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Tanaka M, Sonawane S, Arataki S, Fujiwara Y, Taoka T, Uotani K, Oda Y, Shinohara K. New Spinal Shortening Technique for Tethered Cord Syndrome: A Technical Note. Medicina (Kaunas) 2023; 60:20. [PMID: 38256281 PMCID: PMC10818319 DOI: 10.3390/medicina60010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/02/2023] [Accepted: 12/12/2023] [Indexed: 01/24/2024]
Abstract
Background and Objectives: To present a new spinal shortening technique for tethered cord syndrome. Tethered cord syndrome (TCS) is a debilitating condition leading to progressive neurological decline. Surgical detethering for TCS is the gold standard of treatment. However, symptomatic retethering of TCS has been reported in 5%-50% of patients after initial release. To solve this problem, posterior spinal shortening osteotomy has been reported. This technique has risks of massive blood loss and neurological deterioration. The authors hereby report a new safe spinal shortening technique for tethered cord syndrome. Materials and Methods: A 31-year-old man with gait disturbance was referred to our hospital. After the delivery of treatment, he underwent surgical untethering of the spinal cord in another hospital. He had hyperreflexia of the Achilles tendon reflex and bilateral muscle weakness of the legs (MMT 3-4). He also had urinary and bowel incontinence, and total sensory loss below L5. An anteroposterior lumbar radiogram indicated partial laminectomy of L3 and L4. Lumbar MRI showed retethering of spinal cord. Results: The patient underwent a new spinal shortening technique for tethered cord syndrome under the guidance of O-arm navigation. First, from the anterior approach, disectomy from T12 to L3 was performed. Second, from the posterior approach, Ponte osteotomy was performed from T12 to L3, shortening the spinal column by 15 mm. The patient was successfully treated surgically. Postoperative lumbar MRI showed that the tension of the spinal cord was released. Manual muscle testing results and the sensory function of the left leg had recovered almost fully upon final follow-up at one year. Conclusions: A retethered spinal cord after initial untethering is difficult to treat. This new spinal shortening technique can represent another good option to release the tension of the spinal cord.
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Affiliation(s)
- Masato Tanaka
- Department of Orthopaedic Surgery, Okayama Rosai Hospital, Okayama 702-8055, Japan; (S.S.); (S.A.); (Y.F.); (T.T.)
| | - Sumeet Sonawane
- Department of Orthopaedic Surgery, Okayama Rosai Hospital, Okayama 702-8055, Japan; (S.S.); (S.A.); (Y.F.); (T.T.)
| | - Shinya Arataki
- Department of Orthopaedic Surgery, Okayama Rosai Hospital, Okayama 702-8055, Japan; (S.S.); (S.A.); (Y.F.); (T.T.)
| | - Yoshihiro Fujiwara
- Department of Orthopaedic Surgery, Okayama Rosai Hospital, Okayama 702-8055, Japan; (S.S.); (S.A.); (Y.F.); (T.T.)
| | - Takuya Taoka
- Department of Orthopaedic Surgery, Okayama Rosai Hospital, Okayama 702-8055, Japan; (S.S.); (S.A.); (Y.F.); (T.T.)
| | - Koji Uotani
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama 700-8558, Japan; (K.U.); (Y.O.); (K.S.)
| | - Yoshiaki Oda
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama 700-8558, Japan; (K.U.); (Y.O.); (K.S.)
| | - Kensuke Shinohara
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama 700-8558, Japan; (K.U.); (Y.O.); (K.S.)
