Editorial
Copyright ©2014 Baishideng Publishing Group Inc.
World J Clin Cases. Sep 16, 2014; 2(9): 402-408
Published online Sep 16, 2014. doi: 10.12998/wjcc.v2.i9.402
Figure 1
Figure 1 Dynamic X-ray. A: Patient treated for L3-L4 disc herniation (without instability at the dynamic X-rays) with an interspinous posterior device (IPD) implant. The Dynamic X-ray in extension showed a metameric instability at L3-L4 developed 1 year after an IPD implantation; B: Dynamic X-ray in flexion that showed an increase in L3-L4 slipping, developing a I° grade spondylolisthesis, due to the IPD implantation. The patient underwent revision surgery with removal of the IPD, decompressive laminectomy and L3-L4 stabilization with screws and rods.
Figure 2
Figure 2 Dislocation of the L3-L4 interspinous posterior device in a patient with double level implant. The patient underwent revision surgery with removal of both interspinous posterior devices followed by decompression and stabilization with screws and rods.