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Ogura R, Fujiwara H, Natsumeda M, Hiraishi T, Sano M, Oishi M. Preoperative interactive virtual simulation applying three-dimensional multifusion images using a haptic device for lumbosacral lipoma. Childs Nerv Syst 2024; 40:1129-1136. [PMID: 37987859 DOI: 10.1007/s00381-023-06234-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/16/2023] [Indexed: 11/22/2023]
Abstract
PURPOSE Untethering surgery for lumbosacral lipoma is a preventive procedure, and avoidance of complications and good long-term outcomes are required. We introduced presurgical interactive virtual simulation (IVS) applying three-dimensional multifusion images using a haptic device aimed at improving operative outcomes. METHODS Fourteen patients with newly diagnosed lumbosacral lipoma were recruited and underwent preoperative IVS. The median age at surgery was 8 months. A three-dimensional image analysis system was used to extract and fuse structures necessary for surgery, such as the lipoma, spinal cord and skin, from CT and MRI, and create three-dimensional multifusion images. The created images were individually converted to standard triangulated language format and loaded onto a workstation (Geomagic freeform™) that could be freely transformed, and the laminectomy range and lipoma extraction procedure were examined. Presurgical IVS was performed, and the actual surgery was performed. RESULTS The disease types were dorsal, caudal, lipomyelomeningocele, transitional, and filum in 5, 5, 2, 1, and 1 patients, respectively. The surgical procedure and extent of the laminectomy were as planned for all patients. Resection of the lipomas tended to be less than expected preoperatively because of positive reactions on intraoperative monitoring. No postoperative complications were observed. The median postoperative follow-up period was 29 months, and there were no reoperations during the observation period. CONCLUSIONS Although there are various types of lumbosacral lipoma, surgery can be safely performed by performing presurgical IVS. The short-term course is good; however, long-term follow-up is necessary for the appearance of neurological symptoms associated with growth and re-tethering.
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Affiliation(s)
- Ryosuke Ogura
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi, Chuo-ku, Niigata, 951-8585, Japan.
| | - Hidemoto Fujiwara
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi, Chuo-ku, Niigata, 951-8585, Japan
| | - Manabu Natsumeda
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi, Chuo-ku, Niigata, 951-8585, Japan
| | - Tetsuya Hiraishi
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi, Chuo-ku, Niigata, 951-8585, Japan
| | - Masakazu Sano
- Department of Neurosurgery, Toyama Prefectural Central Hospital, Toyama, Japan
| | - Makoto Oishi
- Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi, Chuo-ku, Niigata, 951-8585, Japan
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Siroya HL, Madhugiri VS, Shukla DP, Uppar AM, Bhagavatula ID. Chaotic lipoma with proximal syrinx -a (not so) rare variant - review of the literature, possible embryology and management. Br J Neurosurg 2023; 37:1514-1522. [PMID: 34802355 DOI: 10.1080/02688697.2021.2005777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/09/2021] [Indexed: 10/19/2022]
Abstract
Chaotic lipomas are an extremely rare variant of spinal lipomas. This entity was first defined in 2009 by Pang and colleagues. Not much has been written about this variant. Its characteristic is the haphazard distribution of DREZ (Dorsal root entry zone), nerve roots and placode-lipoma interface. Thus complete/near-total excision of this lesion is quite difficult. We describe a case of chaotic spinal lipoma and elucidate the challenges faced in the management of this entity and review the literature. We performed a thorough systematic review with the keyword 'chaotic', 'Lipomyelomeningocele', 'Complex Lipomyelomeningocele', 'LMMC', 'Lumbar lipoma', 'spinal lipoma' in the google scholar and PUBMED data system for indexed literature on the above topic with no particular time frame. The studies quoted range earliest from 1970 till currently. Additional potential relevant articles were further retrieved through a manual search of references from original reports. Out of 42 studies, a total of 21 publications were selected which could have encountered a chaotic variant, but due to the term introduced only recently in 2009, may have been described differently. Studies encompassing true lipomeningomyelocele were excluded from our review. What we found out? Chaotic lipoma may not be a new entity. The scarce description in literature may be in part due to non-introduction and unclear description of this term earlier. The management of this variant is particularly challenging with basic principles remaining the same. Meticulous near-total excision and placode-lipoma construct are the major obstacles.
