MAUDE Adverse Event Report: Stryker Orthopaedics-Mahwah TRIATHLON CR X3 TIBIAL INSERT; Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer

Catalog Number	5530-G-209-E
Medical Device Problem Codes	Unstable (1667); Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Joint Laxity (4526)
Date of Event	04/21/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Review of the device history records indicate that devices were manufactured and accepted into final stock with no reported discrepancies.There has been similar event(s) for the lot referenced.If additional information is received, it will be provided in a supplemental report upon completion of the investigation.
Event or Problem Description
The following information was provided: left-knee-revision.Pt.Presented with "global instability" following a tka.Surgeon suspected a failure of the pt's pcl which was spared/retained during her tka in 2022.Surgeon opted to swap the x3 insert from a cr 2 x 9 mm to a cs 2 x 11 mm.Sufficient stability was reestablished.No complaints filed against the components themselves, no further info.

• Brand Name: TRIATHLON CR X3 TIBIAL INSERT
• Common Device Name: Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer
• Manufacturer (Section D): Stryker Orthopaedics-Mahwah; 325 corporate drive; mahwah NJ 07430
• Manufacturer (Section G): Stryker Orthopaedics-Mahwah; 325 corporate drive; mahwah NJ 07430
• Manufacturer Contact: marisol santiago ; 325 corporate drive; mahwah, NJ 07430 ; +1(201)831-5000
• MDR Report Key: 25202372
• Report Number: 0002249697-2026-00404
• Device Sequence Number: 18650897
• Product Code: JWH
• UDI-Device Identifier: 07613327382990
• UDI-Public: 07613327382990
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K242831
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2022
• Device Explanted Year: 2026
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 09/23/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Catalogue Number: 5530-G-209-E
• Device Lot Number: XN590R
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 04/21/2026
• Supplement Date Received by Manufacturer: 08/27/2026
• Initial Report FDA Received Date: 05/18/2026
• Supplement Report FDA Received Date: 09/23/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 11/02/2021
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Age: 65 YR
• Patient Sex: Female