MAUDE Adverse Event Report: MEDACTA INTERNATIONAL SA KNEE INSTRUMENTS; TRIAL OFFSET 3MM

Model Number	02.07.10.8651
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/30/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Batch review performed on 4 february 2025.(b)(4) items manufactured and released on 05-sep-2022.No anomalies found related to the problem.To date, no similar events have been reported on the same lot during the period of review.Visual inspection performed by r&d department: the performed analysis confirmed that the antirotational insert of the trial offset has been disassembled from the main body during trial removal from the bone.During extraction of the system consisting of extension stem, trial offset, and trial keel assembly, from the bone, the elastic clipping of the threaded insert of the trial offset is unable to withstand the blows and disengages from the offset body itself.Root cause: the issue was likely influenced by a combination of the inherent mechanical limitations of the design version involved and the forces applied under the specific conditions of use.
Event or Problem Description
The antirotational insert of the trial offset 3mm broke and remained inside the trial femur and stem.The operation was extended by around 30 minutes and the patient had to remain under anesthesia longer.In addition, bone had to be removed from the anterior femoral bone above the offset connector in order to be able to grasp the shaft with forceps.

• Brand Name: KNEE INSTRUMENTS
• Common Device Name: TRIAL OFFSET 3MM
• 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: 21420549
• Report Number: 3005180920-2025-00102
• Device Sequence Number: 20753206
• Product Code: LXH
• UDI-Device Identifier: 07630345713148
• UDI-Public: 07630345713148
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• 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): 02/20/2025

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?: Yes
• Operator of Device: Health Professional
• Device Model Number: 02.07.10.8651
• Device Lot Number: 2254376
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 02/12/2025
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/30/2025
• Initial Report FDA Received Date: 02/20/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 09/05/2022
• 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: Reuse
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other
• Patient Sex: Unknown