MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRIATHLON P/A CR BEADED #5R; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Catalog Number	5517F502
Medical Device Problem Code	Unstable (1667)
Health Effect - Clinical Code	Joint Laxity (4526)
Date of Event	10/03/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
Right-knee revision, patient presented with knee-instability.Tibia baseplate and patellar components were left in-situ.No complaints filed against the components themselves, no further info available.
Additional Manufacturer Narrative
It was noted that the device is not available for evaluation.Should additional information become available, it will be provided in a supplemental report upon completion of the investigation.Review of the device history records indicate devices were manufactured and accepted into final stock with no relevant reported discrepancies.There have been no other similar events for the lot referenced.The following device were also listed in this report: device name# triathlon cr x3 tibial insert; cat # 5530-g-613-e; lot # m95xp9.It cannot be determined which, if any of these device may have caused or contributed to the patient's experience.

• Brand Name: TRIATHLON P/A CR BEADED #5R
• 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-LIMERICK; raheen business park; limerick NA ; EI NA
• Manufacturer Contact: arokiya raj ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 23417719
• Report Number: 0002249697-2025-01270
• Device Sequence Number: 18413316
• Product Code: MBH
• UDI-Device Identifier: 07613327040968
• UDI-Public: 07613327040968
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K200782
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Device Explanted Year: 2025
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 10/29/2025

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: 5517F502
• Device Lot Number: 344JU
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 10/03/2025
• Initial Report FDA Received Date: 10/29/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 05/05/2024
• 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: 64 YR
• Patient Sex: Male