FDA Adverse Event Injury Summary report: N

ACU-LOC® VDR PLATE, NARROW, LEFT

MDR report key: 1994121 · Received February 16, 2011

Report

Report Number
3025141-2011-00003
Event Type
Injury
Date Received
February 16, 2011
Date of Event
January 17, 2011
Report Date
January 17, 2011
Manufacturer
ACUMED LLC
Product Code
HRS
PMA / PMN Number
K012655
Adverse Event
Yes
Report Source
Manufacturer report
Reporter Location
AZ, US
Reporter Occupation
PHYSICIAN

Narratives

Additional Manufacturer Narrative · 1

EVALUATION: SURGICAL TECHNIQUE INDICATES A MINIMUM OF 6 DISTAL SCREWS SHOULD BE USED IN THE FOUR MOST DISTAL HOLES AND TWO RADIAL STYLOID HOLES. THE PLATE WAS RETURNED WITH ONLY 4 SCREW HEADS IN THE PLATE WHICH INDICATES THE OTHER HOLES WERE NOT FILLED. IT IS POSSIBLE THE HOLES WERE FILLED AND THE SCREWS WERE THEN REMOVED AFTER EXPLANTATION, BUT ANY SCREWS IN THOSE LOCATIONS WOULD MOST LIKELY HAVE BROKEN AT THE SAME TIME THE OTHER FOUR SCREWS BROKE. WHILE IT CAN BE ASSUMED THAT ONLY 4 SCREWS WERE USED, IT IS UNCLEAR HAD ALL 6 SCREWS BEEN USED THAT IT WOULD HAVE PREVENTED THIS EVENT FROM OCCURING. IN THE INITIAL REPORT FROM THE SURGEON, THE PATIENT LIFTED SOMETHING UP BUT THERE IS NO INFORMATION AS TO HOW HEAVY THE OBJECT WAS OR HOW LONG AFTER THE SURGERY THIS ACTIVITY WAS PERFORMED. CONCLUSION: A DEFINITIVE CONCLUSION CANNOT BE DETERMINED WITHOUT ADDITIONAL INFORMATION AS DESCRIBED IN THE EVALUATION SECTION ABOVE. IT IS UNCLEAR IF THE INCIDENT WOULD STILL HAVE OCCURRED IF 6 DISTAL SCREWS WERE USED INSTEAD OF FOUR AND THE FORCES EXERTED ON THE SCREWS ARE NOT KNOWN AT THIS TIME. THEREFORE, THE CAUSE OF THIS FAILURE CANNOT BE DETERMINED.

Description of Event or Problem · 1

AN ACU-LOC VDR PLATE, NARROW, LEFT WAS IMPLANTED ON (B)(6) 2010, AND A REVISION SURGERY DONE ON (B)(6) 2011. PER THE SURGEON, THE PATIENT REPORTED THAT HE WAS LIFTING SOMETHING AND FELT A POP. IT WAS DETERMINED THAT THE FOUR DISTAL SCREWS BROKE APPROXIMATELY 5-6 THREADS DOWN FROM THE HEAD (ON EACH). THE SCREWS BROKE IN SUCH A MANNER AS TO LEAVE A PORTION IN THE PATIENT'S BONE.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 ACU-LOC® VDR PLATE, NARROW, LEFT BONE PLATE HRS ACUMED LLC PL-DR30L 234175

Patients

Seq Age Sex Outcome Treatment
1 Required Intervention