------------------------------
- Stabilization associated with tendon or ligament surgeries. Tendon lengthening, ● repairs and transfers both deep and or superficial around the foot and ankle including posterior tibial, tibialis anterior, flexor digitorum longus, achilles, flexor hallucis longus, peroneus brevis, peroneus longus, extensor hallucis longus, extensor digitorum longus
- Tumor and neoplasm resection and reconstruction ●
- . Stabilization associated with rotation flaps, free flaps, muscle flaps, advancement flaps, fasciocutaneous flap, split thickness skin grafting, biological graft alternatives
- Pseudoarthrosis or non-unions of long bones, limb lengthening by epiphyseal or metaphyseal distraction osteogenesis including bone transport
- Correction of bony or soft tissue deformities ●
- Correction of segmental or nonsegmental bony or soft tissue defects.
- Use on long bones including the tibia and fibula ●
- . Use with or without IM nail in the ankle in Charcot patients
### (a)(6). Technological Characteristics Comparison
The SALVATION® External Fixation System is technologically substantially equivalent The to predicate devices in material, design features, and mechanical strength. fundamental scientific technology of the modified device has not changed relative to the predicate devices.
#### (b)(1). Substantial Equivalence - Non-Clinical Evidence
Engineering analysis demonstrated substantial equivalence comparing each modified component to the predicate components. The indications for use of the subject, SALVATION® EXTERNAL FIXATION SYSTEM are the same as the indications cleared for the predicate SALVATION® EXTERNAL FIXATION K150004.
# (b)(2). Substantial Equivalence - Clinical Evidence
N/A
## (b)(3). Substantial Equivalence - Conclusions
The design characteristics of the subject system do not raise any new types of questions of safety or effectiveness. From the evidence submitted in this 510(k), the subject devices can be expected to perform at least as well as the predicate device.
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.