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Bowman RM, Lee JY, Yang J, Kim KH, Wang KC. Myelomeningocele: the evolution of care over the last 50 years. Childs Nerv Syst 2023; 39:2829-2845. [PMID: 37417984 DOI: 10.1007/s00381-023-06057-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 06/22/2023] [Indexed: 07/08/2023]
Abstract
PURPOSE Myelomeningocele (MMC) is one of the representative anomalies in the field of pediatric neurosurgery. During the 50 years of ISPN history, MMC had a tremendous changes in its incidence, clinical management and outcome with advanced understanding of its pathogenesis. We reviewed the changes in MMC during the period. METHODS We reviewed the literature review and collected our experiences. RESULTS During the 50 years, major changes happened in many aspects of MMC including incidence, pathoembryogenesis, folate deficiency, prevention, prenatal diagnosis, mode of delivery, treatment policy with ethical considerations, clinical treatment including fetal surgery, latex allergy, retethering, management outcome, multidisciplinary team approach, and socioeconomic and family issues. CONCLUSIONS There was a great advance in the management and research of MMC during the 50 years. It is a monumental achievement of pediatric neurosurgeons and colleagues of the related fields.
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Affiliation(s)
- Robin M Bowman
- Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago; Neurosurgery Department, Northwestern University, Chicago, IL, USA
| | - Ji Yeoun Lee
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Korea
- Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul, Korea
| | - Jeyul Yang
- Department of Neurosurgery, Myongji Hospital, Goyang, Korea
| | - Kyung Hyun Kim
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Korea
| | - Kyu-Chang Wang
- Center for Rare Cancers, Neuro-oncology Clinic, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang, Kyounggi-do, 10408, Republic of Korea.
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Mualem W, Nathani KR, Durrani S, Zamanian C, Ghaith AK, Michalopoulos GD, Rotter J, Daniels D, Bydon M. Utilizing pre- and postoperative radiological parameters to predict surgical outcomes following untethering for tethered cord syndrome in a pediatric population. J Neurosurg Pediatr 2023; 31:159-168. [PMID: 36461831 DOI: 10.3171/2022.10.peds22459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 10/24/2022] [Indexed: 12/03/2022]
Abstract
OBJECTIVE Tethered cord syndrome (TCS) can lead to significant downstream neurological deficits including gait deterioration, incontinence, and often unexplained chronic low-back pain. Surgical intervention may relieve symptoms, but there are no defined radiological parameters associated with surgical outcomes and functional status. The authors aimed to define pre- and postoperative radiological parameters for assessing surgical outcomes in TCS. METHODS The authors performed a single-center retrospective review of all pediatric patients treated for TCS between 2016 and 2021. Patient baseline characteristics and operative metrics included age, sex, level of conus, level of procedure, tethering pathology, symptoms at presentation, complications, improvement of symptoms, and reoperation rate. MRI measurements included pre- and postoperative anterior canal distance (ACD) and bending angle (BA). RESULTS Thirty-three pediatric patients were identified who underwent untethering of the spinal cord and had pre- and postoperative MRI between 2016 and 2021. The mean patient age was 5.64 ± 5.33 years. Twenty patients (60.60%) were female. Regarding the site of untethering, 31 procedures (93.93%) were performed at the lumbosacral region and 2 (6.06%) were performed at the thoracolumbar region. The conus medullaris was found above L3 in 21.21% of patients. Postoperatively, 18.18% of patients experienced complications, 48.48% showed improvement in their symptoms, and 48.48% were equivocal or had persistent symptoms. The mean preoperative ACD0 (measured from the posterior vertebral body margin [middle] to the anterior margin of the conus medullaris) was 6.15 ± 3.18 mm, the postoperative ACD0 was 2.25 ± 2.72 mm, and the average change in ACD0 was -0.90 ± 1.31 mm. The mean preoperative BA was 26.00° ± 11.56°, the mean postoperative BA was 15.92° ± 9.81°, and the average change in BA was -10.08° ± 8.80°. An optimal cutoff value for preoperative BA to predict reoperation in pediatric patients with complex TCS undergoing surgery was ≥ 31.70° (area under the curve = 0.83). CONCLUSIONS In surgically treated patients with TCS, certain preoperative radiological parameters may be important in predicting postoperative surgical outcomes; these parameters can be evaluated and reported to indicate patients at high risk for complications. Further prospective multicenter research is warranted to offer robust evidence of association of patient outcomes with preoperative radiological parameters in TCS.
