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

Model Number	5551-G-350
Medical Device Problem Code	Naturally Worn (2988)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	10/16/2020
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
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.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.
Event or Problem Description
It was reported that the patient's left knee was revised due to posterior failure of the poly insert and wear of the patellar component.Surgery occurred on (b)(6) 2020.On (b)(6) 2020, revising surgeon discovered that a right sided femoral component was implanted into the left knee approximately 8 years ago (by a surgeon who is now retired).Rep was not present for that procedure.Intra-operatively, the femoral component was deemed to be well-fixed and was not revised.The patellar component and a 4x13 cr insert were revised to a new patellar component and cs insert.

• Brand Name: TRIATHLON ASYMMETRIC X3 PATELLA
• 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: 10819656
• Report Number: 0002249697-2020-02402
• Device Sequence Number: 11204528
• Product Code: MBH
• UDI-Device Identifier: 07613327014808
• UDI-Public: 07613327014808
• 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 Implanted Year: 2012
• Device Explanted Year: 2020
• Reporter Type: Manufacturer
• Report Source: health professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 11/10/2020

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 Model Number: 5551-G-350
• Device Catalogue Number: 5551-G-350
• Device Lot Number: 988H
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 10/16/2020
• Initial Report FDA Received Date: 11/10/2020
• 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: 75 YR