MAUDE Adverse Event Report: MEDACTA INTERNATIONAL SA GMK PRIMARY TOTAL KNEE SYSTEM; GMK-SPHERE GMK TIBIAL TRAY CEMENTED LEFT S5

Model Number	02.07.1205L
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available (4581)
Date of Event	07/23/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Batch review performed on 30 june 2025: lot 2420210: (b)(4) items manufactured and released on 15-nov-2024.Expiration date: 03-nov-2029.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been sold with no similar reported events during the period of review.Based on the information available no definitive root cause can be established, while 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.
Event or Problem Description
At about 3 months from the primary surgery, the patient reported discomfort and instability.The surgeon identified that the tibial component was excessively externally rotated due to malpositioning during the primary surgery.The tibial component was revised with internal rotation correction, and the insert was upsized to improve joint stability.The surgery was completed successfully.

• Brand Name: GMK PRIMARY TOTAL KNEE SYSTEM
• Common Device Name: GMK-SPHERE GMK TIBIAL TRAY CEMENTED LEFT S5
• 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: 22714427
• Report Number: 3005180920-2025-00761
• Device Sequence Number: 9393532
• Product Code: JWH
• UDI-Device Identifier: 07630030819926
• UDI-Public: 07630030819926
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: K090988
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 08/05/2025

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: 02.07.1205L
• Device Lot Number: 2420210
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/25/2025
• Initial Report FDA Received Date: 08/05/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 11/15/2024
• 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 Sex: Male