case_images: PMC6526918_01
case_images: Anteroposterior radiographs of patients with failed dural puncture during needle-through-needle technique for combined spinal-epidural anesthesia.. Notes: Images showing excessive paramedian deviation of the epidural needle and the wrong passage of the spinal needle through Tuohy curve in cases 1 (A), 2 (B), and 3 (C).
case_images: jpr-12-1615Fig1.jpg
case_images: PMC6526918_01_jpr-12-1615Fig1.jpg
case_images: f1-jpr-12-1615
case_images: Moreover, spinal needles exited epidural needles not through back holes, but through the Tuohy curves as presented in Figure 1(A-C).
case_images: Anteroposterior radiograph showing the spinal needle being in touch with the superior articular process of the fifth lumbar vertebra in case 4.
case_images: jpr-12-1615Fig2.jpg
case_images: PMC6526918_01_jpr-12-1615Fig2.jpg
case_images: f2-jpr-12-1615
case_images: The spinal needle was in contact with the superior articular process of the fifth lumbar vertebra, which was confirmed by C-arm radiography (Figure 2).