OPTETRAK TOTAL KNEE SYSTEM SIZE 0/1 DELTA (LINE EXTENSION)
Applicant
Exactech, Inc.
Product Code
JWH · Orthopedic
Decision Date
Jul 16, 2001
Decision
SESE
Submission Type
Special
Regulation
21 CFR 888.3560
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The OPTETRAK® Total Knee Systems are indicated for use in skeletally mature individuals undergoing primary surgery for total knee replacement due to osteoarthritis, osteonecrosis, rheumatoid arthritis and/or post-traumatic degenerative problems. They are also indicated for revision of failed previous reconstructions where sufficient bone stock and soft tissue integrity are present. CAUTION: For cemented use only in the USA.
Device Story
Optetrak Total Knee System line extension (Size 0 and 1 Delta) provides smaller-scale femoral and tibial components for total knee arthroplasty. Femoral components (Size 0) are Cobalt Chromium alloy; tibial inserts are UHMWPE; tibial trays and augments are Titanium alloy. System includes cruciate retaining (CR), posterior stabilized (PS), and constrained condylar (CC) styles. Designed for surgical implantation by orthopedic surgeons in clinical settings. Components utilize existing Optetrak locking mechanisms for assembly. Device provides structural replacement of knee joint surfaces to restore function and reduce pain in patients with degenerative joint disease. Performance verified via design assurance reviews confirming adequacy for in vivo loading.
Clinical Evidence
Bench testing only. Design assurance reviews were conducted to verify implant performance for anticipated in vivo loading. No clinical data was required or provided.
Technological Characteristics
Materials: Cobalt Chromium alloy (ASTM F-75) for femoral components; UHMWPE (ASTM F648) for tibial inserts; Titanium alloy (Ti 6Al 4V, ASTM F136) for tibial trays and augments. Design: Modular knee prosthesis with CR, PS, and CC styles. Sterilization: Gamma radiation (25-37 kGy) to SAL 10^-6.
Indications for Use
Indicated for skeletally mature individuals requiring primary total knee replacement due to osteoarthritis, osteonecrosis, rheumatoid arthritis, or post-traumatic degeneration, and for revision of failed reconstructions with sufficient bone stock and soft tissue integrity. Contraindicated in patients with active infection, insufficient bone stock or soft tissue integrity, mental/neuromuscular disorders preventing joint control, or conditions where weight/age/activity level risk extreme loads and early failure.
Regulatory Classification
Identification
A knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace a knee joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. This generic type of device includes prostheses that have a femoral component made of alloys, such as cobalt-chromium-molybdenum, and a tibial component or components and a retropatellar resurfacing component made of ultra-high molecular weight polyethylene. This generic type of device is limited to those prostheses intended for use with bone cement (§ 888.3027).
{0}------------------------------------------------
K011976
2320 NW 66TH COUR GAINESVILLE, FL 3265
352-377-1140 FAX 352-378-2617
JUL 1 6 2001
Exactech® Optetrak ™ Total Knee System Size 0 / 1 Delta Line Extension
510(k) Summary of Safety and Effectiveness Special 510(k)
Sponsor:
Exactech® Inc. 2320 N.W. 66th Court Gainesville, Florida 32653
| Phone: | (352) - 377 - 1140 |
|--------|--------------------|
| Fax: | (352) - 378 - 2617 |
FDA Establishment Number 1038671
Contact: Gary J. Miller, Ph.D. V.P. of Research and Development
Date:
June 13, 2001
Section 4 Page 1 of 5
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# 510(k) Summary of Safety and Effectiveness Special 510(k)
### Classifications / Proprietary Names:
Classification Name:
Prosthesis, knee, patellofemorotibial, semi-contrained, cemented, polymer/metal polymer
Trade / Proprietary Model Names:
Optetrak Total Knee System Size 0 / 1 Delta
JWH Product Code: C.F.R. Section: 888.3560
Device Class: II
Classification Panel: Orthopedic
## Legally Marketed Devices for Substantial Equivalence Comparison:
| Exactech Predicate Devices | | |
