AIM: The aims of this study were to describe the incidence and type of perioperative complications that occur with minimally invasive anterior retroperitoneal spinal surgery performed at the level of the L5/S1 intervertebral disc. METHODS: A retrospective review of 175 patients: 103 women and 72 men, average age 45, who had undergone anterior spinal surgery at level L5/S1 from January 2001 to February 2011. The preoperative diagnoses were: degenerative disc disease in 87 (50%), failed back surgery syndrome in 53 (30%) and spondylolisthesis in 35 patients (20%). The surgical steps in the minimally invasive anterior retroperitoneal approach from the right side to disc L5/S1 are described. All surgical intraoperative anatomical anomalies and complications directly related to the anterior spinal surgery were documented. RESULTS: Intraoperative pathological-anatomical anomalies were found in 34 patients (19%) and intra - and postoperative minor complications in 24 patients (12%) but no serious complications. The main intraoperative complication was peritoneal opening without visceral injury (5%) and the main postoperative complication was weakness of the right abdominal wall (3%). CONCLUSION: . Retroperitoneal access and surgery at level L5/S1 disc space is a safe procedure when performed by a knowledgeable and experienced spine team. During surgical planning for an anterior approach to the LS spine, the surgeon must carefully assess the neuroimaging results, such as MRI, to minimize potentially disastrous vascular complications.

Department of Anesthesiology and Intensive Care Medicine Faculty of Medicine and Dentistry Palacky University Olomouc and University Hospital Olomouc

Department of Neurosurgery Faculty of Medicine and Dentistry Palacky University Olomouc and University Hospital Olomouc

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