The subject hip stem is a single-use, sterile device intended for use in total hip replacement. It is intended for the reconstruction of the head and neck of the femoral joint. This hip stem is intended for the reconstruction of the proximal femur or revision total hip arthroplasty. This device is intended for use with any currently available Howmedica Osteonics acetabular component and V40™ femoral heads that can be mated with a TMZF® 5° 40' BG trunnion.
Device Story
Accolade® RPS Femoral Stem is a modification of the Accolade® TMZF® hip system; designed for total hip replacement. Device features TMZF® alloy construction with reduced surface area for Commercially Pure Titanium (CP-Ti) plasma spray and PureFix™ HA coatings. Used in OR by orthopedic surgeons for primary or revision hip arthroplasty. Device acts as a femoral component, mating with V40™ femoral heads and Howmedica Osteonics acetabular components. Provides structural reconstruction of proximal femur/femoral joint head and neck. Benefits patients by restoring joint function in cases of degenerative disease or fracture.
Clinical Evidence
No clinical data provided; substantial equivalence is based on design and material similarities to the predicate device.
Technological Characteristics
Materials: TMZF® alloy, Commercially Pure Titanium (CP-Ti) plasma spray, PureFix™ HA coating. Design: Femoral stem for total hip replacement, semi-constrained, uncemented. Connectivity: None (mechanical implant). Sterilization: Sterile, single-use.
Indications for Use
Indicated for cementless primary hip surgery in patients with non-inflammatory degenerative joint disease (osteoarthritis, avascular necrosis, rheumatoid arthritis, functional deformity); treatment of nonunion, femoral neck, and trochanteric fractures of the proximal femur with head involvement; and revision procedures where other treatments have failed.
Regulatory Classification
Identification
A hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis is a device intended to be implanted to replace a hip joint. This device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. The two-part femoral component consists of a femoral stem made of alloys to be fixed in the intramedullary canal of the femur by impaction with or without use of bone cement. The proximal end of the femoral stem is tapered with a surface that ensures positive locking with the spherical ceramic (aluminium oxide, A12 03 ) head of the femoral component. The acetabular component is made of ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene reinforced with nonporous metal alloys, and used with or without bone cement.
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image is a black and white abstract design. The left side of the image is solid black, while the right side is white. There is a transition area between the black and white, where the black gradually fades into white with a speckled effect.
SEP 2 7 2005
Image /page/0/Picture/2 description: The image contains the names of three companies: Stryker, Howmedica, and Osteonics. The text is black and the background is white. The names are stacked vertically, with Stryker at the top, Howmedica in the middle, and Osteonics at the bottom. The font is bold and easy to read.
325 Corporate Drive
Mahwah, NJ USA 07430
# 510(k) Summary of Safety and Effectiveness for the Accolade® RPS Femoral Stem
**Proprietary Name:**
Common Name:
Classification Name and Reference
Regulatory Class:
Device Product Code:
For Information contact:
Accolade® RPS Femoral Stem
Total Hip Joint Replacement Prosthesis
Hip joint, metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prostheses, 21 CFR §888.3353
Class II
87 MEH - prosthesis, hip, semi-constrained, uncemented, metal/polymer, non-porous, calciumphosphate,
87 LZO - prosthesis, hip, semi-constrained, metal/ceramic/polymer, cemented or non-porous, uncemented
Tiffani Rogers Regulatory Affairs Specialist Stryker Orthopaedics 325 Corporate Drive Mahwah, New Jersey 07430 Phone: (201) 831-5412 Fax: (201) 831-6038 E-Mail: Tiffani.Rogers@stryker.com
Date Summary Prepared:
September 13, 2005
## Device Description
The existing Accolade® TMZF® HA Hip System features femoral stems in neutral, press-fit versions consisting of a variety of lengths and two neck angles, 132° and 127°. The subject Accolade® RPS Hip Stem is a modification to the existing hip stems. It features a reduction in the area of Commercially Pure Titanium (CP-Ti) plasma spray and PureFixTM HA coatings on
Image /page/0/Picture/22 description: The image shows a black and white abstract pattern. The pattern is concentrated in the lower left corner and extends upwards. The pattern is made up of small, irregular shapes and lines.
\$\frac{1}{2}\$
{1}------------------------------------------------
I body of the stem. The subject hip stem, like the predicate hip stems, is ured using TMZF® alloy.
