MAUDE Adverse Event Report: STRYKER GMBH LOCKING SCREW VARIAX 2 T10, FULL THREAD, 3.5MM / L14MM; SCREW, FIXATION, BONE

Catalog Number	657314S
Medical Device Problem Codes	Positioning Failure (1158); Material Deformation (2976)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/19/2023
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The reported event could not be confirmed, since the returned device is conforming to specifications and fully functional.The device inspection revealed the following: the received screw shows signs of use as evidenced by the slightly deformed screw head.Overall, no other damages can be observed.A pre-surgical functional test was performed with the returned screw with a sample plate, and it was found the screw can easily be screwed with a suitable screwdriver without any problem.Hence its functionality was given in all aspects.A pre-surgical functional test was performed with the returned screw with a sample plate, and it was found the screw can easily be screwed with a suitable screwdriver without any problem.Hence its functionality was given in all aspects.A review of the device history for the reported lot did not indicate any abnormalities.No corrective actions are required at this time.No indications of material, manufacturing or design related problems were found during the investigation.A review of the labeling did not indicate any abnormalities.Based on investigation, the root cause was attributed to a user related issue.The failure was caused by mishandling/misalignment of the screwdriver during usage.If any further information is provided, the complaint report will be updated.
Event or Problem Description
As reported: "when the screw was inserted, the doctor felt like the screw head got stripped.Thus, the doctor stopped inserting the screw, and the procedure was continued to replace the screw with new one.".

• Brand Name: LOCKING SCREW VARIAX 2 T10, FULL THREAD, 3.5MM / L14MM
• Common Device Name: SCREW, FIXATION, BONE
• Manufacturer (Section D): STRYKER GMBH; bohnackerweg 1; postfach; selzach 2545 ; SZ 2545
• Manufacturer (Section G): STRYKER GMBH; bohnackerweg 1; postfach; selzach 2545 ; SZ 2545
• Manufacturer Contact: anna jusinski ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 17564603
• Report Number: 0008031020-2023-00307
• Device Sequence Number: 6862932
• Product Code: HWC
• UDI-Device Identifier: 07613327086850
• UDI-Public: 07613327086850
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K132502
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 08/17/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Catalogue Number: 657314S
• Device Lot Number: AA7732
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 08/10/2023
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 07/20/2023
• Initial Report FDA Received Date: 08/17/2023
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/14/2023
• 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
• Patient Sex: Unknown