|------------------------------------|--------------|---------------|
| Model | Manufacturer | 510(k) Number |
| Optetrak CR Femoral | Exactech | #K932690 |
| Optetrak PS Femoral | Exactech | #K933494 |
| Optetrak Porous CR Femoral | Exactech | #K935726 |
| Optetrak PS Tibial Insert | Exactech | #K933610 |
| Optetrak CR Tibial Insert | Exactech | #K932776 |
| Optetrak CC Tibial Insert | Exactech | #K954208 |
| Optetrak Finned Tibial Tray | Exactech | #K932776 |
| Optetrak Finned Porous Tibial Tray | Exactech | #K936079 |
| Optetrak Trapezoidal Tibial Tray | Exactech | #K933610 |
| Optetrak Tibial Augments | Exactech | #K933610 |
### Predicate Devices from other Manufacturers
| Nexgen | Zimmer | ---------- |
|--------|-------------------|------------|
| Maxim | Biomet | ---------- |
| PFC | Johnson & Johnson | ---------- |
{2}------------------------------------------------
# 510(k) Summary of Safety and Effectiveness Special 510(k)
### Device Information:
#### INDICATIONS
The OPTETRAK® Total Knee Systems are indicated for use in skeletally mature individuals undergoing primary surgery for total knee replacement due to osteoarthritis, osteonecrosis, rheumatoid arthritis and/or post-traumatic degenerative problems. They are also indicated for revision of failed previous reconstructions where sufficient bone stock and soft tissue integrity are present.
#### CAUTION: For cemented use only in the USA.
### CONTRAINDICATIONS
The OPTETRAK® Total Knee Systems are contraindicated in patients with active infection, patients without sufficient bone stock to allow appropriate insertion and fixation of the prosthesis, patients without sufficient soft tissue integrity to provide adequate stability, and in patients with either mental or neuromuscular disorders that do not allow control of the knee joint, and in patients whose weight, age, or activity level might cause extreme loads and early failure of the system.
### DEVICE DESCRIPTION
#### Femoral Components
The proposed Optetrak Line Extension (Size 0) femoral components are composed of Cobalt Chromium alloy (ASTM F-75). The proposed Size 0 femoral component is available in the cruciate retaining (CR) and posterior stabilized (PS) styles. The design incorporates the same design features as the predicate Optetrak femoral components on a smaller scale. The existing Optetrak patellar components (#K932690) are fully compatible with the proposed Optetrak Line Extension (Size 0) femoral components.
#### Tibial Components
The proposed Line Extension (Size 0 and 1 Delta) tibial inserts are composed of Ultra High Molecular Weight Polyethylene - UHMWPE (ASTM F648). The proposed insert components for the Size 0 are available in the cruciate retaining (CR) and posterior stabilized (PS) styles, similar to those in the existing Optetrak system. The proposed insert components for the Size 1 Delta are available in cruciate retaining (CR), posterior stabilized (PS), and constrained condylar (CC) styles, similar to those in the existing Optetrak system. The predicate and proposed models have the same locking mechanism . for assembly of the polymer insert into the tibial trav.
> Section 4 Page 3 of 5
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## 510(k) Summary of Safety and Effectiveness Special 510(k)
In addition, the CC spine stiffener screw line has been expanded to accommodate the Size 1 Delta CC tibial inserts. This screw acts as a stabilizing force in the spine of the CC tibial insert. The screw varies in length according to tibial insert thickness and is packaged with the appropriate insert.
#### Tibial Tray Components
Optetrak Line Extension (Size 0 and 1 Delta) tibial tray components are designed to accept the modular tibial insert (described above). The proposed tibial tray components are composed of Titanium alloy (Ti 6A1 4 V), which is the same as the predicate Optetrak trays. The locking mechanism is identical to that of the predicate Optetrak system. Similarly, the proposed line extension offers a finned stem tray version and a trapezoid stem tray version. Both designs have tibial component options that allow for upsizing and downsizing on the tibia.
