MAUDE Adverse Event Report: ZIMMER MANUFACTURING B.V. NEXGEN 100MM LENGTH STRAIGHT STEM EXTENSION COMBINED; PROSTHESIS, KNEE

Model Number	N/A
Medical Device Problem Code	Loosening of Implant Not Related to Bone-Ingrowth (4002)
Health Effect - Clinical Code	Aseptic loosening (4883)
Date of Event	12/04/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that the patient underwent an initial knee surgery.Subsequently, about 2 years later, the patient had revision due to loosening.The surgical technique was utilized; there was no surgical delay.Attempts have been made, and no further information has been provided.
Additional Manufacturer Narrative
(b)(4).D10: 00588000500, cemented tibial component, 65245292.00599003610, distal femoral augment block, 64746772.00588001601, size f cemented option femoral component, 65789337.00588006014, size f articular surface with hinge post extension, 66141936.G2: foreign - event occurred in australia.H6: proposed component code: mechanical (g04) - stem.Customer has indicated that the product will not be returned to zimmer biomet for investigation.Once the investigation has been completed, a follow-up mdr will be submitted.
Additional Manufacturer Narrative
This follow-up report is being submitted to relay additional information.The following sections were updated: b4; b5; d2; g1; g3; g6; h1; h2; h3; h4; h6.The reported event could not be confirmed.No product was returned or pictures provided; visual and dimensional evaluations could not be performed.The device history record was reviewed and no discrepancies relevant to the reported event were found.Medical records were not provided.A definitive root cause cannot be determined.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
Event or Problem Description
No further event information available at the time of this report.

• Brand Name: NEXGEN 100MM LENGTH STRAIGHT STEM EXTENSION COMBINED
• Common Device Name: PROSTHESIS, KNEE
• Manufacturer (Section D): ZIMMER MANUFACTURING B.V.; turpeaux industrial park; route #1 km 123.4 bldg #1; mercedita PR 00715
• Manufacturer (Section G): ZIMMER BIOMET, INC.; 1800 w. center st.; warsaw IN 46580
• Manufacturer Contact: jennifer rapsavage ; 56 e. bell dr.; warsaw, IN 46582 ; 5745260384
• MDR Report Key: 24268020
• Report Number: 0002648920-2026-00018
• Device Sequence Number: 10021526
• Product Code: JWH
• UDI-Device Identifier: 00889024220942
• UDI-Public: (01)00889024220942(17)330130(10)65812993
• Combination Product (Y/N): N
• Initial Reporter Country: AS
• PMA/510(K) Number: K173057
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 04/24/2026

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?: Yes
• Operator of Device: Lay User/Patient
• Device Model Number: N/A
• Device Catalogue Number: 00598801010
• Device Lot Number: 65812993
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/08/2026
• Supplement Date Received by Manufacturer: 04/15/2026
• Initial Report FDA Received Date: 02/05/2026
• Supplement Report FDA Received Date: 04/24/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 02/02/2023
• 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
• Concomitant Medical Products and Therapy/Usage Dates: SEE H11
• Outcome Attributed to Adverse Event: Hospitalization; Required Intervention
• Patient Age: 71 YR
• Patient Sex: Unknown