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

Catalog Number 5532-G-613

Device Problems Difficult to Insert (1316); Defective Device (2588)

Patient Problem No Consequences Or Impact To Patient (2199)

Event Date 12/06/2018

Event Type  malfunction  

Manufacturer Narrative

Review of the product history records indicate devices were manufactured and accepted into final stock with no relevant reported discrepancies.There have been no other similar events for the lot referenced.A supplemental report will be submitted upon completion of the investigation.

Event Description

During a primary left tka while inserting the polyethylene insert it was reported to me that ¿the locking wire was sticking out after fully seating the insert¿.A new insert was opened and inserted successfully.Update 10/december/2018: surgical delay.As reported in adverse consequences details: "the procedure was prolonged for an extra 2 minutes while removing the affected insert and implanting a new one.".

Manufacturer Narrative

Reported event: an event regarding seating/locking issue involving a triathlon insert was reported.The event was confirmed through evaluation of the returned device.Method & results: -device evaluation and results: one insert with catalog number 5532g613 and lot code 82208317 and detached locking wire was returned for evaluation.Damage consistent with implantation and subsequent explantation is visible on the insert.The locking wire appears bent.Review of the returned device by a material analysis engineer revealed: damage observed on the distal surface on the insert.This damage is consistent with contact against a hard object and attempted implantation.Based on the given information, no identifiable materials or manufacturing discrepancies were observed on the surfaces examined.-medical records received and evaluation: no medical records were received for review with a clinical consultant.-device history review: indicated all devices were manufactured and accepted into final stock with no reported discrepancies.-complaint history review: there have been no other similar events for the lot referenced.Conclusion: the insert was returned for review.Visual inspection noted damage consistent with implantation and subsequent explantation is visible on the insert.The locking wire appears bent.Review of the returned device by a material analysis engineer revealed: damage observed on the distal surface on the insert.This damage is consistent with contact against a hard object and attempted implantation.Based on the given information, no identifiable materials or manufacturing discrepancies were observed on the surfaces examined.While it can be confirmed that a seating issue did take place through return of the component, the root cause cannot be determined as insufficient information was provided.Further information such as operative reports and images of the device taken when the alleged event was identified is required to complete the investigation.No further investigation is required at this time.If additional information becomes available to indicate further evaluation is warranted, this record will be reopened.

Event Description

During a primary left tka while inserting the polyethylene insert it was reported to me that ¿the locking wire was sticking out after fully seating the insert¿.A new insert was opened and inserted successfully.Update (b)(6) 2018: surgical delay.As reported in adverse consequences details: "the procedure was prolonged for an extra 2 minutes while removing the affected insert and implanting a new one.".

• Brand Name: TRIATHLON PS X3 TIBIAL INSERT
• Type of Device: PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO
• Manufacturer (Section D): STRYKER ORTHOPAEDICS-MAHWAH; 325 corporate drive; mahwah NJ 07430
• MDR Report Key: 8214681
• MDR Text Key: 132544169
• Report Number: 0002249697-2019-00022
• Device Sequence Number: 1
• Product Code: MBH
• UDI-Device Identifier: 07613327050868
• UDI-Public: 07613327050868
• Combination Product (y/n): N
• PMA/PMN Number: K141056
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: health professional,other
• Type of Report: Initial,Followup
• Report Date: 03/12/2019

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 01/03/2019
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Expiration Date: 04/30/2023
• Device Catalogue Number: 5532-G-613
• Device Lot Number: 82208317C
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 12/14/2018
• Date Manufacturer Received: 02/12/2019
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Other
• Patient Age: 58 YR