Computernavigierte Implantation transpedikulärer Schrauben in die Lendenwirbelsäule

Abstract

Between July 2000 and February 2002 this system was selected for 109 patients. No complications were observed and no revision became necessary. The screw length varied between 35 and 50 mm; the length of the screws does not affect the procedure. Intra- and postoperative radiographs (anteroposterior and lateral) were done in every patient. The first 48 patients underwent CT control that confirmed the optimal intrapedicular and intravertebral screw position. Thereafter, these controls were omitted for cost-saving.