MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRI HINGE TIB BEARING SZ 5-6; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Catalog Number	56120005
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Unspecified Infection (1930)
Date of Event	08/10/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The following devices were also listed in this report: device name catalog# lot# triathlon bushingsaxle stdassemblypack, 5612-3-000, 2p257v.Triathlon hinge bumper neutral, 5612-4-000, errar7a1.Triathlon hinge b/plate size 7, 5612b700, ydh9s.Triathlon hinge femur 6r, 5612f602, t436l.Triathlon asymmetric x3 patella, 5551-g-381-e, jm7h.Triathlon sym cone aug sz b, 5549-a-120, 1wau1.Triathlon stem extender 25mm , 5571-s-025 , 5j02y9.Triathlon cemented stem-15mm x 50mm, 560-s-115, 1663510k.Tri cemented stem 12mmx50mm, 5560-s-112, 1201200k.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 tibial component 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 reported lot and sterile lot.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.
Event or Problem Description
It was reported that the patient's right knee was revised due to infection.The hinge bushings and axle, bearing component, and bumper were revised and a washout was performed.Rep confirmed that no further information will be released by the hospital or surgeon.

• Brand Name: TRI HINGE TIB BEARING SZ 5-6
• 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: juana hiciano ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 22979306
• Report Number: 0002249697-2025-00952
• Device Sequence Number: 21189680
• Product Code: MBH
• UDI-Device Identifier: 07613327547023
• UDI-Public: 07613327547023
• Combination Product (Y/N): N
• Initial Reporter State: FL
• 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): 09/05/2025

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: 56120005
• Device Lot Number: G8674290B
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 08/10/2025
• Initial Report FDA Received Date: 09/05/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/05/2025
• 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: 26 YR
• Patient Sex: Male
• Patient Weight: 89 KG