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

Model Number	5532-G-609
Medical Device Problem Codes	Degraded (1153); Fracture (1260); Unstable (1667)
Health Effect - Clinical Code	Ambulation or Postural Difficulties (2544)
Date of Event	02/13/2023
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that the patient's right knee was revised after patient complaint of clunking and instability.Intra-operatively, the post of the ps insert was observed to be sheared off (no possible cause or contributor reported to rep).The insert was revised.Surgeon is requesting investigation results.Rep can provide pictures and possibly additional documentation, otherwise confirmed that no further information will be released by the hospital or surgeon.
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 other similar events for the lot referenced.It was noted that the device is not available for evaluation.Should additional information become available, it will be provided in a supplemental report upon completion of the investigation.
Additional Manufacturer Narrative
Reported event: an event regarding crack/fracture, wear, and instability involving a triathlon insert was reported.The crack/fracture and wear events were confirmed via evaluation of the provided photographs of the device.Instability was not confirmed.Method & results: product evaluation and results: visual inspection: the reported device was not returned however photographs were provided for review.The photographs show damage present on the insert that is consistent with delamination and material loss.The post has completely fractured off.The damage on the articulating surface of the insert is consistent with burnishing, scratching, and third body indentations; which are common damage modes of uhmwpe.The yellow discoloration observed on the tibial insert is consistent with the absorption of synovial fluid by the device.Clinician review: no medical records were received for review with a clinical consultant.Product history review: review of the device history records indicate the 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: it was reported that the patient was revised due to fracture of the insert and joint instability.The reported device was not returned however photographs were provided for review.The photographs show damage present on the insert that is consistent with delamination and material loss.The post has completely fractured off.The damage on the articulating surface of the insert is consistent with burnishing, scratching, and third body indentations; which are common damage modes of uhmwpe.The yellow discoloration observed on the tibial insert is consistent with the absorption of synovial fluid by the device.No further investigation for this event is possible at this time.If additional information becomes 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 after patient complaint of clunking and instability.Intra-operatively, the post of the ps insert was observed to be sheared off (no possible cause or contributor reported to rep).The insert was revised.Surgeon is requesting investigation results.Rep can provide pictures and possibly additional documentation, otherwise confirmed that no further information will be released by the hospital or surgeon.

• Brand Name: TRIATHLON PS X3 TIBIAL INSERT
• Common Device Name: PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, C
• 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: anna ryan ; raheen business park; limerick NA ; EI NA ; 61498200
• MDR Report Key: 16504412
• Report Number: 0002249697-2023-00239
• Device Sequence Number: 15012663
• Product Code: MBH
• UDI-Device Identifier: 07613327050844
• UDI-Public: 07613327050844
• Combination Product (Y/N): N
• Initial Reporter State: WA
• Initial Reporter Country: US
• PMA/510(K) Number: K141056
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Explanted Year: 2023
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 04/18/2023

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: 09/30/2018
• Device Model Number: 5532-G-609
• Device Catalogue Number: 5532-G-609
• Device Lot Number: MMM1N9
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 02/13/2023
• Supplement Date Received by Manufacturer: 03/23/2023
• Initial Report FDA Received Date: 03/08/2023
• Supplement Report FDA Received Date: 04/18/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 09/06/2013
• 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: 88 YR
• Patient Sex: Male
• Patient Weight: 84 KG