FDA Adverse Event Malfunction Summary report: N

ORTHALIGN PLUS

MDR report key: 10394279 · Received August 11, 2020

Report

Report Number
3007521480-2020-00011
Event Type
Malfunction
Date Received
August 11, 2020
Date of Event
July 9, 2020
Report Date
August 5, 2021
Manufacturer
ORTHALIGN, INC.
Product Code
OLO
UDI-DI
00851977007901
PMA / PMN Number
K171780
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
JA
Reporter Occupation
003

Narratives

Additional Manufacturer Narrative · 0

AN INVESTIGATION OF RETURNED NAVIGATION UNIT LOG FILE FOUND A SIGNIFICANT CHANGE IN CUP VALUES WERE DISPLAYED AFTER THE CUP WAS IMPACTED. THE ROOT CAUSE OF THIS ISSUE IS NAVIGATING THE CUP WITH THE SENSOR ATTACHED TO THE IMPACTOR WHILE IMPACTING. ORTHALIGN DOES NOT RECOMMEND NAVIGATING DURING IMPACTION, IT CAN CAUSE DAMAGE AND LOSS OF NAVIGATION ACCURACY. ORTHALIGN RECOMMENDS NAVIGATING, TAKING THE SENSOR OFF THE IMPACTOR, THEN IMPACTING. AFTER IMPACTION, THE "CHECK CUP" FEATURE CAN BE UTILIZED TO VERIFY RESULTS. A REVIEW OF THE DEVICE HISTORY RECORD (DHR) WAS CONDUCTED. THE DEVICE PASSED ALL MANUFACTURING SPECIFICATIONS PRIOR TO RELEASE. ORTHALIGN, INC. WILL CONTINUE TO MONITOR THIS ISSUE AND TAKE ACTION IF ALERT LIMITS ARE EXCEEDED.

Additional Manufacturer Narrative · 1

AN ORTHALIGN DISTRIBUTOR REPORTED THAT DURING A TOTAL HIP ARTHROPLASTY THERE WAS A MALFUNCTION WITH THE NAVIGATION UNIT. WHILE PERFORMING THE CUP IMPLANTATION THE ACCURACY OF THE NAVIGATION UNIT WAS OFF BY GREATER THAN 3 DEGREES. ORTHALIGN PLUS UNITS HAVE BEEN CLEARED BY THE FDA WITH THE CLAIM OF +/- 3 DEGREES. AN INVESTIGATION WILL BE PERFORMED ONCE THE UNIT IS RETURNED FROM ORTHALIGN INC.'S DISTRIBUTOR IN (B)(6). WITH AN ABUNDANCE OF CAUTION THIS REPORT IS BEING FILED WITH THE UNDERSTANDING OF THE POTENTIAL PATIENT HARM THAT COULD RESULT FROM AN ACCURACY MALFUNCTION OF GREATER THAN 3 DEGREES. A FOLLOW UP REPORT WILL BE FILED WITH THE INVESTIGATION FINDINGS.

Description of Event or Problem · 1

IT WAS REPORTED THAT TOTAL HIP ARTHROPLASTY WAS PERFORMED WITH HIPALIGN, SUPINE APPROACH. THE SURGEON PLANNED THAT TARGET CUP ANGLE WAS 40/15 DEGREES. THE PROCEDURE WAS PROCEEDED IN ACCORDANCE WITH THE TARGET CUP ANGLE. AFTER CUP IMPACTION, THE NAVIGATION SHOWED THAT THE CUP WAS INSTALLED WITH 39/14 DEGREES (CUP ANGLE). POSTOPERATIVELY, HE CONFIRMED X-RAY PHOTOS OF THE CUP ANGLE AND ABDUCTION ANGLE OF THE CUP WAS 56 DEGREES.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
858539 ORTHALIGN PLUS NAVIGATION UNIT OLO ORTHALIGN, INC. 403001-05 00851977007901

Patients

Seq Age Sex Outcome Treatment
1