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Lower risk Medical device recall · FDA · Published August 27, 2021

United Orthopedics USTAR II Knee System: Concentricity Failure Risk

United Orthopedics recalls USTAR II Knee System Segment Part (Catalog #2915-1025) due to concentricity and fatigue testing failures. Affected units may not meet safety standards.

🇺🇸 FDA recall #Z-0110-2022Medical deviceUnited Orthopedics ›
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Recalling firmUoc Usa Inc15251 Alton Parkway Ste 100 · Irvine, CA 92618
✎ GovInfoNow plain-language explainer

United Orthopedics is recalling a specific knee system segment part because it doesn't meet safety standards for concentricity and fatigue testing. This could lead to improper function or failure during use. Read more at govinfonow.com/recall/61883-united-orthopedics-ustar-ii-knee-system-concentricity-failure-risk.

Source Summary by GovInfoNow · govinfonow.com/recall/61883-united-orthopedics-ustar-ii-knee-system-concentricity-failure-risk · Updated August 19, 2026 · FDA enforcement record: FDA #Z-0110-2022

Cite this page

“United Orthopedics USTAR II Knee System: Concentricity Failure Risk.” GovInfoNow, updated August 19, 2026. https://govinfonow.com/recall/61883-united-orthopedics-ustar-ii-knee-system-concentricity-failure-risk. Based on FDA recall #Z-0110-2022 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-0110-2022%22&limit=1).

Uoc Usa Inc recalled United Orthopedics USTAR II Knee System Segment Part, RHS, 25 mm Length, Catalog # 2915-1025 due to failing dynamic fatigue testing requirements, the FDA said on Aug. 27, 2021.

How to tell if you have it

  • Brand: United Orthopedics
  • Product: USTAR II Knee System Segment Part, RHS, 25 mm Length
  • Catalog #: 2915-1025
  • UDI Code: 04719872148197
  • Lot Code: 19E272H
  • Quantity: 3 devices
  • Distribution: U.S. Nationwide (CA, CO, NV)

The hazard

The product did not meet specifications for concentricity and failed to meet requirements of dynamic fatigue testing.

Context

GovInfoNow's records show United Orthopedics has faced other recent recalls, including the USTAR II Knee System Trial Hinge Box recall on May 20, 2026, and two U2 Total Knee System recalls on the same date. Other recent recalls of similar products include the U2 Total Knee System Femoral Valgus Adaptor Recall (May 20, 2026).

How to tell if you have this one

Check for the catalog number 2915-1025 on the product label. The UDI code is 04719872148197 and lot code 19E272H. This part was sold with the USTAR II Knee System.

  • Brand
    United Orthopedics
  • Category
    Medical device
Based on the official FDA remedy

What to do — step by step

  1. Check Product Label

    Look for the catalog number 2915-1025 on the product label.

Where it went and when

Where it was distributed

Distributed nationwide; the notice names 3 states.

Alaska: nationwideAKMaine: nationwideMEVermont: nationwideVTNew Hampshire: nationwideNHWashington: nationwideWAIdaho: nationwideIDMontana: nationwideMTNorth Dakota: nationwideNDMinnesota: nationwideMNIllinois: nationwideILWisconsin: nationwideWIMichigan: nationwideMINew York: nationwideNYRhode Island: nationwideRIMassachusetts: nationwideMAOregon: nationwideORNevada: named in the noticeNVWyoming: nationwideWYSouth Dakota: nationwideSDIowa: nationwideIAIndiana: nationwideINOhio: nationwideOHPennsylvania: nationwidePANew Jersey: nationwideNJConnecticut: nationwideCTCalifornia: named in the noticeCAUtah: nationwideUTColorado: named in the noticeCONebraska: nationwideNEMissouri: nationwideMOKentucky: nationwideKYWest Virginia: nationwideWVVirginia: nationwideVAMaryland: nationwideMDDelaware: nationwideDEArizona: nationwideAZNew Mexico: nationwideNMKansas: nationwideKSArkansas: nationwideARTennessee: nationwideTNNorth Carolina: nationwideNCSouth Carolina: nationwideSCDistrict of Columbia: nationwideDCOklahoma: nationwideOKLouisiana: nationwideLAMississippi: nationwideMSAlabama: nationwideALGeorgia: nationwideGAHawaii: nationwideHITexas: nationwideTXFlorida: nationwideFL

FDA distribution: “U.S. Nationwide: CA, CO, and NV No O.U.S.” States read from FDA’s own wording; “not listed” means the notice does not name it.

Named in the notice: California, Colorado, Nevada.

Recall timeline

FDA terminated this recall 17 months after the firm started it.

1. Firm started the recall: Aug 27, 202112. FDA classified it Class II: Oct 13, 202123. Published in FDA’s Enforcement Report: Oct 20, 202134. FDA terminated the recall: Jan 20, 2023420212023
  1. Firm started the recall
  2. FDA classified it Class II
  3. Published in FDA’s Enforcement Report
  4. FDA terminated the recall

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-0110-2022 (August 27, 2021) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-0110-2022 to see it in context.
  • Plain-language summary written by qwen3:4b on August 19, 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.
GovInfoNow is an independent guide. We are not FDA or any government agency. Always confirm details with the official recall.Data: CPSC · FDA · NHTSA · USDA