MAUDE Adverse Event Report: STRYKER TRAUMA KIEL DELTA STRIKE PLATE IMN INSTRUMENTS; ORTHOPEDIC MANUAL SURGICAL INSTRUMENT

Catalog Number	23510050
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Code	No Known Impact Or Consequence To Patient (2692)
Date of Event	10/21/2019
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Once the investigation has been completed any additional information will be reported in a supplemental report.
Event or Problem Description
Primary procedure, left femur.It was reported that upon impaction, the t2 alpha strike plate broke off where the threads connect with the targeting arm.A t2 strike plate (non-alpha) was obtained and used to complete the procedure successfully with a delay of approximately 5 minutes.The rep confirmed that no further information is available.
Additional Manufacturer Narrative
The reported event could be confirmed.The device inspection revealed the following: the device returned broke on the transition radii of the thread undercut to the stop shoulder of the thread connection.A microscope analysis of the surface of the device shows a brittle area, which indicates that the material was subjected to a significant amount of stress, which lead to it breakage without significant plastic deformation.An example of improper stress would be backslapping the device forcefully.Indeed, the device and its threads are not supposed to withstand high forces during backslapping, especially since this introduces bending forces, which can be heightened at the tip of the device due to the long lever arm.The analysis of the surface breakage leads to conclude that this event was due to a user related root cause.The analysis of the device resulted in finding that the thread of the strike plate had been damaged by excessive load application.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.If any further information is provided, the investigation report will be updated.
Event or Problem Description
Primary procedure, left femur.It was reported that upon impaction, the t2 alpha strike plate broke off where the threads connect with the targeting arm.A t2 strike plate (non-alpha) was obtained and used to complete the procedure successfully with a delay of approximately 5 minutes.The rep confirmed that no further information is available.

• Brand Name: DELTA STRIKE PLATE IMN INSTRUMENTS
• Common Device Name: ORTHOPEDIC MANUAL SURGICAL INSTRUMENT
• Manufacturer (Section D): STRYKER TRAUMA KIEL; prof. kuentscher-strasse 1-5; schoenkirchen/kiel D-242 32
• MDR Report Key: 9332566
• Report Number: 0009610622-2019-00925
• Device Sequence Number: 16705328
• Product Code: LXH
• UDI-Device Identifier: 07613327350210
• UDI-Public: 07613327350210
• Combination Product (Y/N): N
• Initial Reporter State: ID
• Initial Reporter Country: US
• 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,Followup
• Report Date (Section B): 12/30/2019

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: 23510050
• Device Lot Number: KP431174
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 11/05/2019
• Initial Date Received by Manufacturer: 10/21/2019
• Supplement Date Received by Manufacturer: 12/05/2019
• Initial Report FDA Received Date: 11/15/2019
• Supplement Report FDA Received Date: 12/30/2019
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Patient Age: 19 YR