During the surgical procedure when the doctor requested the centered glenoid sphere (reference (b)(4), serial number (b)(4)), the medical device had the screw blocked, preventing its proper implantation to the baseplate (reference (b)(4), serial number (b)(4)).The surgeon tried to release the screw several times without success.He decides apply for new the glenosphere to implant it the patient.The surgeon decides to insert the eccentric glenoid sphere (reference (b)(4), serial number (b)(4)).The surgery ends without serious events, and the patient does not have any problem or serious impact.This event implied that the anesthesia time was extend for a period of 20 minutes.
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