Placement exact des vis pédiculaires par un système d’ostéosynthèse percutané mini-invasif dans les traumatismes rachidiens

Background When performing minimally invasive spine surgery in trauma patients, a short operation time and a perfect positioning of pedicle screws are demanded. In this study, we show that a minimally invasive pedicle screw system allows both. Methods One hundred and twenty-one patients (131 fractures) with fractures between Th 3 and L 5 were treated. The most common fracture type was A3. We treated 52 females and 69 men with a mean age of 56.7 years. In 72% of the cases, the procedure was performed by two experienced spine surgeons. Postoperatively, all patients were examined using a CT scan. In 61 patients, an anterior stabilization was additionally performed in 33 patients, vertebroplasty or cyphoplasty was performed. Fifteen patients underwent laminectomy. Results No patient, postoperatively, developed any additional neurological compromise. In total, 682 screws were placed. In the postoperative CT scan, we found 16 screws (2.2%) in suboptimal position, 8 with medial and 8 with lateral deviation. Discussion With the minimally invasive pedicle screw system used in this study, spinal fractures can be treated in a short operation time with percutaneous stabilization and a correct positioning of the pedicle screws in almost 98%. In our study, no screw was so much malpositioned that revision surgery would have been necessary. Level of evidence Level III Case-control study.