MAUDE Adverse Event Report: MEDACTA INTERNATIONAL SA GMK SPHERE TOTAL KNEE SYSTEM; GMK-SPHERE TIBIAL INSERT E-CROSS - FLEX 4L - 13MM

Model Number	02.12.E0413FL
Medical Device Problem Code	Device Appears to Trigger Rejection (1524)
Health Effect - Clinical Codes	Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available (4581); Medical device site infection (4845)
Date of Event	08/18/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Batch review performed on 25-aug-2025: 02.12.E0413fl gmk-sphere tibial insert e-cross - flex 4l - 13mm (k202022) lot.2242240: (b)(4) items manufactured and released on 12-07-2023 expiration date: 2028-06-25.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.02.07.1204l tibial tray fix cemented s.4l (k090988) lot.2305869: (b)(4) items manufactured and released on 03-01-2023 expiration date: 2027-11-29.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.02.12.0025l gmk-sphere femoral component cemented - 5+l (k140826) lot.2305319: (b)(4) items manufactured and released on 14-06-2023 expiration date: 2028-05-21.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.02.07.0036rp resurfacing patella size 4 (k113571) lot.2307827: (b)(4) items manufactured and released on 26-06-2023 expiration date: 2028-06-11.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.Conclusions: infection is a known possible complication of any surgery.Although no root cause can be established, there is no indication that any issue with the device may have caused or contributed to the event, and the document review does not indicate any potential manufacturing related cause.
Event or Problem Description
At about 1 year and 10 months the patient came in due to signs of an infection and the pathogen is unknown.The surgeon performed a washout, removed all implants, and implanted an antibiotic spacer.The surgery was completed successfully.

• Brand Name: GMK SPHERE TOTAL KNEE SYSTEM
• Common Device Name: GMK-SPHERE TIBIAL INSERT E-CROSS - FLEX 4L - 13MM
• 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: 23036822
• Report Number: 3005180920-2025-00852
• Device Sequence Number: 9682424
• Product Code: JWH
• UDI-Device Identifier: 07630971261877
• UDI-Public: 07630971261877
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: K202022
• 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: Other
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 09/12/2025

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: 02.12.E0413FL
• Device Lot Number: 2242240
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/18/2025
• Initial Report FDA Received Date: 09/12/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 01/03/2023
• 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 Sex: Unknown