PMC4854031_01
Preoperative plain films
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F1
Computed tomography (CT) and plain radiographics indicated pseudarthrosis of his prior construct [Figure 1].
Intraoperative intracranial pressure monitoring
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F2
Trendelenburg position. The patient's ICP gradually decreased over the next 10 min and stabilized at 14-15 mm Hg [Figure 2]; therefore, the decision was made to proceed with surgery. During the exposure and removal of scar in preparation for the PSO, a durotomy occurred on the right side (approximately 5 h into the procedure) [Figure 2].
Three month postoperative plain films
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F3
His postoperative pelvic incidence was 58.5 , his pelvic tilt was 29 , and his sagittal vertical axis (SVA) was 13.7 cm [Figure 3].