MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRI TS BASEPLATE SIZE 3; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Catalog Number	5521-B-300
Medical Device Problem Codes	Failure to Osseointegrate (1863); Malposition of Device (2616)
Health Effect - Clinical Codes	Ambulation or Postural Difficulties (2544); Inadequate Osseointegration (2646)
Date of Event	03/25/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Reported event: an event regarding loosening & malposition involving a triathlon baseplate 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 referenced.Conclusions: the exact cause of the event could not be determined because insufficient information was provided.Additional information including operative reports, revision report, progress notes, x-rays and return of the device are needed to fully investigate the event.If further information becomes available or the product is returned, this investigation will be re-opened.
Event or Problem Description
As reported: "rev ltka- for loose tibia and mal alignment." a ps knee was converted to a ts knee with stems and augments.Rep confirmed that no further information will be released by the hospital or surgeon.

• Brand Name: TRI TS BASEPLATE SIZE 3
• 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: 21875879
• Report Number: 0002249697-2025-00424
• Device Sequence Number: 12947073
• Product Code: MBH
• UDI-Device Identifier: 07613327026313
• UDI-Public: 07613327026313
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K141056
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2022
• Device Explanted Year: 2025
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 04/21/2025

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 Expiration Date: 02/28/2026
• Device Catalogue Number: 5521-B-300
• Device Lot Number: HZ99VB
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 03/25/2025
• Initial Report FDA Received Date: 04/21/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/24/2021
• 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: Hospitalization; Required Intervention
• Patient Age: 66 YR
• Patient Sex: Female