Shawyon Baygani, Kristin Zieles, and Andrew Jea
The purpose of this study is to determine if the preoperative Pediatric Quality of Life Inventory (PedsQL) score is predictive of short- and intermediate-term PedsQL outcomes following Chiari decompression surgery. The utility of preoperative patient-reported outcomes (PROs) in predicting pain, opioid consumption, and long-term PROs has been demonstrated in adult spine surgery. To the best of the authors’ knowledge, however, there is currently no widely accepted tool to predict short-, intermediate-, or long-term outcomes after pediatric Chiari decompression surgery.
A prospectively maintained database was retrospectively reviewed. Patients who had undergone first-time decompression for symptomatic Chiari malformation were identified and grouped according to their preoperative PedsQL scores: mild disability (score 80–100), moderate disability (score 60–79), and severe disability (score < 60). PedsQL scores at the 6-week, 3-month, and/or 6-month follow-ups were collected. Preoperative PedsQL subgroups were tested for an association with demographic and perioperative characteristics using one-way ANOVA or chi-square analysis. Preoperative PedsQL subgroups were tested for an association with improvements in short- and intermediate-term PedsQL scores using one-way ANOVA and a paired Wilcoxon signed-rank test controlling for statistically different demographic characteristics when appropriate.
A total of 87 patients were included in this analysis. According to their preoperative PedsQL scores, 28% of patients had mild disability, 40% had moderate disability, and 32% had severe disability. There was a significant difference in the prevalence of comorbidities (p = 0.009) and the presenting symptoms of headaches (p = 0.032) and myelopathy (p = 0.047) among the subgroups; however, in terms of other demographic or operative factors, there was no significant difference. Patients with greater preoperative disability demonstrated statistically significantly lower PedsQL scores at all postoperative time points, except in terms of the parent-reported PedsQL at 6 months after surgery (p = 0.195). Patients with severe disability demonstrated statistically significantly greater improvements (compared to preoperative scores) in PedsQL scores at all time points after surgery, except in terms of the 6-week and 6-month PROs and the 6-month parent-reported outcomes (p = 0.068, 0.483, and 0.076, respectively).
Patients with severe disability, as assessed by the PedsQL, had lower absolute PedsQL scores at all time points after surgery but greater improvement in short- and intermediate-term PROs. The authors conclude that the PedsQL is an efficient and accurate tool that can quickly assess patient disability in the preoperative period and predict both short- and intermediate-term surgical outcomes.
C-1 lateral mass screw
Jonathan N. Sellin, Aditya Vedantam, Thomas G. Luerssen, and Andrew Jea
The complication profile of epidural triamcinolone acetonide use during lumbar decompression surgery is not known. However, isolated reports of increased risk of delayed CSF leakage with the use of triamcinolone acetonide in adult spinal surgery patients have been published. The purpose of this study was to determine the safety of epidural triamcinolone acetonide use in conjunction with lumbar decompression surgery in pediatric patients.
The medical records of all patients who underwent lumbar decompression surgery with or without discectomy between July 1, 2007, and July 31, 2015, were retrospectively reviewed.
During the study period, 58 patients underwent 59 spine procedures at Texas Children's Hospital. There were 33 female and 25 male patients. The mean age at surgery was 16.5 years (range 12–24 years). Patients were followed for an average of 38.2 months (range 4–97 months). Triamcinolone acetonide was used in 28 (of 35 total) cases of discectomy; there were no cases of delayed symptomatic CSF leaks (0%) in the minimally invasive and open discectomies. On the other hand, triamcinolone acetonide was used in 14 (of 24 total) cases of multilevel laminectomy, among which there were 10 delayed CSF leaks (71.4%) requiring treatment. The use of triamcinolone acetonide in patients who underwent multilevel laminectomy was significantly associated with an increased risk of delayed CSF leaks or pseudomeningoceles (Fisher's exact test, p < 0.001).
There was an unacceptable incidence of delayed postoperative CSF leaks when epidural triamcinolone acetonide was used in patients who underwent multilevel laminectomy.
Detection of important venous collaterals by computed tomography venogram in multisutural synostosis
Case report and review of the literature
Merdas Al-Otibi, Andrew Jea, and Abhaya V. Kulkarni
✓The authors describe the novel use of computed tomography (CT) venography in the preoperative evaluation of a child with Crouzon syndrome who was being considered for Chiari decompression. This 18-month-old girl presented with hydrocephalus (treated with a ventriculoperitoneal shunt) and persistent symptomatic Chiari malformation and associated syrinx. A CT venogram was obtained because of the well-described relationship between multisutural craniosynostosis and abnormal intracranial-to-extracranial venous drainage. The CT venogram showed widely dilated vertebral and paravertebral veins located in the paraspinous muscles of the craniocervical junction. Because of the risk of massive intraoperative blood loss and/or occlusion of important collateral draining veins leading to intracranial venous hypertension and intractably raised intracranial pressure, the planned posterior fossa decompression was not performed. Computed tomography venography is an easily obtained study that we recommend in the evaluation of children with multisutural craniosynostosis prior to cranial surgical interventions.