Class 2 Device Recall U2 Total Knee System

• Date Initiated by Firm: May 20, 2026
• Date Posted: August 05, 2026
• Recall Status: Open, Classified
• Recall Number: Z-2886-2026
• Recall Event ID: 99026
• Product Classification: Orthopedic manual surgical instrument - Product Code LXH
• Product: 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
• Code Information: 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
• FEI Number: 1000395711
• Recalling Firm/ Manufacturer: United Orthopedic Corp.; No. 16 Luke 1st Rd.; Luzhu Dist.; Kaohsiung Taiwan
• For Additional Information Contact: Mr. Calvin Lin; +886-22-9294567
• Manufacturer Reason for Recall: Due to an incomplete process of the component screw by a subcontractor which prevents the properly assembling of stem trail.
• FDA Determined Cause: Process design
• Action: On 03/11/2026, the firm emailed an "URGENT: MEDICAL DEVICE RECALL" Letter to customers informing them that due the fact that the PSA Box Trial cannot be properly assembled with the Hinge Trial in the affected devices because of incomplete processing of the screw components, which may result in interference during assembly with the corresponding device. On 05/20/2026, the firm emailed an updated "URGENT: MEDCIAL DEVICE RECALL" Letter Customers are instructed: 1. Examine your inventory immediately to locate the affected product whose quantities and lot numbers are listed above. Please note the product may have already been returned. 2. Cease all use of these devices immediately and quarantine all affected devices in your territory for immediate return. 3. Customer Service will be contacting you regarding replacements. If you still have the product, you are requested to immediately return the affected product using the prepaid airbills on RMA XXXX . a. Write the RMA number on the outside of the box clearly and legibly. b. Ship recalled product via Fed Ex standard overnight to: UOC USA INC. Attention: RMA# XXXX 16601 Hale Ave. Irvine, CA 92606 (Attached Shipping Label) 4. Additionally, if your firm has further distributed the recall product, please provide that customer with a copy of this recall notification and assist them with the return of the product. 5. Complete and return the following page according to the instructions. For Question - contact UOC Sr. Director of Sales Operations at 949.328.3366.
• Quantity in Commerce: 2
• Distribution: US Nationwide distribution in the states of Texas and Michigan.
• Total Product Life Cycle: TPLC Device Report

¹ A record in this database is created when a firm initiates a correction or removal action. The record is updated if the FDA identifies a violation and classifies the action as a recall, and it is updated for a final time when the recall is terminated. Learn more about medical device recalls.
² Per FDA policy, recall cause determinations are subject to modification up to the point of termination of the recall.
³ The manufacturer has initiated the recall and not all products have been corrected or removed. This record will be updated as the status changes.