Trends in the early care of infants with myelomeningocele in the United States 2012-2018.

PURPOSE: The early care of children with spina bifida has changed with the increasing availability of fetal surgery and evidence that fetal repair improves the long-term outcomes of children with myelomeningocele. We sought to determine current trends in the prevalence and early care of children with myelomeningocele using a national administrative database. METHODS: This is a retrospective, cross-sectional cohort study of infants with spina bifida admitted within the first 28 days of life using the 2012-2018 Healthcare Cost and Utilization Project National Inpatient Database. Patients with spina bifida were identified by ICD code and stratified into a cohort with a coded neonatal repair of the defect and those without a coded repair. This database had no identifier specific for fetal surgery, but it is likely that a substantial number of infants without a coded repair had fetal surgery. RESULTS: We identified 5,090 patients with a coded repair and 5,715 without a coded repair. The overall prevalence of spina bifida was 3.94 per 10,000 live births. The percentage of patients without neonatal repair increased during the study period compared to those with repair (p = 0.0002). The cohort without neonatal repair had a higher risk of death (p < 0.001), prematurity (p < 0.001), and low birth weight (p < 0.001). More shunts were placed in patients who underwent neonatal repair (p < 0.001). Patients without neonatal repair were less likely to have public insurance (p = 0.0052) and more likely to reside in zip codes within the highest income quartile (p = 0.0002). CONCLUSIONS: The prevalence of spina bifida from 2012 to 2018 was 3.94 per 10,000 live births, with an increasing number of patients without neonatal repair of the defect, suggesting increased utilization of fetal surgery. Patients without neonatal repair had a higher risk of death, prematurity, and low birth weight but were more likely to have commercial insurance and reside in high-income zip codes.

Symptomatic Dermal Inclusion Cysts in Infants following Fetal Surgery for Myelomeningocele: Report of Two Cases and Review of the Literature.

INTRODUCTION: It remains unclear if fetal repair of myelomeningocele (MM) is associated with a greater risk of developing symptomatic dermal inclusion cysts (ICs) at the neural placode. We report two infants treated with fetal surgery who developed symptomatic IC at less than 1 year of age, and we discuss the current literature on symptomatic IC in children with MM. CASE PRESENTATION: Two infants underwent fetal MM repair at 24 weeks of gestational age. Case 1 was born at 30 weeks and had two revisions of the MM wound early in life. At 8 months of age, the patient presented with meningismus and imaging findings of an IC, which was resected at the time of presentation. At 3 years of age, this patient was found to have recurrence of the IC after presenting with worsening bladder function and underwent repeat debulking with no recurrence at 6 years of age. Case 2 was born at 32 weeks of gestational age with uncomplicated recovery. At 8 months of age, the patient presented with irritability and fullness at the lumbar repair site. Imaging showed a large IC with restricted diffusion and extension into the subcutaneous tissue; this was resected completely at the time of presentation, see intraoperative photographs. There has been no sign of recurrence at age of 15 months. CONCLUSIONS: Careful monitoring for IC in infancy in MM patients who have had fetal surgery is recommended.

Preoperative Thoracic Spine Magnetic Resonance Imaging for Spinal Cord Stimulation: Should Such a Recommendation Be an Absolute Requirement?

OBJECTIVE: Current published guidelines recommend advanced imaging, specifically, thoracic magnetic resonance imaging (MRI), prior to implantation of epidural paddle spinal cord stimulator (SCS) leads. Preoperative imaging may affect surgical approach to minimize risk of complications. We aimed to assess the impact of preoperative thoracic MRI on surgical planning in a large series of surgical paddle SCS lead placements in a real-world setting. MATERIALS AND METHODS: This is a retrospective study of a prospectively maintained data base of 160 patients treated by SCS with awake thoracic surgical paddle lead placement in a single academic functional neurosurgery center from 2013 to 2021. All patients had a thoracic MRI prior to implantation. Abnormal MRI findings were reviewed to determine their potential impact on the safety of surgical paddle lead placement. A minor impact was defined as anatomical areas to avoid with paddle lead placement. Major impacts included significant deviations from standard approach to electrode placement. RESULTS: None of the 160 patients had signs or symptoms referable to thoracic spine pathology prior to lead implant. Sixty-seven had abnormal thoracic MRI findings, and 36 had abnormal MRI findings that impacted surgical planning. Thirty-one patients had MRI findings with minor impact. Five patients (more than 3%) had findings with major impact. CONCLUSIONS: This is the largest case series assessing the impact of preoperative thoracic MRI on surgical planning for patients undergoing paddle SCS placement. Twenty-two percent of patients had MRI findings that impacted surgical planning with 3% requiring additional surgical decompression for safe paddle lead placement. Without advanced imaging to inform surgical planning, unnecessary risk may have been placed on these patients. Although such imaging has been recommended by consensus committees in published guidelines, our study is the first to present a large institutional experience of real-world data that demonstrates its importance.

Categorization of Adverse Events Reported to the FDA Pertaining to Tibia Intramedullary Nailing.

OpenFDA is an open access database maintained by the United States Food and Drug Administration (FDA) that we queried for adverse events (AEs) related to product devices used during tibia intramedullary nailing (IMN) procedures. There was a total of 1,799 reports pertaining to tibial intramedullary nailing from 1996 to 2020. Causes included infection (451), nonunion (380), intraoperative issue (343), painful hardware (234), implant fracture (195), other (68), loosening (35), surgeon error (24), packing problem (24), patient injury (12), expiration (12), contamination (11) and allergic reaction (10). The total number of events increased in 2016 and 2018, which was attributed to 510k approval for Stryker. Of the Aes, 1,400 resulted in an injury to the patient. In total, 78% occurred in the post-operative period, and 68% required additional surgery. Most incidents related to tibia IMNs result in injury and require additional surgery. When new products are released, AEs occur quickly and in bulk. (Journal of Surgical Orthopaedic Advances 31(4):237-241, 2022).

