MAUDE Adverse Event Report: ZIMMER BIOMET, INC. UNKNOWN FEMORAL COMPONENT; PROSTHESIS, KNEE

Medical Device Problem Code	Loosening of Implant Not Related to Bone-Ingrowth (4002)
Health Effect - Clinical Code	Aseptic loosening (4883)
Date of Event	03/16/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
(b)(4).G2: foreign - event occurred in australia.Suggested component code: mechanical (g04).D4: attempts have been made to gather all product identification information and no further information has been provided.The device will not be returned for analysis; however, an investigation of the reported event is in progress.Once the investigation is completed, a supplemental medwatch 3500a will be submitted.
Event or Problem Description
It was reported patient underwent a revision procedure approximately 10 years post implantation due to a loose femoral component.No further information is available.
Event or Problem Description
No further information is available at the time of this report.
Additional Manufacturer Narrative
This follow-up report is being submitted to relay additional information.The following sections were updated: b4, b5, g3, h2, h6.Visual examination of the provided pictures show an explanted bearing, and femur covered in bone and bio debris.No other information can be obtained from the image.Device history record review cannot be performed without product identification.Complaint history review cannot be performed without product identification.Device is used for treatment.Insufficient information provided.Unable to perform a compatibility check.Medical records were not provided.A definitive root cause cannot be determined.No corrective actions, preventive actions, or field actions resulted after investigation of this event.Complaint is not confirmed.If any further information is found which would change or alter any conclusions or information, a supplemental will be filed accordingly.Zimmer biomet will continue to monitor for trends.

• Brand Name: UNKNOWN FEMORAL COMPONENT
• Common Device Name: PROSTHESIS, KNEE
• Manufacturer (Section D): ZIMMER BIOMET, INC.; 1800 w. center st.; warsaw IN 46580
• 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: 24740928
• Report Number: 0001822565-2026-00994
• Device Sequence Number: 8867775
• Product Code: JWH
• Combination Product (Y/N): N
• Initial Reporter Country: AS
• PMA/510(K) Number: UNKNOWN
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2015
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Distributor
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 04/02/2026

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
• Was Device Available for Evaluation?: No
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/16/2026
• Supplement Date Received by Manufacturer: 04/02/2026
• Initial Report FDA Received Date: 03/31/2026
• Supplement Report FDA Received Date: 04/02/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• 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: Hospitalization; Required Intervention
• Patient Sex: Unknown