#### Augmentation Components
The proposed Optetrak Line Extension (Size 0 and 1 Delta) tibial augment components are designed to work with their corresponding Size 0 and 1 Delta trapezoid tibial trays. The components are composed of Titanium alloy (Ti 6 Al 4V) conforming to ASTM F136.
| Material | Composition |
|---------------------|-----------------------------------|
| Inner / Outer Trays | PETG - 0.040" thickness |
| Tray Lids | Spun-Bonded Olefin - Tyvek® |
| Inserts | Medium grade LD45 Foam |
| Box | Heavy weight cardboard |
| Outer Shrink-Wrap | Clear, Light-Weight Plastic |
| Shipping Cartons | Heavy-weight Corrugated Cardboard |
#### PACKAGING MATERIALS
#### STERILIZATION INFORMATION
Method: Gamma radiation (Cobalt 60 source) Dose: 25 - 37 kGy Sterility Assurance Level (SAL): 10-6
{4}------------------------------------------------
# 510(k) Summary of Safety and Effectiveness Special 510(k)
### PERFORMANCE DATA
Design assurance reviews were conducted to verify that the implant performance would be adequate for anticipated in vivo loading. These activities did not indicate the need for additional testing beyond that performed for validation of the previously mentioned predicate Optetrak models.
We conclude that the Optetrak Size 0 / 1 Delta components are substantially equivalent to other devices legally marketed in the United States, most notably Exactech's predicate Optetrak products.
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Image /page/5/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three lines forming its body and wings. The eagle is enclosed in a circle, with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" surrounding the upper portion of the circle.
#### Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
# JUL 1 6 2001
Gary J. Miller, Ph.D. Vice President of Research and Development Regulatory Representative Exactech, Inc 2320 N.W. 66th Court Gainesville, Florida 32653
Re: K011976
Trade Name: Optetrak Total Knee System Size 0/1 Delta Regulation Number: 888.3560 Regulatory Class: II Product Code: JWH Dated: June 21, 2001 Received: June 25, 2001
#### Dear Dr. Miller:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). 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.
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through perrodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
{6}------------------------------------------------
Page 2 - Gary J. Miller, Ph.D.
This letter will allow you to begin marketing your device as described in your - 10kk) premarket I his letter will anow you to begin marketing your arence of your device to a legally marketed notification. The IDA intimation of substantial equal device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFF Part 801 and If you desire specific advice for your actives on our can research the Office of Compliance at additionally 809.10 for mi vitio diagnostions on the promotion and advertising of your device, (301) 594-4039. Additionally, for quest 213-01) 594-4639. Also, please note the regulation please contact the Office of Compilance at (301) of CFR 807.97). Other general entitled, "Misoranding by relected to premation news be obtained from the Division of Small
information on your responsibilities under the Act may 1901) 142, 6507 and information on your responsibilities and in 1991 million (800) 638-2041 or at its Manufacturers "http://www.fda.gov/cdrh/dsmamain.html".
Sincerely yours,
Mark N-Mullinson
Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{7}------------------------------------------------
### Exactech® Optetrak Total Knee System Size 0 / 1 Delta
### Indications for Use
510(k) Number:
K011976
Device Name:
Optetrak Total Knee System Size 0 / 1 Delta
### INDICATIONS
The OPTETRAK® Total Knee Systems are indicated for use in skeletally mature individuals undergoing primary surgery for total knee replacement due to osteoarthritis, osteonecrosis, rheumatoid arthritis and/or post-traumatic degenerative problems. They are also indicated for revision of failed previous reconstructions where sufficient bone stock and soft tissue integrity are present.
CAUTION: For cemented use only in the USA.
#### CONTRAINDICATIONS
The OPTETRAK® Total Knee Systems are contraindicated in patients with active infection, patients without sufficient bone stock to allow appropriate insertion and fixation of the prosthesis, patients without sufficient soft tissue integrity to provide adequate stability, and in patients with either mental or neuromuscular disorders that do not allow control of the knee joint, and in patients whose weight, age, or activity level might cause extreme loads and early failure of the system.
Mark n Milkeran
(Division Sign-Off) Division of General, Restorative and Neurological Devices
510(k) Number.
Please do not write below this line - use another page if needed
Concurrence of CDRH, Office of Device Evaluation7(ODE)
Prescription Use
\$\eta^{er}\$
or
Over the Counter Use
No
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.