Class II U.S. Food and Drug Administration

United Orthopedic Corp. Brand Name: U2 Total Knee System Product Name: Femoral valgus recall: Due to an incomplete process of the component screw by a subcontractor

Recall published 2 months ago

Due to an incomplete process of the component screw by a subcontractor which prevents the properly assembling of stem trail.

The hazard: Device safety concern

A device recall was filed for this product. For anything implanted or relied on daily, the clinician comes before the paperwork.

What the notice says: Due to an incomplete process of the component screw by a subcontractor which prevents the properly assembling of stem trail.

Why it matters: The FDA recorded an enforcement action against this device. Most device recalls are corrections rather than removals, so the device often stays in use while the manufacturer issues a fix.

Recall details

Recall number
Z-2886-2026
Published
August 12, 2026
Risk level
Class II
Status
Ongoing
Issued by
U.S. Food and Drug Administration
Brand
United Orthopedic Corp.
Product type
Medical devices
Units affected
2
Distribution
Nationwide
Made in
Taiwan
Lot / code info
Product Number; UDI-DI Code; Lot Code: Product number 9323-5335; UDI-DI 04719886906554; Lot number 25FB64 Product number 9323-5337; UDI-DI 04719886906578; Lot number 25FB48 Product number 9323-5339; UDI-DI 04719886906592; Lot number 25FB52 Product number 9323-5336; UDI-DI 04719886906561; Lot number 25FB65 Product number 9323-5338; UDI-DI 04719886906585; Lot number 25FB49 Product number 9323-5340; UDI-DI 04719886906608; Lot number 25FB53
UPC codes
04719886906554, 04719886906578, 04719886906592, 04719886906561, 04719886906585, 04719886906608

Products covered by this recall

Brand Name: U2 Total Knee System Product Name: Femoral valgus offset adaptor, 2mm, 4mm, 6mm, left and Femoral valgus offset adaptor, 2mm, 4mm, 6mm, right Model/Catalog Number: 9323-5335, 9323-5337, 9323-5339 and 9323-5336, 9323-5338, 9323-5340 Software Version: N/A Product Description: Manual Orthopedic Surgical Instrument Component: No

Check your product

The notice names 14 codes you can read straight off the package. Type the one printed on yours and the list below narrows to it.

UPC / barcode

Read the twelve digits under the barcode on the package.

  • 04719886906554
  • 04719886906578
  • 04719886906592
  • 04719886906561
  • 04719886906585
  • 04719886906608

Lot or batch code

Usually ink-stamped near the seam, the cap or the bottom of the pack.

  • 25FB53 — 2

Model or item number

On the rating label, the box or the instruction sheet.

  • 9323-5335
  • 9323-5337
  • 9323-5339
  • 9323-5336
  • 9323
  • 9323-5338
  • 9323-5340

Codes are lifted verbatim from the FDA — Device enforcement notice. A code that is missing here may still be covered — the official notice is the complete list.

What to do about Device

United Orthopedic Corp. — A device recall was filed for this product. For anything implanted or relied on daily, the clinician comes before the paperwork.

  1. Match the model, catalogue, lot and serial numbers on your device against the identifiers on this page.
  2. Report device problems to the FDA through MedWatch.
  3. If the device is implanted or you depend on it daily, speak to your clinician before changing how you use it.
  4. Ask the supplier or clinic that provided it what the remedy is in your case.

Claiming on a recalled device

Device recalls are tracked by serial and lot number, so your claim moves faster if you lead with those.

  • Have the model, catalogue, lot and serial numbers ready before you call — they are on the device label or its box.
  • Ask explicitly whether your unit is in the affected range; many recalls cover only part of a model line.
  • If you need the device daily, ask what interim arrangement they offer while the remedy is carried out.
  • Log the date, the name and the reference number of every call. Device recalls can run for months.

Company contact: United Orthopedic Corp. — No. 16 Luke 1st Rd., Kaohsiung

The official notice

This page summarises a notice published by U.S. Food and Drug Administration. The agency notice is the authoritative version — read it before you act, and treat it as the final word if anything here looks different.

Open the FDA — Device enforcement record U.S. Food and Drug Administration recalls

Questions people ask about this recall

Why was United Orthopedic Corp. medical devices recalled?

Due to an incomplete process of the component screw by a subcontractor which prevents the properly assembling of stem trail. Due to an incomplete process of the component screw by a subcontractor which prevents the properly assembling of stem trail.

How do I know if I have the recalled product?

Match the codes printed on your package against the notice: UPC 04719886906554, 04719886906578, 04719886906592; lot code 25FB53 — 2; model number 9323-5335, 9323-5337, 9323-5339. If the code on your package is not on that list, your unit is outside the recall.

What should I do with it right now?

Match the model, catalogue, lot and serial numbers on your device against the identifiers on this page.

Can I get my money back?

Have the model, catalogue, lot and serial numbers ready before you call — they are on the device label or its box.

Where was the recalled product sold?

It was distributed nationwide.

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