MAUDE Adverse Event Report: DEPUY-SYNTHES SPINE POLYAXIAL SCREW 5.5MM X 7.00MM X 40MM; ORTHOSIS, SPINAL PEDICLE FIXATION, FOR DEGENERATIVE DISC DISEASE

Model Number 188112740

Device Problem Break (1069)

Patient Problem Device Embedded In Tissue or Plaque (3165)

Event Date 06/28/2017

Event Type  Injury  

Manufacturer Narrative

Udi: (b)(4).Review of the device history record identified no issues during the manufacturing or release of the product that could be attributed to the problem reported by the customer.The product was released accomplishing all quality requirements.A follow up report will be filed upon completion of the investigation.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.

Event Description

It was reported that the patient had fusion with implants approximately one year ago with unknown surgeon.Patient subsequently fell at work and when an xray was taken, it showed the shafts of both s1 screws bilaterally had sheared off from the head.Posterior hardware removal l5/s1 was performed.Because there was already bony fusion, all implants were removed without replacement.

Manufacturer Narrative

Visual examination of the returned device revealed the shank was fractured off the screw head.The shank was not returned.Device was subsequently sent for fracture analysis.Optical imaging found a large shiny area indicative of two surfaces rubbing against one another post fracture.The image also exhibits two surface morphologies, a smooth/flat region and a rough/grainy region.This implies a fatigue failure of the screw and inability of the screws to bear the load or the effect of the fall by the patient which will cause the shafts of the screw to break.A trend analysis was conducted.No emerging trends were found requiring further actions.The root cause cannot be positively determined from the sample and the information provided.However, based on the evaluation, the possible cause of the breakage is fatigue failure of the screw.As there has been no issue identified in the manufacturing or release of the device that could have contributed to the problem reported by the customer and no systemic trends were found, this complaint file will be closed with no further action required.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.

• Brand Name: POLYAXIAL SCREW 5.5MM X 7.00MM X 40MM
• Type of Device: ORTHOSIS, SPINAL PEDICLE FIXATION, FOR DEGENERATIVE DISC DISEASE
• Manufacturer (Section D): DEPUY-SYNTHES SPINE; 325 paramount drive; raynham MA 02767
• Manufacturer (Section G): DEPUY-SYNTHES SPINE; 325 paramount drive; raynham MA 02767
• Manufacturer Contact: jason busch ; 325 paramount drive; raynham, MA 02767 ; 5088808201
• MDR Report Key: 6810949
• MDR Text Key: 83250643
• Report Number: 1526439-2017-10687
• Device Sequence Number: 1
• Product Code: NKB
• UDI-Device Identifier: 10705034146973
• UDI-Public: (01)10705034146973
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K111136
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: company representative,foreig
• Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date: 07/28/2017

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
• Device Operator: Physician
• Device Model Number: 188112740
• Device Catalogue Number: 188112740
• Device Lot Number: RL141270
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 08/01/2017
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 07/28/2017
• Initial Date FDA Received: 08/22/2017
• Supplement Dates Manufacturer Received: 09/12/2017
• Supplement Dates FDA Received: 09/13/2017
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 09/13/2011
• Is the Device Single Use?: Yes
• Type of Device Usage: N
• Patient Sequence Number: 1
• Patient Outcome(s): Other; Required Intervention