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Affiliation(s)
- Hardik Lalit Siroya
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru, India
| | - Venkatesh S Madhugiri
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru, India
| | - Dhaval Premchand Shukla
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru, India
| | - Alok Mohan Uppar
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru, India
| | - Indira Devi Bhagavatula
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru, India
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Lin CM, Oglesbee M, Knudsen D, Smith TW. Ischemic myelomalacia and closed spinal dysraphism in multiple finishing swine. Vet Pathol 2023; 60:258-266. [PMID: 36524748 DOI: 10.1177/03009858221140822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Ischemic myelomalacia secondary to fibrocartilaginous emboli (FCE) is an idiopathic disease in humans and animals. On the other hand, congenital spinal cord malformations result from neural tube defects in fetal development (ie, spinal dysraphism), with structural anomalies referred to collectively as myelodysplasia. Spinal dysraphisms are frequently accompanied by skin and vertebral abnormalities because of the embryogenic relationship. In this observational case study, we report the pathologic findings of 13, 18- to 24-weeks-old pigs from a large conventional operation that presented with acute paraparesis. Ischemic myelomalacia secondary to FCE was observed in 5 of 13 examined pigs. Congenital spinal cord malformations located between the caudal thoracic and sacral spinal cord were identified in 7 pigs, with structural abnormalities that ranged from diplomyelia/split cord malformation to segmental spinal dysgenesis (myelodysplasia) to caudal agenesis. Concurrent myelomalacia and congenital spinal cord malformations in the same or different sites were noted in 2 pigs. No spinal lesion was observed in 3 pigs. Although gross vertebral abnormalities were not observed herein, intervertebral instability due to minor defects in the articular facets, as well as other unidentified factors, is suspected to contribute high incidence of FCE. It is likely that these congenital malformations were previously underdiagnosed or are possibly new conditions associated with continuous inbreeding and genetic improvement in the modern swine industry.
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Affiliation(s)
- Chun-Ming Lin
- South Dakota State University, Brookings, SD
- Charles River Laboratories, Spencerville, OH
| | | | | | - Thomas W Smith
- University of Massachusetts Chan Medical School, Worcester, MA
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Xu K, He J, Wang L. A systematic review and meta-analysis of minimally invasive surgery in children with occult tethered cord syndrome. Transl Pediatr 2022; 11:403-410. [PMID: 35378968 PMCID: PMC8976679 DOI: 10.21037/tp-22-72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 03/15/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND At present, the surgical treatment of occult tethered cord syndrome (OTCS) in children is mostly two types of minimally invasive surgery: filum terminalis laxity or filum terminalectomy. The clinical efficacy and safety of minimally invasive treatment and conservative treatment are still unclear. Therefore, this study will use the advantages of systematic review and meta-analysis to evaluate the objectivity, and explore the effect of minimally invasive surgery on children with occult tethered cord syndrome. METHODS A computer search was used to search PubMed, Embase, CNKI, Wanfang Database and other literature search websites about the randomized controlled trials (RCTs) of minimally invasive surgery in children with occult tethered cord syndrome and spinal lipoma. Professional journals were manually searched to avoid omissions. The search keywords were: occult myelolipoma, occult tethered cord syndrome, surgical treatment of tethered cord syndrome, occult tethered cord syndrome. RESULTS A total of 6 relevant literatures that could be used for meta-analysis were selected. A total of 425 subjects were included in the article, of which 132 were treated conservatively and 293 were treated surgically. The heterogeneity detection test statistics of the included studies were Chi2 (Chi-squared test) =8.18, df (degree of freedom) =5, I2=39%<50%, Z=2.53, and the homogeneity of the included studies was good. The number of unimproved cases under conservative treatment was 40, accounting for 30.30%; the number of unimproved cases under surgical treatment was 33, accounting for 11.26%, and the total unimproved rate of the two groups accounted for 17.17%. The unimproved rate of the experimental group was significantly lower than that of the control group, and the difference was statistically significant (P=0.01). The results of bias analysis showed that there was no significant bias in the literature included in this study. DISCUSSION Meta-analysis results confirmed that minimally invasive surgery has a significant effect on the treatment of occult children with tethered cord syndrome. However, due to the small sample size of the included literature, further evaluation of the treatment risk is required.
