FDA Adverse Event Malfunction Summary report: N

VIPER X-25 FINAL TIGHTENER

MDR report key: 1960356 · Received December 16, 2010

Report

Report Number
1526439-2010-00181
Event Type
Malfunction
Date Received
December 16, 2010
Date of Event
November 19, 2010
Manufacturer
DEPUY SPINE INC.
Product Code
LXH
PMA / PMN Number
EXEMPT
Removal / Correction Number
NA
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
MI, US
Reporter Occupation
OTHER

Narratives

Additional Manufacturer Narrative · 1

VISUAL EXAMINATION OF THE DRIVERS UNDER MAGNIFICATION SHOWED PLASTIC DEFORMATION, AS THE TIP SHEARED OFF IN TORSION. THE TORQUE WRENCH WAS TESTED AND IT WAS FOUND THAT THE INNER MECHANISM WAS FROZEN AND NOT LIMITING TORQUE. (B)(4). THE WRENCH WAS MANUFACTURED IN 09/2008, AND APPEARS TO HAVE SEEN MUCH USE. BREAKAGE OF THE TIP WAS CAUSED BY THE APPLICATION OF ATYPICAL FORCE BY THE USER DURING TIGHTENING. THE TORQUE WRENCH WAS NOT FUNCTIONING AS INTENDED AND DID NOT LIMIT TORQUE.

Description of Event or Problem · 1

SURGEON ATTEMPTED TO TIGHTEN THE SETSCREW DOWN IN A SPINAL CONSTRUCT BUT REPORTED THAT THE TORQUE HANDLE DID NOT CLICK OUT. TWO DRIVER TIPS WERE SHEARED OFF INSIDE THE SETSCREW HEX DURING TIGHTENING. THE TIPS WERE COLD WELD IN THE SETSCREW AND CANNOT MIGRATE. THERE WAS NO ADVERSE PATIENT CONSEQUENCE AS A RESULT OF THIS EVENT. AS AN UNINTENDED PORTION OF THE DEVICE WAS LEFT IN VIVO, AN MDR IS FILED TO DOCUMENT THIS MALFUNCTION. DEVICE 1 OF 3. SEE ALSO: 1526439-2010-00182 AND 1526439-2010-00183.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 VIPER X-25 FINAL TIGHTENER MANUAL SURGICAL DEVICE LXH DEPUY SPINE INC. NA X01208

Patients

Seq Age Sex Outcome Treatment
1 UNK