MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRIATHLON REVISION INSERT X3 SZ2 9MM; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Catalog Number	5612-X-209
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Unspecified Infection (1930)
Date of Event	06/17/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
Performed an i&d with tibial insert exchange due to infection on a left knee.
Additional Manufacturer Narrative
The following devices were also listed in this report: device name: sterile fluted headless 1/8 pin x 3.5 in, 7650-2038a, sc38664a8.Triathlon cemented stem-9mm x 50mm, 5560-s-109, 1187602k.Tri ts femur sz2 left, 5512-f-201, l9y4b.Tri cemented stem 9mmx100mm, 5560-s-209, 1187605k.Triathlon femoral distal augment 15mm - size 2 left, 5542-a-201, ssd3u.Triath fem distal aug 5mm - size 2 left, 5540-a-201, sae3b.Triathlon sym cone aug sz b, 5549-a-120, xnmg1.Triathlon revision tibaug sz2 rm ll 5mm, 5612-a-250, 572n9p.Triathlon revision tibaug sz2 lm rl 5mm, 5612-a-251, 350852.Triathlon hinge b/plate size 2, 5612b200, t2e2r.It cannot be determined which, if any of these devices may have caused or contributed to the patient's experience.Reported event: an event regarding infection involving a triathlon insert was reported.The event was not confirmed.Method & results: -product evaluation and results: material analysis, visual, functional and dimensional inspections could not be performed as the device was not returned.-clinician review: no medical records were received for review with a clinical consultant.-product history review: review of the device history records indicate devices were manufactured and accepted into final stock with no relevant reported discrepancies.-complaint history review: there have been no other similar events for the lot or sterile lot referenced.Conclusions: it was reported that the patient was revised due to infection.All stryker products sold as sterile are validated to a minimum sterility assurance level sal of 10^-6 in accordance with applicable iso standards.The exact cause of the event could not be determined because insufficient information was provided.Further information such as pathology reports, pre- and post-operative x-rays and the revision operative report as well as patient history and follow-up notes are needed to complete the investigation for determining root cause.No further investigation for this event is possible at this time.If devices and/or additional information become available to indicate further evaluation is warranted, this record will be reopened.

• Brand Name: TRIATHLON REVISION INSERT X3 SZ2 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: juana hiciano ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 22459256
• Report Number: 0002249697-2025-00681
• Device Sequence Number: 15523881
• Product Code: MBH
• UDI-Device Identifier: 07613327559682
• UDI-Public: 07613327559682
• Combination Product (Y/N): N
• Initial Reporter State: RI
• Initial Reporter Country: US
• PMA/510(K) Number: K230416
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Device Explanted Year: 2025
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 07/09/2025

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: 5612-X-209
• Device Lot Number: 1V5X67
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 06/17/2025
• Initial Report FDA Received Date: 07/09/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 10/12/2023
• 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: Required Intervention; Hospitalization
• Patient Age: 70 YR
• Patient Sex: Female