MAUDE Adverse Event Report: MEDACTA INTERNATIONAL SA GMK TOTAL KNEE SYSTEM; GMK-SPHERE TIBIAL TRAY FIXED CEMENTED SIZE 2 L TINBN COATED

Model Number	02.07.2802L
Medical Device Problem Code	Loosening of Implant Not Related to Bone-Ingrowth (4002)
Health Effect - Clinical Code	Aseptic loosening (4883)
Date of Event	03/27/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
Revision surgery due to a loose tibia and the cause is unknown.At about 1 year and 3 months post primary the surgeon revised all components.The surgery was completed successfully.
Additional Manufacturer Narrative
Batch review performed on 1 april 2025: lot 2303036: (b)(4) items manufactured and released on 13-sep-2023.Expiration date: 2028-08-27.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been sold with no similar reported event during the period of review.There is no indication that any potential issue with the device may have caused or contributed to the event, and the device history record review does not indicate any potential manufacturing related issue.

• Brand Name: GMK TOTAL KNEE SYSTEM
• Common Device Name: GMK-SPHERE TIBIAL TRAY FIXED CEMENTED SIZE 2 L TINBN COATED
• Manufacturer (Section D): MEDACTA INTERNATIONAL SA; strada regina; castel san pietro, switzerland 6874 ; SZ 6874
• Manufacturer (Section G): MEDACTA INTERNATIONAL SA; strada regina; castel san pietro, switzerland 6874 ; SZ 6874
• Manufacturer Contact: marco giannessi ; strada regina; castel san pietro, switzerland 6874 ; SZ 6874
• MDR Report Key: 21899447
• Report Number: 3005180920-2025-00318
• Device Sequence Number: 4221867
• Product Code: JWH
• UDI-Device Identifier: 07630030821783
• UDI-Public: 07630030821783
• Combination Product (Y/N): N
• Initial Reporter State: MO
• Initial Reporter Country: US
• PMA/510(K) Number: K202684
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2023
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 04/24/2025

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: 02.07.2802L
• Device Lot Number: 2303036
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/27/2025
• Initial Report FDA Received Date: 04/24/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 09/13/2023
• 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
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 74 YR
• Patient Sex: Female
• Patient Weight: 73 KG
• Patient Race: White