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Affiliation(s)
- Ketao Xu
- Pediatric Surgery, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Jianhua He
- Pediatric Surgery, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Leibo Wang
- Pediatric Surgery, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
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Iihara K, Saito N, Suzuki M, Date I, Fujii Y, Houkin K, Inoue T, Iwama T, Kawamata T, Kim P, Kinouchi H, Kishima H, Kohmura E, Kurisu K, Maruyama K, Matsumaru Y, Mikuni N, Miyamoto S, Morita A, Nakase H, Narita Y, Nishikawa R, Nozaki K, Ogasawara K, Ohata K, Sakai N, Sakamoto H, Shiokawa Y, Takahashi JC, Ueki K, Wakabayashi T, Yoshimoto K, Arai H, Tominaga T. The Japan Neurosurgical Database: Statistics Update 2018 and 2019. Neurol Med Chir (Tokyo) 2021; 61:675-710. [PMID: 34732592 PMCID: PMC8666296 DOI: 10.2176/nmc.st.2021-0254] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Each year, the Japan Neurosurgical Society (JNS) reports up-to-date statistics from the Japan Neurosurgical Database regarding case volume, patient demographics, and in-hospital outcomes of the overall cohort and neurosurgical subgroup according to the major classifications of main diagnosis. We hereby report patient demographics, in-hospital mortality, length of hospital stay, purpose of admission, number of medical management, direct surgery, endovascular treatment, and radiosurgery of the patients based on the major classifications and/or main diagnosis registered in 2018 and 2019 in the overall cohort (523283 and 571143 patients, respectively) and neurosurgical subgroup (177184 and 191595 patients, respectively). The patient demographics, disease severity, proportion of purpose of admission (e.g., operation, 33.9-33.5%) and emergent admission (68.4-67.8%), and in-hospital mortality (e.g., cerebrovascular diseases, 6.3-6.5%; brain tumor, 3.1-3%; and neurotrauma, 4.3%) in the overall cohort were comparable between 2018 and 2019. In total, 207783 and 225217 neurosurgical procedures were performed in the neurosurgical subgroup in 2018 and 2019, respectively, of which endovascular treatment comprised 19.1% and 20.3%, respectively. Neurosurgical management of chronic subdural hematoma (19.4-18.9%) and cerebral aneurysm (15.4-14.8%) was most common. Notably, the proportion of management of ischemic stroke/transient ischemic attack, including recombinant tissue plasminogen activator infusion and endovascular acute reperfusion therapy, increased from 7.5% in 2018 to 8.8% in 2019. The JNS statistical update represents a critical resource for the lay public, policy makers, media professionals, neurosurgeons, healthcare administrators, researchers, health advocates, and others seeking the best available data on neurosurgical practice.