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Affiliation(s)
- William Mualem
- 1Mayo Clinic Neuro-Informatics Laboratory and
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - Karim Rizwan Nathani
- 1Mayo Clinic Neuro-Informatics Laboratory and
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - Sulaman Durrani
- 1Mayo Clinic Neuro-Informatics Laboratory and
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - Cameron Zamanian
- 1Mayo Clinic Neuro-Informatics Laboratory and
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - Abdul Karim Ghaith
- 1Mayo Clinic Neuro-Informatics Laboratory and
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - Giorgos D Michalopoulos
- 1Mayo Clinic Neuro-Informatics Laboratory and
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - Juliana Rotter
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - David Daniels
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - Mohamad Bydon
- 1Mayo Clinic Neuro-Informatics Laboratory and
- 2Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
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Abstract
PURPOSE The objective of this retrospective study was to compare the outcomes and associated complication rates in the surgical management of spinal cord lipomas following a change of practice within our institution from partial resection (PR) to near-total/radical resection (NTR). METHODS Twenty-four children underwent surgical treatment for symptomatic spinal cord lipomas between 2009 and 2020. The near-total/radical resection group included 20 patients with spinal cord lipomas and the comparison group included 6 patients with spinal cord lipomas who underwent partial resection. Filar lipomas were excluded. RESULTS The mean age of the patients was 7 years (range 1-14 years). Post-operatively, a higher proportion of NTR patients (17/20, 85%) demonstrated improvement or stabilisation in Necker-Enfants Malades scores compared to PR patients (3/6, 50%) with a mean follow-up of 48 and 108 months respectively. Two patients underwent re-do untethering surgery, both of which initially underwent partial resection surgery. Complication rates did not significantly differ between the two groups. CONCLUSION Our data supports the view that near-total/radical resection should be considered the technique of choice over the conventional method of partial resection for spinal cord lipomas with no significant increase in complication rates.
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Shlobin NA, Yerkes EB, Swaroop VT, Lam S, McLone DG, Bowman RM. Multidisciplinary spina bifida clinic: the Chicago experience. Childs Nerv Syst 2022; 38:1675-1681. [PMID: 35870009 DOI: 10.1007/s00381-022-05594-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/23/2022] [Indexed: 11/03/2022]
Abstract
Open spina bifida (open SB) is the most complex congenital abnormality of the central nervous system compatible with long-term survival. Multidisciplinary care is required to address the effect of this disease on the neurological, musculoskeletal, genitourinary, and gastrointestinal systems, as well as the complex psychosocial impact on the developing child. Individuals with SB benefit from the involvement of neurosurgeons, orthopedic surgeons, urologists, physical medicine and rehabilitation specialists, pediatricians, psychologists, physical/occupational/speech therapists, social workers, nurse coordinators, and other personnel. Multidisciplinary clinics are the gold standard for coordinated, optimal medical and surgical care. Ann and Robert H. Lurie Children's Hospital, formerly known as Children's Memorial Hospital, was one of the first hospitals in the USA to manage patients with this complex disease in a multidisciplinary manner. We describe the longitudinal experience of the multidisciplinary Spina Bifida Center at our institution and highlight the advances that have arisen from this care model over time. This clinic serves as an exemplar of organized, effective, and patient-centered approach to the comprehensive care of people living with open SB.
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Affiliation(s)
- Nathan A Shlobin
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Elizabeth B Yerkes
- Department of Urology, Division of Pediatric Urology, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Vineeta T Swaroop
- Department of Orthopedic Surgery, Division of Pediatric Orthopedic Surgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Sandi Lam
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - David G McLone
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Robin M Bowman
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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Idriceanu T, Beuriat PA, Di Rocco F, Szathmari A, Mottolese C. Recurrent tethering in conus lipomas: a late complication not to be ignored. World Neurosurg 2022; 168:e12-e18. [PMID: 35863646 DOI: 10.1016/j.wneu.2022.07.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/09/2022] [Accepted: 07/11/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUNDS Recurrent symptomatic tethered cord (RTC) is a long-term complication of spinal cord lipomas, responsible for progressive motor deficits, urologic dysfunction and aggravation of spinal deformities.We retrospectively analysed all cases of recurrent tethering after spinal cord lipoma surgery, the clinical and radiological features that led to the diagnosis, the surgical management and the neuro-orthopedic outcome at the last follow-up. METHODS The study was carried out over a period of 20 years on a total of 209 pediatric patients from a single institution, initially treated for a conus lipoma. RESULTS 9 patients (4,8 %) were surgically treated for a RTC. The age at retethering ranged from 2 to 12 years -median of 7, 4 years. The time before the first and the second surgical procedure, ranged from 19 to 140 months - median of 7 years and a half. The follow-up period after the second surgery ranged from 3 months to 13 years with a median of 50 months. Among symptoms, pain responded very well to surgery. Gait disturbances improved in 50 % after the surgery. One patient with bladder dysfunctions also improved. The rest of the patients maintained the pre-surgical status. CONCLUSIONS When RTC is confirmed, child should be referred to surgery as soon as possible, as we showed that the post- operative clinical outcome improved and surgery did not worsen patients. We stressed the fact that the follow-up should be as long as possible for these patients.
