Medtronic received information regarding a guidance system being used during a spinal procedure to treat degenerative disc and spondylolisthesis with fixation use screws and rods.
It was reported that registration was completed successfully during the procedure.
When the cannula was placed, it was more than a few millimeters superior.
The patient was re-registered, but the issue was not resolved.
The surgeon took the mount apart, put it back together and registered the patient again, but the issue was not resolved.
The trajectory was still inaccurate.
The surgeon decided to abort the use of the guidance system.
An 27 point accuracy test was completed after the case and the system passed.
There was no patient harm and the procedure was delayed less than an hour.
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