Howmedica Triathlon Baseplate Size 3 Recall: Confusing Labeling Risk
Howmedica recalls Triathlon Universal Baseplate Size 3 (part 5521-B-300) due to labeling errors causing confusion with Size 4 models. Affected units may have incorrect lot numbers.
Lower-risk recall
Stryker has identified that Triathlon Universal Baseplate Size 3 (lot UZD9IB), is contained in packaging labeled as Triathlon Universal Baseplate Size 4 (lot TYX7OB), and Triathlon Universal Baseplate Size 4 (lot TYX7OB), is contained in packaging labeled as Triathlon Universal Baseplate Size 3, (lot UZD9IB).
Contact the company
What happened, in plain English
Howmedica is recalling Triathlon Universal Baseplate Size 3 (part number 5521-B-300) because it's mistakenly labeled as Size 4 in some packaging. This confusion could lead to using the wrong size plate, which might cause improper installation or injury during surgery. Read more at govinfonow.com/recall/49148-howmedica-triathlon-baseplate-size-3-recall-confusing-labeling-risk.
Source Summary by GovInfoNow · govinfonow.com/recall/49148-howmedica-triathlon-baseplate-size-3-recall-confusing-labeling-risk · Updated August 10, 2026 · FDA enforcement record: FDA #Z-2461-2026
Cite this page
“Howmedica Triathlon Baseplate Size 3 Recall: Confusing Labeling Risk.” GovInfoNow, updated August 10, 2026. https://govinfonow.com/recall/49148-howmedica-triathlon-baseplate-size-3-recall-confusing-labeling-risk. Based on FDA recall #Z-2461-2026 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-2461-2026%22&limit=1).
Why it’s dangerous
The baseplate is labeled incorrectly in packaging, causing confusion between Size 3 and Size 4 models. Using the wrong size could lead to improper installation during surgery, potentially causing injury to patients.
Who’s affected
Orthopedic surgeons and medical staff who use these baseplates for surgical procedures. Those who have the specific lot number UZD9IB are most at risk.
How to tell if you have this one
Check for part number 5521-B-300 and lot number UZD9IB on the packaging. The product may be labeled as Triathlon Universal Baseplate Size 4 but contains the Size 3 model.
- Brand
Howmedica- Product
TRI TS BASEPLATE SIZE 3. Part Number: 5521-B-300- Category
Medical device
All 2 products in this recall
FDA lists each product line separately under one recall event. Check your product description, lot or code numbers against each row. Every row shares the hazard and remedy on this page.
- Classification
Class II- Status
Ongoing- Distribution
US Nationwide distribution in the states of AZ, CA, GA, MI, NC, NJ, NY, WV.
| Recall number | Product, codes & lots |
|---|---|
| Z-2461-2026 | TRI TS BASEPLATE SIZE 3. Part Number: 5521-B-300.; Part Number: 5521-B-300. UDI: (01)07613327026313(17)260921(10) UZD9IB. Lot Number: UZD9IB. |
| Z-2462-2026 | TRI TS BASEPLATE SIZE 4. Part Number: 5521-B-400.; Part Number: 5521-B-400. UDI: (01)07613327026061(17)260921(10) TYX7OB. Lot Number: TYX7OB. |
What to do — step by step
Check Packaging Labels
Look for part number 5521-B-300 and lot number UZD9IB on the packaging to confirm if the product is affected.
Where it went and when
Where it was distributed
Distributed nationwide; the notice names 8 states.
FDA distribution: “US Nationwide distribution in the states of AZ, CA, GA, MI, NC, NJ, NY, WV.” States read from FDA’s own wording; “not listed” means the notice does not name it.
Named in the notice: Arizona, California, Georgia, Michigan, New Jersey, New York, North Carolina, West Virginia.
Recall timeline
FDA published this recall 36 days after the firm started it.
- Firm started the recall
- FDA classified it Class II
- Published in FDA’s Enforcement Report
Dates from the agency record only; steps without a date are left out.
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Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: FDA Recall #Z-2461-2026 (May 19, 2026) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-2461-2026 to see it in context.
- Plain-language summary written by qwen3:4b on August 10, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.