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Affiliation(s)
- T Idriceanu
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69677 Lyon Cedex, France
| | - P A Beuriat
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69677 Lyon Cedex, France
| | - F Di Rocco
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69677 Lyon Cedex, France
| | - A Szathmari
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69677 Lyon Cedex, France
| | - C Mottolese
- Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, 32 Avenue du Doyen Jean Lépine, 69677 Lyon Cedex, France.
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Hayashi T, Kimiwada T, Shirane R, Tominaga T. Retethering risk in pediatric spinal lipoma of the conus medullaris. J Neurosurg Pediatr 2021:1-8. [PMID: 34798614 DOI: 10.3171/2021.9.peds21413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/20/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Lipoma of the conus medullaris (LCM) causes neurological symptoms known as tethered cord syndrome (TCS). The symptoms can be seen at diagnosis and during long-term follow-up. In this report, pediatric patients with LCMs who underwent untethering surgery, under the policy of performing surgery if diagnosed regardless of symptoms, were retrospectively reviewed to evaluate long-term surgical outcomes. Possible risk factors for retethered cord syndrome (ReTCS) were evaluated in the long-term follow-up period. METHODS A total of 51 consecutive pediatric patients with LCMs who underwent a first untethering surgery and were followed for > 100 months were retrospectively analyzed. The surgery was performed with the partial removal technique. Pre- and postoperative clinical and radiological data were reviewed to analyze the outcomes of surgery and identify potential risk factors for ReTCS. RESULTS During follow-up, 12 patients experienced neurological deterioration due to ReTCS. The overall 10-year and 15-year progression-free survival rates were 82.3% and 75.1%, respectively. On univariate analysis, a lipoma type of lipomyelomeningocele (OR 11, 95% CI 2.50-48.4; p = 0.0014), patient age at the time of surgery (OR 0.41, 95% CI 0.14-1.18; p = 0.0070), and the mean patient growth rate after surgery (OR 2.00, 95% CI 1.12-3.41; p = 0.0040) were significant factors associated with ReTCS. Cox proportional hazard models showed that a lipoma type of lipomyelomeningocele (HR 5.16, 95% CI 1.54-20.1; p = 0.010) and the mean growth rate after surgery (HR 1.88, 95% CI 1.00-3.50; p = 0.040) were significantly associated with the occurrence of ReTCS. CONCLUSIONS More complex lesions and a high patient growth rate after surgery seemed to indicate increased risk of ReTCS. Larger prospective studies and registries are needed to define the risks of ReTCS more adequately.
