MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH X3 TRIATHLON CS INSERT NO 7 9MM; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Catalog Number	5531-G-709-E
Medical Device Problem Code	Insufficient Device Problem Information (3190)
Health Effect - Clinical Code	Loss of Range of Motion (2032)
Date of Event	10/02/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Review of the device history records indicate devices were manufactured and accepted into final stock with no reported discrepancies.There have been no other events for the lot referenced.
Event or Problem Description
This report is for revision on (b)(6) 2025.In providing information for a revision of the patient's left knee on (b)(6) 2025, rep provided a usage sheet for a revision of the patient's left knee on (b)(6) 2025.Rep reported revision was due to limited rom.The surgeon originally planned to convert the knee to triathlon hinge, but opted to convert to a ts knee with stems and augments instead.Rep confirmed that no further information will be released by the hospital or surgeon.

• Brand Name: X3 TRIATHLON CS INSERT NO 7 9MM
• Common Device Name: PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO
• 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: brad curtis ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 23403217
• Report Number: 0002249697-2025-01249
• Device Sequence Number: 9872081
• Product Code: MBH
• UDI-Device Identifier: 07613327337464
• UDI-Public: 07613327337464
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K172634
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2023
• Device Explanted Year: 2025
• Reporter Type: Manufacturer
• Report Source: Other,Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 10/28/2025

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: 5531-G-709-E
• Device Lot Number: XV2XX7
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 10/02/2025
• Initial Report FDA Received Date: 10/28/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 08/10/2023
• 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: Hospitalization; Required Intervention
• Patient Age: 59 YR
• Patient Sex: Male
• Patient Weight: 135 KG