MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH X3 TRIATHLON CS INS SIZE4 11MM; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Catalog Number	5531G411
Medical Device Problem Code	Inadequacy of Device Shape and/or Size (1583)
Health Effect - Clinical Code	No Known Impact Or Consequence To Patient (2692)
Date of Event	07/30/2019
Type of Reportable Event	Malfunction
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.If additional information is received, it will be provided in a supplemental report upon completion of the investigation.
Event or Problem Description
It was reported that, during a tka, after locking the insert, a surgeon noticed a gap(1mm lateral/posterior) between the inset and baseplate.Therefore, he tried to insert another size insert but it was also same condition.The second stayed implanted.Update: the delay time was about 2-3 minutes.Right side.

• Brand Name: X3 TRIATHLON CS INS SIZE4 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: 8939443
• Report Number: 0002249697-2019-03010
• Device Sequence Number: 328394
• Product Code: MBH
• UDI-Device Identifier: 07613327045789
• UDI-Public: 07613327045789
• Combination Product (Y/N): N
• PMA/510(K) Number: K141056
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2019
• Reporter Type: Manufacturer
• Report Source: health professional,other
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 08/28/2019

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 12/31/2022
• Device Catalogue Number: 5531G411
• Device Lot Number: LHE238
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 08/12/2019
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 08/01/2019
• Initial Report FDA Received Date: 08/28/2019
• 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: Other
• Patient Age: 81 YR