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Affiliation(s)
- Toshiaki Hayashi
- 1Department of Neurosurgery, Miyagi Children's Hospital, Sendai; and
| | - Tomomi Kimiwada
- 1Department of Neurosurgery, Miyagi Children's Hospital, Sendai; and
| | - Reizo Shirane
- 1Department of Neurosurgery, Miyagi Children's Hospital, Sendai; and
| | - Teiji Tominaga
- 2Tohoku University Graduate School of Medicine, Sendai, Japan
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Lee SB, Im YJ, Jung JH, Do MT, Lee JY, Wang KC, Park K. Clinical and urodynamic features of secondary tethered cord syndrome: How can they be found longitudinally? Neurourol Urodyn 2021; 41:365-374. [PMID: 34783385 DOI: 10.1002/nau.24832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/16/2021] [Accepted: 10/22/2021] [Indexed: 11/09/2022]
Abstract
PURPOSE Secondary tethered cord syndrome (TCS) can be diagnosed with signs of progressive deterioration in urological or neuro-orthopedic systems following primary untethering surgery. Though urological deterioration is a common secondary TCS manifestation, a paucity of diagnostic criteria makes diagnoses challenging. A detailed description of urological deterioration may help diagnose secondary TCS. Thus, the clinical and urodynamic features of the current secondary TCS cases were described. MATERIALS AND METHODS Fifty-one patients who had undergone reuntethering for secondary TCS experienced improvement or stabilization of progressive problems. Moreover, their clinical and videourodynamic changes were longitudinally described. RESULTS Loss of postoperative spontaneous voiding was the first urological secondary TCS sign for those who could void spontaneously. Urological problems mostly occurred during elementary school (6-12 years). Major urological presentations were recalcitrant urinary tract infection or urinary incontinence. Follow-up videourodynamic studies revealed typical changes, from acontractile bladder to overactive and low-complaint bladders. While detrusor overactivity did not always occur during the progression, detrusor sphincter dyssynergia was always present in all patients with urological deterioration. All patients postoperatively showed significant urodynamic improvement regardless of preoperative bladder dysfunction. This included four cases of restoring spontaneous voiding. Nine patients experienced newly appearing nonprogressive neuro-orthopedic complications despite their urological improvement. CONCLUSIONS Urological deterioration should prompt secondary TCS suspicion, and changes in clinical patterns and videourodynamic studies helped diagnose it. However, reuntethering can effectively address urological problems at the cost of some neuro-orthopedic functions in some patients.
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Affiliation(s)
- Su B Lee
- Department of Pediatric Urology, Seoul National University Children's Hospital, Seoul, South Korea
| | - Young J Im
- Department of Pediatric Urology, Seoul National University Children's Hospital, Seoul, South Korea
| | - Jae H Jung
- Department of Pediatric Urology, Seoul National University Children's Hospital, Seoul, South Korea
| | - Minh T Do
- Department of Pediatric Urology, Seoul National University Children's Hospital, Seoul, South Korea
| | - Ji Y Lee
- Department of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, South Korea
| | - Kyu-Chang Wang
- Department of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, South Korea
| | - Kwanjin Park
- Department of Pediatric Urology, Seoul National University Children's Hospital, Seoul, South Korea
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Abstract
BACKGROUND Myelomeningocele (MMC) is a congenital malformation that results from a failure in the process of neurulation. A multidisciplinary follow-up is required to manage and treat all associated sequelae. The aim of the study was to present the epidemiological data and the results of the multidisciplinary follow-up of children born in Slovenia with myelomeningocele (MMC) between 2007 and 2017. METHODS We presented a retrospective analysis of all children born in Slovenia with between 2007 and 2017. The multidisciplinary follow-up included neurosurgical, urological, neurological, endocrinological and orthopedic expertise. RESULTS Twenty children were treated in Slovenia for MMC from 2007 to 2017 (mean follow-up of 7.7 years). 9 MMC were thoracic, 2 higher lumbar, 5 lower lumbar and 4 sacral. Thirteen children needed a CSF shunt, 1 was treated with endoscopic ventriculostomy (ETV). Four children needed a craniocervical decompression and 2 needed a detethering procedure. 14 children had a neurogenic bladder and 17 referred bowel continence. Orthopedic correction of the lower limbs was required in 9 cases. 4 children had seizures, 10 had endocrinological deficits. Among 16 children attending school, 11 were inserted in special educational classes. CONCLUSIONS The prevalence of MMC in Slovenia between 2007 and 2017 was 1/10000 births. Our follow-up results are comparable with those of previous, larger studies and confirm the efficacy of treating hydrocephalus with ETV in selected cases and with CSF shunt only in cases of clearly increased intracranial pressure. By adopting this strategy, we reduced the CSF shunt rate to 65%.
