MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRIATHLON MB PATELLA PA A35; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Model Number 5554-L-350

Device Problem Detachment of Device or Device Component (2907)

Patient Problem Ambulation Difficulties (2544)

Event Date 03/28/2023

Event Type  Injury  

Manufacturer Narrative

An event regarding disassociation involving a triathlon patella 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 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 primary 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.H3 other text : device not returned.

Event Description

It was reported that the patient's right knee was revised due to effusion and mal-tracking of the patella.Intra-operatively, it was observed that the poly portion of the metal-backed patella had completely separated from the metal.The patella was revised and a debridement performed.While performing the revision, the surgeon decided to exchange the insert (no allegations against the revised insert).

• Brand Name: TRIATHLON MB PATELLA PA A35
• Type of Device: 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: brad curtis ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 16804111
• MDR Text Key: 313904801
• Report Number: 0002249697-2023-00413
• Device Sequence Number: 1
• Product Code: MBH
• UDI-Device Identifier: 07613327049909
• UDI-Public: 07613327049909
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K141056
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Health Professional
• Reporter Occupation: Physician
• Type of Report: Initial
• Report Date: 04/24/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 04/24/2023
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Health Professional
• Device Expiration Date: 01/31/2022
• Device Model Number: 5554-L-350
• Device Catalogue Number: 5554L350
• Device Lot Number: BJ67E
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 03/28/2023
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 01/25/2017
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention; Hospitalization
• Patient Age: 48 YR
• Patient Sex: Male
• Patient Weight: 153 KG