FDA Adverse Event Injury Summary report: N

CD HORIZON SPINAL SYSTEM

MDR report key: 2182460 · Received July 28, 2011

Report

Report Number
1030489-2011-00959
Event Type
Injury
Date Received
July 28, 2011
Report Date
November 8, 2011
Manufacturer
WARSAW ORTHOPEDICS, INC.
Product Code
KWP
PMA / PMN Number
K043488
Adverse Event
Yes
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
IT
Reporter Occupation
PHYSICIAN

Narratives

Additional Manufacturer Narrative · 1

ANALYSIS OF THE RETURNED DEVICE SHOWS THAT THE CROWNS ARE SHOWING IMPACTIONS DUE TO TIGHTENING WITH A SPINAL ROD. THE DEFORMATION IS SYMMETRICAL WHICH IS CONSISTENT WITH PROPER TIGHTENING OF THE CONNECTION. THE RODS WERE CUT IN SEVERAL PIECES AS SHOWN THE DEEPER MARKS COMING FROM A ROD CUTTER. THE TWO PIECES OF ROD WITH A ROUNDED TIP PRESENT TWO MARKS COMING FROM THE SETSCREWS AT THEIR POSTERIOR SIDE: ONE MARK CLOSEST TO THE ROUNDED TIP CORRESPONDING TO THE PRELIMINARY TIGHTENING AND THE OTHER MARK CORRESPONDING TO THE FINAL TIGHTENING. ONE OF THOSE TWO PIECES OF ROD PRESENTS 1 CONTACT WITH THE MAS CROWN AT ITS ANTERIOR SIDE. ONE OTHER PIECE OF ROD PRESENTS 1 MARK COMING FROM THE SETSCREW AT ITS POSTERIOR SIDE. ALL SETSCREWS PRESENT WORN SURFACES AT THE FLAT BOTTOM WHICH ARE CONSISTENT WITH THE TIGHTENING OF THE RODS. NO PRE-EXISTING DEFECT RESPONSIBLE OF THE EVENT HAS BEEN IDENTIFIED ON THE RETURNED IMPLANTS. THE OBSERVATIONS SUGGEST THAT THE RODS HAVE BEEN CONNECTED TO THE MAS PROPERLY.

Additional Manufacturer Narrative · 1

(B)(4). NEITHER THE DEVICE NOR FILMS OF APPLICABLE IMAGING STUDIES WERE RETURNED TO THE MANUFACTURER FOR EVALUATION. THEREFORE, WE ARE UNABLE TO DETERMINE THE DEFINITIVE CAUSE OF THE REPORTED EVENT. A REVIEW OF THE DEVICE HISTORY RECORDS FOR THIS DEVICE DID NOT REVEAL ANY NON-CONFORMANCES TO SPECIFICATION OR DEVIATIONS IN PROCEDURE WHICH MIGHT CONTRIBUTE TO THE REPORTED EVENT.

Description of Event or Problem · 1

IT WAS REPORTED THAT THE PATIENT UNDERWENT AN UNSPECIFIED SPINAL FUSION USING POSTERIOR INSTRUMENTATION TO TREAT THORACOLUMBAR-SACRAL KYPHOSCOLIOSIS WAS COMPLETED. 186 DAYS POST-OP, THE PATIENT UNDERWENT A REVISION SURGERY TO REMOVE AND REPLACE A BROKEN ROD.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 CD HORIZON SPINAL SYSTEM APPLIANCE, FIXATION, SPINAL INTERLAMINAL KWP WARSAW ORTHOPEDICS, INC. NA 0080072W

Patients

Seq Age Sex Outcome Treatment
1 00059 YR Required Intervention