Fig. 3From: The effectiveness of a percutaneous endoscopic approach in a patient with psoas and epidural abscess accompanied by pyogenic spondylitis: a case reportPlain radiographs show the degenerative change of the lumbar vertebra. Posteroanterior plain radiographs a before treatment and b at the final follow-up show the progression of degenerative change between the third and fourth lumbar vertebraBack to article page