POLYAXIAL DRIVER, REFORM
Report
- Report Number
- 3005739886-2015-00034
- Event Type
- Injury
- Date Received
- March 24, 2015
- Date of Event
- December 18, 2014
- Report Date
- March 2, 2015
- Manufacturer
- PRECISION SPINE, INC.
- Product Code
- HXX
- PMA / PMN Number
- EXEMPT
- Adverse Event
- Yes
- Report Source
- Manufacturer report
- Reporter Location
- AL, US
- Reporter Occupation
- NOT APPLICABLE
Narratives
ENGINEERING EVALUATION OF THE RETURNED DRIVER CONCLUDED THAT THE ROOT CAUSE OF THE FRACTURED TIP IS ATTRIBUTED TO THE DRIVER NOT BEING FULLY SEATED IN THE POLYAXIAL SCREW. THE PLASTIC OUTER SLEEVE OF THE ASSEMBLY WAS PREVIOUSLY MODIFIED TO MITIGATE THE OCCURRENCE OF THE USER UNTHREADING THE OUTER SECURE SHAFT FROM THE TULIP. THIS CHANGE WAS IMPLEMENTED IN MARCH OF 2014. ADDITIONALLY, A DESIGN CHANGE ON THE THREAD-FORM OF THE POLYAXIAL SCREW, HAS BEEN IMPLEMENTED TO REDUCE THE AMOUNT OF THREAD-WASHOUT, THUS REDUCING THE INSERTION TORQUE, TO MITIGATE FAILURES DUE TO THE AFOREMENTIONED CONDITION. REVIEW OF MANUFACTURING HISTORY FOUND A TOTAL OF (B)(4) PIECES OF THIS LOT WERE RELEASED FOR DISTRIBUTION ON NOVEMBER 8, 2014 WITH NO DEVIATION OR ANOMALIES. THIS LOT WAS MANUFACTURED TO A PREVIOUS REVISION OF THE PLASTIC OUTER SLEEVE. DESIGN IMPROVEMENTS HAVE BEEN INITIATED FOR THE SHAFT SLEEVE COMPONENT SUBSEQUENT TO THE MANUFACTURE OF THIS LOT. THIS REPORT IS NUMBER 1 OF 3 MDR'S FILED FOR THE SAME EVENT (REFERENCE 30057398896-2015-00034/36).
IT WAS REPORTED THAT DURING A L3-S1 PROCEDURE PERFORMED ON (B)(6) 2014, THE TIP OF TWO REFORM POLYAXIAL DRIVERS (39-SP-0700) BROKE WHILE IMPLANTING THE 7.5 X 45 MM REFORM POLYAXIAL SCREWS. THE SCREWS WERE REMOVED AND REPLACED. NO DELAY TO THE PROCEDURE RESULTED.
Devices
| Seq | Brand | Generic | Product Code | Manufacturer | Model | Lot | UDI-DI |
|---|---|---|---|---|---|---|---|
| 198071 | POLYAXIAL DRIVER, REFORM | SCREWDRIVER | HXX | PRECISION SPINE, INC. | 3144MMR |
Patients
| Seq | Age | Sex | Outcome | Treatment |
|---|---|---|---|---|
| 1 | Required Intervention |