Fig. 4From: Antibiotic-loaded calcium sulfate beads in spinal surgery for patients with spondylodiscitis: a clinical retrospective studyA Schematic picture of transforaminal approach for spondylodiscitis. B Intraoperative picture of the fenestration. C Debridement of the lesion with curette. D Insertion of the CS beads. E Haemostatic gauze was put between the beads and the canal to prevent later migrating backwardBack to article page