OPTETRAK TOTAL KNEE SYSTEM ASYMMETRIC FEMORAL COMPONENTS SIZE 6 PSOTERIOR-STABILIZING, CEMENTED FEMORAL COMPONENTS
Applicant
Exactech, Inc.
Product Code
JWH · Orthopedic
Decision Date
Sep 23, 2003
Decision
SESE
Submission Type
Special
Regulation
21 CFR 888.3560
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Optetrak Femoral components are intended to replace the patient's distal femur during primary or revision total knee arthroplasty. The Optetrak® Asymmetric Femoral components are intended for use when needed to more closely match the geometry of the patient's resected distal femur. This change results in separate components for the right and left knees. The Asymmetric, Cruciate-Retaining Cemented components and the Asymmetric, Cruciate-Retaining, Porous-Coated Femoral Components are intended for use in total knee arthroplasty procedures in which the Posterior Cruciate Ligament (PCL) is preserved. The Optetrak® Size 6 Posterior-Stabilizing, Cemented Femoral Component and Asymmetric, Posterior-Stabilizing Femoral components are intended to replace the function of the PCL during a total knee arthroplasty in which the PCL must be sacrificed. All proposed femoral components are intended for cemented use only.
Device Story
Optetrak® Total Knee System femoral components; line extension including asymmetric femoral components and larger size 6 posterior-stabilized component. Asymmetric design features tilted lateral flange and angled proximal edge to match patient distal femur geometry; size 6 component features increased anterior-posterior and medial-lateral dimensions. Used by orthopedic surgeons in clinical settings for primary or revision total knee arthroplasty. Components replace distal femur; posterior-stabilized versions replace PCL function. Cemented use only. Benefits include improved anatomical fit and accommodation of larger patient anatomy.
Clinical Evidence
No clinical data. Verification and validation analyses were conducted via bench testing to confirm implant performance is adequate for anticipated in vivo loading.
Technological Characteristics
Femoral components for total knee arthroplasty. Materials: Metal/Polymer (implied by classification). Design: Asymmetric patellar flange (tilted lateral, angled proximal edge) and increased size 6 geometry. Energy source: None (mechanical implant). Connectivity: None. Sterilization: Not specified. Software: None.
Indications for Use
Indicated for skeletally mature individuals undergoing primary total knee replacement for osteoarthritis, osteonecrosis, rheumatoid arthritis, or post-traumatic degenerative problems; also for revision of failed previous reconstructions with sufficient bone stock and soft tissue integrity. Contraindicated in patients with active infection, insufficient bone stock/soft tissue integrity, mental/neuromuscular disorders preventing joint control, or conditions causing extreme loads/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).
Optetrak® Size 0 and 1 Delta Line Extension (K011976)
Submission Summary (Full Text)
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# KO32606
SEP 2 3 2003
## Exactech® Optetrak® Total Knee System Line Extension - Optetrak® Femoral Components Special 510(k)
### Summary of Safety and Effectiveness
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exactech® Inc. Sponsor: 2320 N.W. 66th Court Gainesville, Florida 32653 Phone: (352) 377-1140 (352) 378-2617 Fax:
FDA Establishment Number: 1038671
- Contact: Dr. Gary Miller Vice President of Research and Development
Date:
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## 1032606
## Exactech® Optetrak® Total Knee System Line Extension - Optetrak® Femoral Components Special 510(k)
#### Summary of Safety and Effectiveness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Classifications / Proprietary Names: Prosthesis, Knee, Patellofemorotibial, Semi-Classification Name: Constrained, cemented, Polymer/Metal/Polymer Optetrak® Total Knee System Trade / Proprietary Model Name: · Asymmetric Femoral Components · Size 6 Posterior-Stabilizing, Cemented Femoral Component JWH Product Code: C.F.R. Section: 888.3560 II Device Class: Orthopedic Classification Panel:
#### Exactech® Legally Marketed Devices for Substantial Equivalence Comparison:
| Model | 510(k) Number |
|--------------------------------------------------------------|---------------|
| Optetrak® Cruciate Retaining Cemented Femoral Component | K932690 |
| Optetrak® Posterior Stabilizing Cemented Femoral Component | K933494 |
| Optetrak® Cruciate Retaining Porous-Coated Femoral Component | K935726 |
| Optetrak® Size 0 and 1 Delta Line Extension | K011976 |
#### Device Information:
#### INTENDED USE
The Optetrak Femoral components are intended to replace the patient's distal femur during primary or revision total knee arthroplasty. The Optetrak® Asymmetric Femoral components are intended for use when needed to more closely match the geometry of the patient's resected distal femur. This change results in separate components for the right and left knees. The Asymmetric, Cruciate-Retaining Cemented components and the Asymmetric, Cruciate-Retaining, Porous-Coated Femoral Components are intended for
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# 2032606
## Exactech® Optetrak® Total Knee System Line Extension - Optetrak® Femoral Components Special 510(k)
### Summary of Safety and Effectiveness
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
use in total knee arthroplasty procedures in which the Posterior Cruciate Ligament (PCL) is preserved.
