Outcome of One-Stage Percutaneous Endoscopic Debridement and Lavage Combined with Percutaneous Pedicle Screw Fixation for Lumbar Pyogenic Spondylodiscitis

Background: This study assessed the therapeutic effect of one-stage percutaneous endoscopic debridement and lavage (PEDL) combined with percutaneous pedicle screw fixation (PPSF) in the treatment of lumbar pyogenic spondylodiscitis. Methods From March 2017 to October 2019, 25 patients diagnosed with pyogenic spondylodiscitis underwent PPSF followed by PEDL in our department. Biopsy specimens were examined for microorganisms and evaluated histopathologically. Clinical outcomes were assessed by physical examination, routine serological testing, visual analogue scale (VAS), Oswestry Disability Index (ODI), and imaging studies. Results All operations were successful, with no severe surgical complications in any patient and excellent incision healing. Causative bacteria were identified in most cases; Staphylococcus aureus was the most prevalent. The mean follow-up was 25.0 ± 3.8 (range: 20–32) months. Inflammatory markers showed that infection was controlled. The VAS and ODI improved significantly. At the last follow-up, magnetic resonance imaging showed that the infected lesions had disappeared. Conclusion PEDL supplementing PPSF may be useful for patients with single-level lumbar pyogenic spondylodiscitis, as it is minimally invasive, especially for patients who cannot undergo conventional open surgery due to poor health or advanced age.