Application of Delta T1 maps for quantitative and objective assessment of extent of resection and survival prediction in glioblastoma.

Background and Objectives: Gross-total resection (GTR) and low residual tumor volume (RTV) have been associated with increased survival in glioblastoma. Largely due to the subjectivity involved, the determination of GTR and RTV remains difficult in the postoperative setting. In response, the objective of this study is to evaluate the clinical efficacy of an easy-to-use MRI metric, called delta T1 (dT1), to quantify extent of resection (EOR) and RTV, in comparison to radiologist impression, to predict overall survival (OS) in glioblastoma patients. Methods: 59 patients who underwent resection of glioblastoma were retrospectively identified. Delta T1 (dT1) images, automatically created from the difference between calibrated post- and pre-contrast T1-weighted images, were used to quantify EOR and RTV. Kaplan-Meier survival estimates were determined for EOR categories, an RTV cutoff of 5cm3 and radiologist interpretation of EOR. Multivariate Cox proportional hazard regression analysis was used to evaluate RTV and EOR along with effects related to sex, KPS, MGMT, and age on OS. Results: Kaplan-Meier analysis revealed a statistically significant difference in median OS for a dT1-determined RTV cutoff of 5 cm3 (P=.0024, HR=2.18 (1.232-3.856)), but not for radiological impression (P=0.666) or dT1-determined EOR (P=0.0803), which was limited to a comparison between partial and subtotal resections. Furthermore, when covariates were accounted for in multivariate Cox regression, significant differences in OS were retained for dT1-determined RTV. Additionally, a significantly strong yet short-term effect of MGMT methylation status on OS was revealed for each RTV and EOR model. Conclusion: The utility of dT1 maps to quantify EOR and RTV in glioblastoma and predict survival, suggests an emerging role for dT1s with relevance for intraoperative MRI, neuro-navigation and postoperative disease surveillance.

A useful tool for retained washer retrieval when removing iliosacral screws.

Iliosacral screw removal is occasionally necessary during index or revision pelvic ring surgery. This procedure can necessitate a two-step process: screw removal followed by retained washer removal. On attempted removal of the screw-washer complex, the washer will not uncommonly dissociate itself from the screw. Its retrieval can be challenging, add unnecessary operative time, and result in larger incisions and increased soft tissue disruptions. This article introduces a simple technique for retained washer retrieval when removing or exchanging iliosacral screws. This technique involves an "interference fit" between the retained washer and a screw or tap of larger diameter, allowing for reliable and simple washer extraction. Advantages of this technique include removal through the same soft tissue tract as initial screw insertion and subsequent screw removal. It also obviates the need for introduction of various clamps to extract the washer, which can result in soft tissue injury and increased reliance on fluoroscopy.

Magnetic resonance imaging-guided laser interstitial thermal therapy for complete corpus callosotomy: technique and 1-year outcomes. Patient series.

BACKGROUND: Magnetic resonance imaging (MRI)-guided stereotactic laser interstitial thermal therapy (LITT) is a minimally invasive technique that has been described for the treatment of certain forms of epilepsy through partial or complete callosotomy, with few cases describing single-stage complete LITT callosotomy. The authors aimed to demonstrate this technique's feasibility and efficacy through description of the technique and 1-year outcomes in 3 cases of single-stage complete LITT callosotomy in patients with anatomically normal corpa callosa (CCs). OBSERVATIONS: The patients were aged 14-27 years and experienced atonic seizures. Completeness of callosotomy was determined from MRI scans obtained >3 months after LITT procedures. The estimated ablations of the CC were 94%, 89%, and 100%, respectively. The second patient had a catheter breach the lateral ventricle, resulting in the lowest estimated percentage of ablation in this series (89%), with minimal atonic seizure reduction. The first patient had significant reduction in atonic seizure frequency, and the third patient had complete resolution of atonic seizures. None of the patients experienced any long-term complications. Intensive care length of stay was 1 night for each patient, and total length of stay was between 2 and 7 nights. Postoperative follow-up was between 14 and 18 months. LESSONS: Complete laser callosotomy is achievable and is a safe alternative to microsurgical or endoscopic approaches.

Use of a modified retrograde femoral rod as a custom length tibiotalocalcaneal nail.

There has been increasing interest in the use of hindfoot tibiotalocalcaneal (TTC) nails to treat ankle and distal tibia fractures in select patient populations who are at increased risk for soft tissue complications after open reduction and internal fixation with traditional plate and screw constructs. We describe a technique which uses a retrograde femoral nail as a custom length TTC nail. By using a simple modification of the insertion jig, we are able to achieve safe screw trajectories that allow for robust distal interlocking fixation. Review of implantation in multiple cadaveric specimens demonstrates safe placement of distal screw fixation in the calcaneus without risking injury to important neurovascular structures. Because of the 2-cm incremental length options of this particular device, we are able to achieve supraisthmal fixation in the tibia which may lessen the risk for fracture that may be more likely to occur at the tip of a short TTC nail option. Furthermore, a custom length TTC nail is more costly and also requires advanced notice to acquire for the case; retrograde femoral nails are readily stocked and accessible at our level 1 trauma center. This TTC technique offers anatomic restoration while also offering convenience, instrument familiarity, cost savings, and increased patient safety.