MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRIDENTII TRITANIUM MULTI 50D; PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED

Catalog Number	709-04-50D
Medical Device Problem Codes	Loss of Osseointegration (2408); Osseointegration Problem (3003)
Health Effect - Clinical Code	Inadequate Osseointegration (2646)
Date of Event	07/11/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
The primary surgery (tha) was performed on (b)(6) 2025.The revision surgery was performed on (b)(6) 2025 as post-operative cup dislocation and screw breakage was confirmed on (b)(6) 2025.The trident ii cup, the insert, and two screws were removed and they were replaced with other company's cup.The replacement cup was implanted while the tip of the broken screw was left in place with concern that removing the screw would cause bone loss and affect the alignment of the cup, and that the screw tip would not interfere with the screw of the replacement cup.
Additional Manufacturer Narrative
Review of the device history records indicate devices were manufactured and accepted into final stock with no relevant reported discrepancies.There have been no similar events for the lot referenced.An evaluation of the device cannot be performed as the device was not returned to the manufacturer.Should additional information become available it will be reported in a supplemental report upon completion of the investigation.
Additional Manufacturer Narrative
Reported event: an event regarding loosening involving a trident ii shell 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 product history records indicate the reported device was manufactured with no reported relevant 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.Further information such as return of the device, 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
No new information.

• Brand Name: TRIDENTII TRITANIUM MULTI 50D
• Common Device Name: PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED
• Manufacturer (Section D): STRYKER ORTHOPAEDICS-MAHWAH; 325 corporate drive; mahwah NJ 07430
• Manufacturer (Section G): STRYKER ORTHOPAEDICS-CORK; ida industrial estate; carrigtwohill NA ; EI NA
• Manufacturer Contact: anna ryan ; raheen business park; limerick, NJ NA ; EI NA ; 2018315000
• MDR Report Key: 22780526
• Report Number: 0002249697-2025-00860
• Device Sequence Number: 9906771
• Product Code: LPH
• UDI-Device Identifier: 07613327343953
• UDI-Public: 07613327343953
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K171768
• 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,Followup
• Report Date (Section B): 12/18/2025

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: 709-04-50D
• Device Lot Number: 29253251A
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 07/14/2025
• Supplement Date Received by Manufacturer: 11/21/2025
• Initial Report FDA Received Date: 08/12/2025
• Supplement Report FDA Received Date: 12/18/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/20/2025
• 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: Hospitalization; Required Intervention
• Patient Sex: Unknown