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Affiliation(s)
- Koji Iihara
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
| | | | - Michiyasu Suzuki
- Department of Advanced ThermoNeuroBiology, Yamaguchi University Graduate School of Medicine
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine
| | - Yukihiko Fujii
- Department of Neurosurgery, Brain Research Institute, Niigata University
| | - Kiyohiro Houkin
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine
| | - Tooru Inoue
- Department of Neurosurgery, Fukuoka University School of Medicine
| | - Toru Iwama
- Department of Neurosurgery, Gifu University School of Medicine
| | | | - Phyo Kim
- Department of Neurologic Surgery, Utsunomiya Neurospine Center
| | - Hiroyuki Kinouchi
- Department of Neurosurgery, University of Yamanashi Interdisciplinary Graduate School of Medicine
| | - Haruhiko Kishima
- Department of Neurosurgery, Osaka University Graduate School of Medicine
| | - Eiji Kohmura
- Kinki Central Hospital of the Mutual Aid Association of Public School Teachers
| | - Kaoru Kurisu
- Department of Neurosurgery, Chugoku Rosai Hospital
| | - Keisuke Maruyama
- Department of Neurosurgery, Kyorin University, School of Medicine
| | - Yuji Matsumaru
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba
| | | | - Susumu Miyamoto
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
| | - Akio Morita
- Department of Neurological Surgery, Nippon Medical School
| | | | - Yoshitaka Narita
- Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital
| | - Ryo Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical Science
| | | | | | - Nobuyuki Sakai
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Hiroaki Sakamoto
- Department of Pediatric Neurosurgery, Osaka City General Hospital
| | | | - Jun C Takahashi
- Department of Neurosurgery, Kindai University Faculty of Medicine
| | - Keisuke Ueki
- Department of Neurologic Surgery, Dokkyo Medical University
| | | | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University
| | | | - Teiji Tominaga
- Department of Neurosurgery, Tohoku University Graduate School of Medicine
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Expression Patterns of Hypoxia-Inducible Factors, Proinflammatory, and Neuroprotective Cytokines in Neuroepithelial Tissues of Lumbar Spinal Lipomas-A Pilot Study. World Neurosurg 2020; 141:e633-e644. [PMID: 32522652 DOI: 10.1016/j.wneu.2020.05.256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Lumbosacral lipomas (LSLs), one form of closed spinal dysraphism, are congenital disorders of the terminal spinal cord (SC). Delayed neurologic deterioration often occurs in the subsequent developmental course of the patient. Identifying the cellular and molecular factors underlying the progressive damage to neural structures is a prerequisite for developing treatment strategies for LSLs. METHODS Nine LSL specimens obtained from the SC/lipoma interface during surgical resection were examined. Normal SC tissue served as a control. Clinical characteristics were obtained, and spinal magnetic resonance imaging was re-evaluated. Cellular marker profiles were established. Immunoreactivity (IR) of hypoxia-inducible factor 1α (HIF-1α/-2α), erythropoietin (Epo)/erythropoietin receptor (EpoR), interleukin-1β (IL-1β)/IL-1R1, and tumor necrosis factor α/tumor necrosis factor receptor type 1 were analyzed qualitatively and semiquantitatively by densitometry. Colabeling with cellular markers was determined by multifluorescence labeling. Cytokines were further analyzed by real-time reverse transcription polymerase chain reaction. RESULTS LSL specimens showed significant gliosis. HIF-1α/HIF-2α-IR and Epo/Epo-IR were found at significantly higher levels in the LSL specimens, as were IL-1β-/IL-1β receptor type 1 (IL1-R1) and tumor necrosis factor α/tumor necrosis factor receptor type 1 (P < 0.001), than were the controls. At the messenger RNA level, cytokines appeared partially induced. Double immunofluorescence labeling confirmed the costaining of these factors with inflammatory and glial markers. CONCLUSIONS The expression of hypoxia-related and inflammatory mediators was shown for the first time in LSL specimens. These factors might play a role in multifactorial secondary lesion cascades underlying further damage to the neural placode in closed dysraphism.
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Rhodes RH. Congenital Spinal Lipomatous Malformations. Part 1. Spinal Lipomas, Lipomyeloceles, and Lipomyelomeningoceles. Fetal Pediatr Pathol 2020; 39:194-245. [PMID: 31342816 DOI: 10.1080/15513815.2019.1641859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Lumbosacral spinal lipomas and lipomyeloceles are usually identified in early childhood. Terminology, histopathology, and diagnosis for these malformations can be confusing. Materials and Methods: This is a PubMed review with comparison of embryology, gross, and histopathology, and reporting requisites for these and related closed spinal malformations. Results: The spinal lipoma group (congenital spinal lipomatous malformations) includes subcutaneous, transdural, intradural, and noncontiguous malformations stretching through the entire lower spinal region. This lipomyelocele trajectory overlaps the embryonic tail's caudal eminence. Histopathologically, the lipomyelocele spectrum is a heterogeneous, stereotypical set of findings encountered from dermis to spinal cord. Diagnosis requires detailed correlation of images, intraoperative inspection, and histopathology. Conclusions: Appropriate terminology and clinicopathologic correlation to arrive at a diagnosis is a critical activity shared by pathologist and clinician. Prognostic and management differences depend on specific diagnoses. Familial and genetic influences play little if any role in patient management in closed spinal malformations.
