It was reported that after finishing distal femur burring for tka demo, they were prompted to recalibrate the handpiece before moving on to the tibia burring.They were able to recalibrate and finish burring the tibia, but after all the cuts were made, the doctor wanted to make an adjustment to the plan, so they went back to the planning screen.After making the changes, they were unable to move into the cutting screens because the button on the screen wouldn¿t light up.Tried switching to bur all but that didn¿t help.Tried going back and undoing the changes but nothing allowed to move forward.Quit the case, logged out, reopened and surgery was completed (the ¿cut femur¿ button could not be selected unless they quit the case and reopened).No patient involved.The investigation found that there were multiple pfs errors and an exposure motor control error.
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