MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH X3 TRIATHLON CS INSERT #6 11MM; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Catalog Number	5531G611
Medical Device Problem Code	Insufficient Device Problem Information (3190)
Health Effect - Clinical Codes	Injury (2348); Ambulation or Postural Difficulties (2544)
Date of Event	03/20/2019
Type of Reportable Event	Serious Injury
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.
Event or Problem Description
Revision of right knee.During the primary implantation the patient was left with 10 degrees hyperextension.During the revision surgeon replaced all parts except patella, and augments and stem were added.
Additional Manufacturer Narrative
An event regarding revision due to instability (hyperextension) involving a triathlon insert was reported.The event was not confirmed.Method & results: device evaluation and results: not performed as product was not returned.Medical records received and evaluation: no medical records were received for review with a clinical consultant.Device history review: all 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 reported lot.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 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.
Event or Problem Description
Revision of right knee.During the primary implantation the patient was left with 10 degrees hyperextension.During the revision surgeon replaced all parts except patella, and augments and stem were added.

• Brand Name: X3 TRIATHLON CS INSERT #6 11MM
• Common Device Name: PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO
• Manufacturer (Section D): STRYKER ORTHOPAEDICS-MAHWAH; 325 corporate drive; mahwah NJ 07430
• MDR Report Key: 8525135
• Report Number: 0002249697-2019-01652
• Device Sequence Number: 1870953
• Product Code: MBH
• UDI-Device Identifier: 07613327045956
• UDI-Public: 07613327045956
• 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: 2010
• Device Explanted Year: 2019
• Reporter Type: Manufacturer
• Report Source: health professional,other
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 06/03/2019

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: 11/30/2014
• Device Catalogue Number: 5531G611
• Device Lot Number: LBR920
• Was Device Available for Evaluation?: No
• Initial Date Received by Manufacturer: 03/21/2019
• Supplement Date Received by Manufacturer: 05/07/2019
• Initial Report FDA Received Date: 04/17/2019
• Supplement Report FDA Received Date: 06/03/2019
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Hospitalization; Required Intervention
• Patient Age: 79 YR