MAUDE Adverse Event Report: ALPHATEC SPINE, INC. INSIGNIA ANTERIOR CERVICAL PLATE SYSTEM; APPLIANCE, FIXATION, SPINAL INTERVERTEBRAL BODY

Model Number	436-0354
Medical Device Problem Code	Device Dislodged or Dislocated (2923)
Health Effect - Clinical Code	Failure of Implant (1924)
Date of Event	06/06/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The explanted screws are currently being evaluated.A follow-up report with the results of the investigation will be submitted upon completion.
Event or Problem Description
Approximately 10 months postoperatively, radiographic imaging revealed one of the inferior screws backing out of the plate at the c6 level.Revision surgery was performed to remove both of the inferior screws from the plate.
Additional Manufacturer Narrative
Correction: h3.Yes h6.Investigation findings: 3252.Investigation conclusions: 4307.Device evaluation: the plate did not return for evaluation as it remains in situ.However, two screws from the impacted inferior-most level and a recovered blocker fragment were returned.Visual inspection of the screws found witness marks on their proximal head surface with one showing significant edge deformation.The blocker fragment exhibited bilateral surface deformation that could indicate postoperative loading from both screws.Based on the confirmed fracture of the blocker and observed damage to both screws and blocker, it is likely that the blocker component was subjected to excessive postoperative loading prior to fusion.Labeling review: warnings/cautions/precautions: without solid bone fusion, this device cannot be expected to support the cervical spine indefinitely and may fail due to bone-metal interface, metal, or bone failure.Based on the fatigue testing results, the physician/surgeon should consider the levels of implantation, patient weight, patient activity level, compliance of the patient, and other patient conditions which may have an impact on the performance and results of this system.No spinal implant can withstand body loads for an indefinite period of time without the support of bone.In the event that successful fusion is not achieved; bending, breakage, loosening, migration and/or disassembly of the device will occur.Potential risks identified with the use of this device, which may require additional surgery, include device component fracture, loss of fixation, non-union, fracture of the vertebrae, and necrosis of bone, neurological injury and vascular or visceral injury.Possible adverse effects: the following complications and adverse reactions have been shown to occur with the use of similar spinal instrumentation.These effects and any other known by the surgeon should be discussed with the patient preoperatively.Initial or delayed loosening, disassembly, bending, dislocation and/or breakage of device components.Postoperative management: the patient should have a complete understanding of and compliance with the purpose and limitations of the implant devices.The surgeon should instruct the patient on how to compensate for any loss in range of spinal motion due to bone fusion.Additional or revision surgery may be necessary to correct an adverse effect.The surgeon should instruct the patient regarding amount and time frame after surgery of any weight bearing activity.The increased risk of bending, dislocation, and /or breakage of the implant devices, as well as an undesired surgical result are consequences of any type of early or excessive weight bearing, vibration motion, fall, jolts or other movements preventing proper healing and/or fusion development.

• Brand Name: INSIGNIA ANTERIOR CERVICAL PLATE SYSTEM
• Common Device Name: APPLIANCE, FIXATION, SPINAL INTERVERTEBRAL BODY
• Manufacturer (Section D): ALPHATEC SPINE, INC.; 1950 camino vida roble; carlsbad CA 92008
• Manufacturer (Section G): ALPHATEC SPINE, INC.; 1950 camino vida roble; carlsbad CA 92008
• Manufacturer Contact: michael hendrickson ; 1950 camino vida roble; carlsbad, CA 92008 ; 7603566777
• MDR Report Key: 22420395
• Report Number: 2027467-2025-00165
• Device Sequence Number: 8818030
• Product Code: KWQ
• UDI-Device Identifier: 00190376491226
• UDI-Public: (01)00190376491226
• Combination Product (Y/N): N
• Initial Reporter State: CO
• Initial Reporter Country: US
• PMA/510(K) Number: K213443
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 07/07/2025

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: 436-0354
• Device Catalogue Number: 436-0354
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 06/17/2025
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/09/2025
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 07/07/2025
• Supplement Report FDA Received Date: 08/27/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• 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 Sex: Unknown