MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRIATHLON PRIM TIB BASEPLATE - CEMENTED; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Model Number	5520-B-300
Medical Device Problem Code	Malposition of Device (2616)
Health Effect - Clinical Codes	Loss of Range of Motion (2032); Ambulation or Postural Difficulties (2544)
Date of Event	02/18/2021
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Reported event an event regarding malposition and rom involving a triathlon baseplate was reported.The event was confirmed via medical review.Method & results product evaluation and results: the reported device was not returned however photographs were provided for review.The photographs note the following: photos show a recently explanted device with biological material throughout.There were no other remarkable observations to note.Clinician review: a review of the provided medical information by a clinical consultant indicated: confirmation: the event cannot be confirmed without medical records and/or radiographs that document the revision.At this point the only data point is the pi report.Root cause: the root cause cannot be determined without additional medical records and radiographs.That said, the single x-ray appeared to show a mal-positioned implant which would explain the revision of the tibial component and could potentially explain the patient¿s complaint.Product history review: could not be performed as lot code information was not provided.Complaint history review: could not be performed as lot code information was not provided.Conclusions: the clinical review suggested that "the single x-ray appeared to show a mal-positioned implant which would explain the revision of the tibial component and could potentially explain the patient¿s complaint." 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
It was reported that the patient's right knee was revised due to extremely limited range of motion.A size 3 baseplate and 3x11 ps insert were revised to a size 3 universal baseplate with augments and stem, and a 3x16 ts insert.Rep reported that he may be able to get the date of primary implantation, and confirmed that no further information will be released by the hospital or surgeon.

• Brand Name: TRIATHLON PRIM TIB BASEPLATE - CEMENTED
• 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: 11507370
• Report Number: 0002249697-2021-00476
• Device Sequence Number: 2776378
• Product Code: MBH
• UDI-Device Identifier: 07613327050318
• UDI-Public: 07613327050318
• Combination Product (Y/N): N
• Initial Reporter State: OH
• Initial Reporter Country: US
• PMA/510(K) Number: K141056
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Explanted Year: 2021
• Reporter Type: Manufacturer
• Report Source: health professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 03/17/2021

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 Model Number: 5520-B-300
• Device Catalogue Number: 5520-B-300
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 02/18/2021
• Initial Report FDA Received Date: 03/17/2021
• 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: 60 YR