Brand Name: USTAR II Knee System Product Name: Hinge Box Trial, L, #1-6 and Hinge Box Trial, R, ...

FDA Device Recall #Z-2884-2026 - Class II, May 20, 2026

Recall Summary

Recall Number Z-2884-2026
Classification Class II - Moderate risk
Date Initiated May 20, 2026
Status Ongoing
Voluntary Voluntary: Firm initiated

Recalling Firm

Firm United Orthopedic Corp.
Location Kaohsiung
Product Type Devices
Quantity 2

Product Description

Brand Name: USTAR II Knee System Product Name: Hinge Box Trial, L, #1-6 and Hinge Box Trial, R, #1-6 Model/Catalog Number: 9325-5711 thru 9325-5716 and 9325-5721 thru 9325-5726 Software Version: N/A Product Description: Knee femur prosthesis trial, reusable Component: No, N/A

Reason for Recall

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

Distribution Pattern

US Nationwide distribution in the states of Texas and Michigan.

Lot / Code Information

Product Number; UDI-DI Code; Lot Code: Product number 9325-5711; UDI-DI 04719886907032; Lot number 25FB41 Product number 9325-5712; UDI-DI 04719886907049; Lot number 25FB42 Product number 9325-5713; UDI-DI 04719886907056; Lot number 25FB43 Product number 9325-5714; UDI-DI 04719886907063; Lot number 25FB44 Product number 9325-5715; UDI-DI 04719886907070; Lot number 25FB45 Product number 9325-5716; UDI-DI 04719886907087; Lot number 25FB46 Product number 9325-5721; UDI-DI 04719886907094; Lot number 25FB35 Product number 9325-5722; UDI-DI 04719886907100; Lot number 25FB36 Product number 9325-5723; UDI-DI 04719886907117; Lot number 25FB37 Product number 9325-5724; UDI-DI 04719886907124; Lot number 25FB38 Product number 9325-5725; UDI-DI 04719886907131; Lot number 25FB39 Product number 9325-5726; UDI-DI 04719886907148; Lot number 25FB40

Other Recalls from United Orthopedic Corp.

Recall # Classification Product Date
Z-2885-2026 Class II Brand Name: U2 Total Knee System Product Name:... May 20, 2026
Z-2883-2026 Class II Brand Name: U2 Total Knee System Product Name:... May 20, 2026
Z-2886-2026 Class II Brand Name: U2 Total Knee System Product Name:... May 20, 2026
Z-2897-2026 Class II Brand Name: U2 Total Knee System Product Name:... Mar 19, 2026
Z-2898-2026 Class II Brand Name: U2 Total Knee System Product Name:... Mar 19, 2026

Frequently Asked Questions

Contact your healthcare provider and the device manufacturer immediately. Check whether your specific model number and lot number are included in the recall scope. For external devices, stop using the affected product and arrange a replacement. For implanted devices, do not panic, removal is typically not required unless the risk assessment clearly indicates it. Your physician will guide you based on your individual clinical situation and the FDA's recommended actions. Report any adverse effects you may have experienced to FDA MedWatch at 1-800-FDA-1088.

Class I recalls indicate a reasonable probability of serious adverse health consequences or death from the defect. Class II recalls involve products that may cause temporary or medically reversible adverse health consequences, or where serious consequences are remote. Class III recalls cover products not likely to cause any adverse health consequences, typically involving technical regulatory violations. The classification guides urgency, Class I recalls require immediate action, while Class III may simply involve returning a product or acknowledging a labeling change. Always read the specific recall notice for recommended patient actions.

Report problems with medical devices to the FDA through MedWatch at 1-800-FDA-1088 or online at FDA.gov/safety/medwatch. Healthcare facilities are required by law to report device-related serious injuries and deaths. Patients and consumers can also report voluntarily. Include the device name, manufacturer, model number, and a description of the problem and any patient outcome. Reports from patients and clinicians help the FDA identify emerging safety signals and may trigger investigations that lead to recalls of dangerous devices.

What Should You Do?

Stop using this device if you are affected by this recall. Contact your healthcare provider and the manufacturer immediately for guidance. Report adverse events to FDA MedWatch.