MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRIATHLON STEM EXTENDER 50MM; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO

Model Number	5571-S-050
Medical Device Problem Code	Loss of Osseointegration (2408)
Health Effect - Clinical Codes	Pain (1994); Inadequate Osseointegration (2646)
Date of Event	05/24/2022
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 right knee was revised.As reported by rep: "pt.Presented with thigh pain, imaging was indicative of a loose femoral implant following a knee-revision "back in october of 2017".Surgeon ruled out infection and determined the femoral construct was aseptically loose.He performed a revision of the femoral implants, leaving the tibial baseplate and stem in-situ.No further information available." spoke to rep.No wear or damage was noted intra-operatively.

• Brand Name: TRIATHLON STEM EXTENDER 50MM
• Common Device Name: PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, CO
• 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: arokiya raj ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 14723106
• Report Number: 0002249697-2022-00853
• Device Sequence Number: 4807629
• Product Code: MBH
• UDI-Device Identifier: 07613327014983
• UDI-Public: 07613327014983
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K070095
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2017
• Device Explanted Year: 2022
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 06/16/2022

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: 03/31/2021
• Device Model Number: 5571-S-050
• Device Catalogue Number: 5571-S-050
• Device Lot Number: 3P7WV5
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 05/24/2022
• Initial Report FDA Received Date: 06/16/2022
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 03/15/2016
• 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: Required Intervention; Hospitalization
• Patient Age: 72 YR
• Patient Sex: Male