MAUDE Adverse Event Report: STRYKER TRAUMA KIEL LOCKING SCREW, FULLY THREADED T2 TIBIA Ø5X50 MM; ROD, FIXATION, INTRAMEDULLARY AND ACCESSORIES

Model Number	1896-5050S
Medical Device Problem Codes	Break (1069); Fracture (1260)
Health Effect - Clinical Codes	Failure of Implant (1924); Nonunion/Delayed-union Bone Fracture (2369)
Date of Event	12/07/2021
Type of Reportable Event	Serious Injury
Event or Problem Description
The customer reported a broken gamma nail which requires revision.Update: non union in patient.Upon return of the devices, one of the locking screw was found broken.
Additional Manufacturer Narrative
Upon completion of the investigation, additional information will be provided in a supplemental report.
Additional Manufacturer Narrative
Upon completion of the investigation, additional information will be provided in a supplemental report.
Event or Problem Description
The customer reported a broken gamma nail which requires revision.Update: non union in patient.Upon return of the devices, one of the locking screw was found broken.
Additional Manufacturer Narrative
The reported event could be confirmed, since the device was returned for evaluation and matches the alleged failure mode.Device inspection revealed the following: the received screw was found to be broken from the mid-shaft region.Although lines of rest are not clearly visible, but they are present on the breakage surface very slightly.Along with that, the smooth surface indicates towards a fatigue fracture due to high cyclic overloading.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 the above investigation and the available information, the root cause of the breakage is a user related factor.Non-union and progressive overloading eventually led to the breakage of the nail and subsequently a distal locking screw as well, in a fatigue manner.If the device is returned or if any additional information is provided, the investigation will be reassessed.
Event or Problem Description
The customer reported a broken gamma nail which requires revision.Update: non union in patient.Upon return of the devices, one of the locking screw was found broken.

• Brand Name: LOCKING SCREW, FULLY THREADED T2 TIBIA Ø5X50 MM
• Common Device Name: ROD, FIXATION, INTRAMEDULLARY AND ACCESSORIES
• Manufacturer (Section D): STRYKER TRAUMA KIEL; prof. kuentscher-strasse 1-5; schoenkirchen/kiel D-242 32; GM D-24232
• Manufacturer (Section G): STRYKER TRAUMA KIEL; prof. kuentscher-strasse 1-5; schoenkirchen/kiel D-242 32; GM D-24232
• Manufacturer Contact: marilyne chaumont ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 13523229
• Report Number: 0009610622-2022-00048
• Device Sequence Number: 12090182
• Product Code: HSB
• UDI-Device Identifier: 04546540202512
• UDI-Public: 04546540202512
• Combination Product (Y/N): N
• Initial Reporter Country: UK
• PMA/510(K) Number: K032244
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Explanted Year: 2021
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 04/04/2022

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: Lay User/Patient
• Device Expiration Date: 01/31/2026
• Device Model Number: 1896-5050S
• Device Catalogue Number: 18965050S
• Device Lot Number: K0663DD
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 01/19/2022
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 01/19/2022
• Supplement Date Received by Manufacturer: 03/08/2022
• Initial Report FDA Received Date: 02/14/2022
• Supplement Report FDA Received Date: 04/04/2022
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 02/11/2021
• 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; Hospitalization
• Patient Sex: Unknown