MAUDE Adverse Event Report: STRYKER GMBH GAMMA4 - RC LAG SCREW D10.5X90MM; ROD, FIXATION, INTRAMEDULLARY AND ACCESSORIES

Catalog Number	81660090S
Medical Device Problem Code	Deformation Due to Compressive Stress (2889)
Health Effect - Clinical Code	Perforation (2001)
Date of Event	11/14/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Once the investigation is completed, any additional information will be reported in a supplemental report.
Event or Problem Description
It was reported that, due to the cutout, an extraction order was issued.Upon arriving to witness the extraction, the blade was found bent.It was reported that, the nail was left in patient and distal lateral fastener in place, only the rc lag screw and u-blade end cap were removed.The bent blade was confirmed during removal.It was unclear when it bent.No further information was provided.
Additional Manufacturer Narrative
The reported event could not be confirmed since the device was not returned for evaluation and no other evidences were provided.A review of the device history for the reported lot did not indicate any abnormalities.No corrective actions are required at this time.A review of the labeling did not indicate any abnormalities.No indications of material, manufacturing or design related problems were found during the investigation.More detailed information about the complaint event as well as the affected device must be available in order to determine the root cause of the complaint event.If the device is returned or if any additional information is provided, the investigation will be reassessed.
Event or Problem Description
It was reported that, due to the cutout, an extraction order was issued.Upon arriving to witness the extraction, the blade was found bent.It was reported that, the nail was left in patient and distal lateral fastener in place, only the rc lag screw and u-blade end cap were removed.The bent blade was confirmed during removal.It was unclear when it bent.No further information was provided.

• Brand Name: GAMMA4 - RC LAG SCREW D10.5X90MM
• Common Device Name: ROD, FIXATION, INTRAMEDULLARY AND ACCESSORIES
• 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: dannielle stap ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 23830648
• Report Number: 0009610622-2025-00019
• Device Sequence Number: 13080878
• Product Code: HSB
• UDI-Device Identifier: 07613327591804
• UDI-Public: (01)07613327591804(17)350630(10)K139A46
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K230512
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Device Explanted Year: 2025
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 02/03/2026

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: Lay User/Patient
• Device Catalogue Number: 81660090S
• Device Lot Number: K139
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 11/19/2025
• Supplement Date Received by Manufacturer: 01/07/2026
• Initial Report FDA Received Date: 12/17/2025
• Supplement Report FDA Received Date: 02/03/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 07/23/2025
• 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: 86 YR
• Patient Sex: Female