The Optetrak® Size 6 Posterior-Stabilizing, Cemented Femoral Component and Asymmetric, Posterior-Stabilizing Femoral components are intended to replace the function of the PCL during a total knee arthroplasty in which the PCL must be sacrificed.
All proposed femoral components are intended for cemented use only.
#### 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.
#### 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.
CAUTION: In the USA, for cemented use only.
#### Device Modifications
The device modifications presented in this Special 510(k) represent changes to the posterior stabilized, cruciate-retaining cemented, and cruciate-retaining porous coated femoral components of the Optetrak® Total Knee System (K932690, K933494, K935726, K011976). These changes include:
- 1. Modification of the patellar flange to create an asymmetric femoral component
- 2. Addition of a larger size posterior-stabilized, cemented (symmetric) femoral component
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## Exactech® Optetrak® Total Knee System Line Extension - Optetrak® Femoral Components Special 510(k)
#### Summary of Safety and Effectiveness
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No changes were made to the tibial or patellar components of the Optetrak® Total Knee System.
#### Device Modifications - Optetrak® Asymmetric Femoral Components (Optetrak® AK):
The differences in design features between the proposed Optetrak AK Femoral and predicate Optetrak® Femoral include the following:
- 1. Changes to the anterior flange to make the component asymmetric by:
- a. Tilting the flange laterally, and
- b. Angling the proximal edge of the flange medially.
- 2. Adjustments to the patella groove edges by:
- a. Increasing the edge radii resulting from the intersections of the patella groove and the trochlear condyles to smooth the edges, and
- b. Slightly lowering the profile height of the medial trochlear condyle in the proximal area as a result of the tilting of the flange.
#### Device Modifications - Optetrak® Size 6 Posterior-Stabilized, Cemented Femoral Component:
The difference in design between the proposed size 6 femoral component and the predicate femoral components consists of a size increase in the overall geometry of the component. resulting in:
- 1. An increase in the overall anterior-posterior dimension of four (4) millimeters
- 2. An increase in the overall medial-lateral dimension of five (5) millimeters
#### PERFORMANCE DATA SUMMARY
Verification and Validation analyses were conducted to verify that the implant performance would be adequate for anticipated in vivo loading.
We conclude that the Optetrak® Asymmetric Femoral Components and the Size 6 Posterior-Stabilizing Cemented Femoral Component are substantially equivalent to other devices legally marketed in the United States, most notably Exactech's predicate Optetrak® femoral components.
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Image /page/4/Picture/1 description: The image shows a circular logo with text around the perimeter and a stylized bird-like symbol in the center. The text is partially obscured but appears to read "HEALTH & HUMAN SERVICES - USA". The bird-like symbol consists of three curved lines that resemble wings or feathers, creating a sense of movement or flight. The logo is in black and white and has a slightly distressed or aged appearance.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
SEP 2 3 2003
Mr. Martin Sprunck Regulatory Representative Exactech, Inc. 2320 N.W. 66th Court Gainesville, FL 32653
Re: K032606
Trade/Device Name: OPTETRAK® Total Knee System Regulation Number: 21 CFR 888.3560 Regulation Name: Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis Regulatory Class: II Product Code: JWH Dated: August 20, 2003 Received: August 25, 2003
Dear Mr. Sprunck:
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.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), 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 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 lisuing (21 CFR Part 807); labeling (21 CFR Part 801); 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.
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This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (301) 594-4659. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). 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) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely vours.
Sincerely yours,
Mark A. Melkerson
'elia 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
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Image /page/6/Picture/0 description: The image shows a handwritten alphanumeric string. The string is 'K032606'. The characters are written in a simple, slightly slanted style, with each character clearly distinguishable.
## Exactech® Optetrak® Total Knee System Line Extension - Optetrak® Femoral Components Special 510(k)
#### Indications for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
510(k) Number:
032606
Device Name:
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.
#### 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.
CAUTION: In the USA, for cemented use only.
Mark A. Mellem
Division of General, I morative and Neurological Devi.es
510(k) Numl er
Please do not write below this line - use another page if needed.
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use
or
Over the Counter Use
Section 3 Page 1 of 1
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.