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Affiliation(s)
- Roy H Rhodes
- LSUHSC, Pathology, New Orleans, Louisiana, USA.,Rutgers Robert Wood Johnson Medical School, Pathology, New Brunswick, New Jersey, USA
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Acute presentations of intradural lipomas: case reports and a review of the literature. BMC Neurol 2019; 19:189. [PMID: 31395022 PMCID: PMC6688213 DOI: 10.1186/s12883-019-1413-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 07/25/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Lumbosacral lipomas (LLs) may remain asymptomatic or lead to progressive neurological deterioration. However, sudden neurological deterioration is a rare and severe event. Herein, we report rare occurrences of sudden clinical deterioration in two previously asymptomatic children harbouring intradural LLs without dermal sinus tracts or signs of occult dysraphism. A review of the pertinent literature is also included. CASE PRESENTATION One child exhibited acute deterioration because of an epidural abscess associated with a filar lipoma without a sinus tract (probably caused by haematogenous spreading from a respiratory tract multiple infection), and the other child exhibited acute deterioration because of a very large, holocord syringomyelia-like cyst associated with a small conus lipoma. Both patients were 4 years old. In case #2, a previously undetected, severe tethered cord (conus at the S3-S4 level) was also present. A complete recovery was attained after an urgent surgical operation in both cases (in addition to targeted antibiotic therapy in case #1). All cases of deterioration in the literature were caused by abscess formation in dermal sinus tracts. CONCLUSIONS Prophylactic surgery may be indicated even in asymptomatic children that have tethered cord and surgically favourable LLs (small dorsal and filar LLs), especially if the conditions are associated with progressive syringomyelia. Similarly, intradural dermal sinus tracts should be regarded as surgery-indicated, even if the conus is in its normal position and the patient is asymptomatic because there is a consistent risk of severe, infection-related complications. Finally, asymptomatic patients with filar LLs and a normally located conus can be candidates for surgery or an accurate clinical and radiological follow-up.
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Conservative and surgical treatment of pediatric asymptomatic lumbosacral lipoma: a meta-analysis. Neurosurg Rev 2016; 41:737-743. [PMID: 27796602 DOI: 10.1007/s10143-016-0796-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/27/2016] [Accepted: 10/21/2016] [Indexed: 10/20/2022]
Abstract
The aim of this study is to compare the outcomes of surgical and conservative treatments of pediatric asymptomatic lumbosacral lipomas, and to address whether the patients can benefit from prophylactic surgeries. The literature reports of surgical and conservative treatments of child asymptomatic lumbosacral lipomas were reviewed and collected, and a meta-analysis of the reports regarding the incidence of sphincter and lower limb dysfunctions was performed. A total of five literatures were collected, containing a total of 403 patients, among which 124 patients received conservative treatments with 32 (25.81%) cases developing neurological dysfunctions during follow-up, and 279 received prophylactic surgical treatments with 30 (10.75%) patients developing neurological dysfunctions in follow-up, the difference being statistically significant (P ≤ 0.05). For pediatric asymptomatic lumbosacral lipomas of the three major subtypes, the limited source of literature so far suggests that prophylactic surgery is superior to conservative strategy in preventing the patients from neurological deterioration. Larger patient cohorts, randomized studies, and longer length of follow-ups are needed for further corroboration.
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May L, Hayward R, Chakraborty A, Franck L, Manzotti G, Wray J, Thompson D. Lack of uniformity in the clinical assessment of children with lipomyelomeningocele: a review of the literature and recommendations for the future. Childs Nerv Syst 2013; 29:961-70. [PMID: 23512293 DOI: 10.1007/s00381-013-2063-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Accepted: 02/25/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVE An objective clinical assessment tool whose accuracy and reproducibility can be validated is essential for the initial evaluation, selection for surgery and surveillance of children with lipomyelomeningocele (LMMC). The aim of this study was to analyse the large number of such tools presently in use and recommend an alternative that could lead to greater uniformity between different series and greater consistency in the assessment of individual patients. METHODS A systematic review of the literature between January 1980 and December 2010 was undertaken and details of how the children in each series were assessed and the degree to which age was taken into account recorded. RESULTS Thirty-six different assessment tools were used in 40 different publications. None was validated in all aspects. Objective measures were used most in urological assessments but rarely in other domains. Age-specific assessments were used in only 10 % of publications. CONCLUSION This study confirmed that the assessment tools for evaluation of children with LMMC are inconsistent, often vague and poorly validated. This compromises the ability of clinicians who care for them to compare studies across centres for both treated and untreated children. We have sought to highlight those criteria which are relevant, measurable and reproducible and which might be combined into an easily applied assessment.