### ended Use:
The subject hip stem is a single-use, sterile device intended for use in total hip replacement. It is The subject imp stem is a = = =
intended for the reconstruction of the head and neck of the femoral joint. This hip stem is intended for the reconstruction of the proximal femur or revision total hip arthroplasty. This intended for primary
device is intended for use with any currently available Howmedica Osteonics acetabular device is miches.
component and V40™ femoral heads that can be mated with a TMZF® 5° 40' BG trunnion.
#### Indications:
- Cementless primary hip surgery in cases of non-inflammatory degenerative joint disease . Cententess primary inf varseular necrosis, rheumatoid arthritis, and correction of functional deformity.
- Treatment of nonunion, and femoral neck and trochanteric fractures of the proximal femur . with head involvement that are unmanageable using other techniques.
- Revision procedures where other treatments or devices have failed. .
#### Substantial Equivalence:
The determination of the substantial equivalence of the Accolade® RPS hip stem is based on its similarities in intended use, design and sterilization to the Accolade® TMZF® femoral stem (K994366, cleared March 16, 2000). Predicate device information is located in Appendix E.
4
{2}------------------------------------------------
Image /page/2/Picture/1 description: The image contains the text 'Public Health Service'. The text is in a simple, bold font and is horizontally aligned. The background is plain and white, which makes the text stand out.
Image /page/2/Picture/2 description: The image shows the seal of the Department of Health and Human Services (HHS). The seal features a stylized caduceus, a symbol often associated with medicine and healthcare, consisting of a staff with two snakes coiled around it. The seal is encircled by the words "DEPARTMENT OF HEALTH AND HUMAN SERVICES, USA" in a circular arrangement.
SEP 27 2005
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Ms. Tiffani D. Rogers Regulatory Affairs Specialist Stryker Howmedica Osteonics Corporation 325 Corporate Drive Mahwah, New Jersey 07430
Re: K052542 Trade/Device Name: Accolade® RPS Hip Stem Regulation Number: 21 CFR 888.3353 Regulation Name: Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis Regulatory Class: II Product Code: LZO, MEH Dated: September 14, 2005 Received: September 15, 2005
Dear Ms. Rogers:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your becternined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the encreate) to regions the Medical Device Amendments, or to commerce prior to May 20, 1976, in ecordance with the provisions of the Federal Food, Drug, devices mat have been reculise in assess as as a proval of a premarket approval application (PMA). and Cosmetic Act (71ct) that to not request in the general controls provisions of the Act. The 1 ou may, merelore, mains of the Act include requirements for annual registration, listing of general controls provisions of tractice, 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 If your device is classified (see aberty) als. Existing major regulations affecting your device can may be subject to saterial 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 r rease oe avrised has i termination that your device complies with other requirements of the Act that I DA has made a and regulations administered by other Federal agencies. You must of uny I odelul states and we wents, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set OFF 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.
{3}------------------------------------------------
Page 2- Ms. Tiffani D. Rogers
This letter will allow you to begin marketing your device as described in your Section 510(k) I his letter witi anow you to begin mantening of substantial equivalence of your device to a legally premarket nothleanon. The PDA maing of cacommand of 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 If you desire specific advice for Jour do 110-76-0120. Also, please note the regulation entitled, p Colliact the Office of Complance at (1) + + = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Misoranting by release to premainters in the Act from the Division of Small other general international and Consumer Assistance at its toll-free number (800) 638-2041 or Manufacturers, Internet address http://www.fda.gov/cdrl/industry/support/index.html.
Sincerely yours,
Mark A. Millerson
Mark N. Melkerson Acting Director Division of General, Restorative, and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{4}------------------------------------------------
| 510(k) Number (if known): | |
|---------------------------|------------------------|
| Device Name: | Accolade® RPS Hip Stem |
Indications for Use
Indications
- Cementless primary hip surgery in cases of non-inflammatory
- Cementless primary hip surgery in cases of non-inflammatory degenerative joint disease . including ostcoarthritis, avascular necrosis, rheumatoid arthritis, and correction of functional deformity.
- Treatment of nonunion, and femoral neck and trochanteric fractures of the proximal femur . with head involvement that are unmanageable using other techniques.
- Revision procedures where other treatments or devices have failed. .
Prescription Use X
OR Over-the-Counter Use (Per 21 CFR 801.109)
(PLEASE DO NOT WRITE BELOW THIS LINE – CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Mark D. Milliken
(Division Sign-Off) Division of General, Restorative, and Neurological Devices
510(k) Number
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.