It was reported that during the second stage of the deep brain stimulation (dbs) implant procedure where the lead and lead extension were being implanted, it was found that the already implanted implantable pulse generator (ipg) set screw was unable to be tightened in order to secure the lead.The physician used the torque screwdriver to attempt to tighten the set screw however, he was unable to hear the clicking sound that indicates the torque limit.Therefore, the ipg was explanted and replaced intraoperatively.The explanted ipg will not be returned as it was retained by the medical facility.There were no resulting patient complications.
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