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Affiliation(s)
- Lindy May
- Department of Paediatric Neurosurgery, Great Ormond Street Hospital for Children, NHS Foundation Trust, Great Ormond Street, London, UK.
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Bamba Y, Nonaka M, Nakajima S, Yamasaki M. Three-dimensional reconstructed computed tomography-magnetic resonance fusion image-based preoperative planning for surgical procedures for spinal lipoma or tethered spinal cord after myelomeningocele repair. Neurol Med Chir (Tokyo) 2011; 51:397-402. [PMID: 21613771 DOI: 10.2176/nmc.51.397] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Surgical procedures for spinal lipoma or tethered spinal cord after myelomeningocele (MMC) repair are often difficult and complicated, because the anatomical structures can be deformed in complex and unpredictable ways. Imaging helps the surgeon understand the patient's spinal anatomy. Whereas two-dimensional images provide only limited information for surgical planning, three-dimensional (3D) reconstructed computed tomography (CT)-magnetic resonance (MR) fusion images produce clearer representations of the spinal regions. Here we describe simple and quick methods for obtaining 3D reconstructed CT-MR fusion images for preoperative planning of surgical procedures using the iPlan(®) cranial (BrainLAB AG, Feldkirchen, Germany) neuronavigation software. 3D CT images of the vertebral bone were combined with heavily T(2)-weighted MR images of the spinal cord, lipoma, cerebrospinal fluid (CSF) space, and nerve root through a process of fusion, segmentation, and reconstruction of the 3D images. We also used our procedure called "Image Overlay" to directly project the 3D reconstructed image onto the body surface using an LED projector. The final reconstructed 3D images took 10-30 minutes to obtain, and provided the surgeon with a representation of the individual pathological structures, so enabled the design of effective surgical plans, even in patients with bony deformity such as scoliosis. None of the 19 patients treated based on our 3D reconstruction method has had neurological complications, except for CSF leakage. This 3D reconstructed imaging method, combined with Image Overlay, improves the visual understanding of complicated surgical situations, and should improve surgical efficiency and outcome.
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Affiliation(s)
- Yohei Bamba
- Department of Neurosurgery, National Hospital Organization Osaka National Hospital, Japan.
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Oi S, Miwa T, Kobayashi M, Ida H. Myeloschisis repair in a premature neonate with a birth weight of 599 g. Pediatr Neurosurg 2011; 47:379-82. [PMID: 22571956 DOI: 10.1159/000337348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Accepted: 02/06/2012] [Indexed: 11/19/2022]
Abstract
This report describes the case of a neonate with myeloschisis weighing 599 g that underwent an operation for spinal cord reconstruction resulting in substantial neuronal functional recovery. At 28 weeks of gestation, oligohydramnios was detected and the female fetus was diagnosed with intrauterine growth retardation. At birth by emergency caesarean section, she showed lumbosacral myeloschisis and complete paralysis of the lower extremities. Surgical repair and spinal cord reconstruction was performed 2 days after birth by closing the neural placode. Total blood loss was only 2 ml. Within 3 months of the operation, lower extremity neurologic function gradually improved down to the level of the knee joint. To our knowledge, this case is the lowest recorded body weight for a neonate with myeloschisis repair at birth, and this further suggests the possibility of improvement of lower extremity neurologic function after birth and surgical reconstruction.
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Affiliation(s)
- Shizuo Oi
- Division of Pediatric Neurosurgery, Jikei University Hospital, Women's and Children's Medical Center, Tokyo, Japan
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