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Affiliation(s)
- Peter Spazzapan
- Unit of Pediatric Neurosurgery, Department of Neurosurgery, University Medical Centre Ljubljana, Ljubljana, Slovenia -
| | - Tomaž Velnar
- Unit of Pediatric Neurosurgery, Department of Neurosurgery, University Medical Centre Ljubljana, Ljubljana, Slovenia
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Dias MS, Wang M, Rizk EB, Bowman R, Partington MD, Blount JP, Rocque BG, Hopson B, Ettinger D, Lee A, Walker WO. Tethered spinal cord among individuals with myelomeningocele: an analysis of the National Spina Bifida Patient Registry. J Neurosurg Pediatr 2021; 28:21-27. [PMID: 33962385 PMCID: PMC10193501 DOI: 10.3171/2020.12.peds20868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/01/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The aims of this study were to review the National Spina Bifida Patient Registry (NSBPR) data set to study the rates of tethered spinal cord release (TCR) among patients with myelomeningocele and variability between centers, to compare TCR rates between males and females, and to study the relationships between TCR rates and other condition-specific characteristics. METHODS The NSBPR registry was queried to identify all patients with myelomeningocele. TCR rates were calculated over time using survival analyses; rates between centers and between males and females were compared. Cox proportional hazards models were constructed to identify relationships between TCR rates and sex, functional lesion level, ambulation status, treated hydrocephalus, and prior Chiari decompression. RESULTS Of 6339 patients with information about their operations, 1366 (21.5%) underwent TCR, with significant variability between centers. The majority (75.8%) underwent a single TCR. The annual TCR rate was linear between birth and 13 years (1.8%/year) but declined sharply from 14 to 21 years (0.7%/year). There was no period of time at which the TCR rate accelerated. There were no significant differences in TCR rates between males and females. TCR rate was not related to functional lesion level but was lower among nonambulators compared with community ambulators (p = 0.005) and among those with treated hydrocephalus (HR 0.30, p < 0.001), and higher among those having prior Chiari decompression (HR 1.71, p < 0.001). CONCLUSIONS These results extend the results of prior single-institution studies, demonstrate significant treatment variability between institutions, and challenge the traditional concept that tethering is related to spinal cord stretching due to spinal growth.
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Affiliation(s)
- Mark S. Dias
- Department of Neurosurgery, Penn State Hershey Children’s Hospital and Penn State College of Medicine, Hershey
| | - Ming Wang
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania
| | - Elias B. Rizk
- Department of Neurosurgery, Penn State Hershey Children’s Hospital and Penn State College of Medicine, Hershey
| | - Robin Bowman
- Department of Neurosurgery, Ann and Robert H. Lurie Children’s Hospital of Chicago and Northwestern University College of Medicine, Chicago, Illinois
| | - Michael D. Partington
- Department of Neurosurgery, Gillette Children’s Specialty Healthcare, St. Paul, Minnesota
| | - Jeffrey P. Blount
- Department of Neurosurgery, Children’s of Alabama and University of Alabama at Birmingham, Alabama
| | - Brandon G. Rocque
- Department of Neurosurgery, Children’s of Alabama and University of Alabama at Birmingham, Alabama
| | - Betsy Hopson
- Department of Neurosurgery, Children’s of Alabama and University of Alabama at Birmingham, Alabama
| | - Daria Ettinger
- Institute on Development and Disability, Oregon Health & Science University, Portland, Oregon; and
| | - Amy Lee
- Departments of Neurosurgery and
| | - William O. Walker
- Developmental Behavioral Pediatrics, Seattle Children’s Hospital and University of Washington College of Medicine, Seattle, Washington
| | - on behalf of the National Spina Bifida Patient Registry Group
- Department of Neurosurgery, Penn State Hershey Children’s Hospital and Penn State College of Medicine, Hershey
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania
- Department of Neurosurgery, Ann and Robert H. Lurie Children’s Hospital of Chicago and Northwestern University College of Medicine, Chicago, Illinois
- Department of Neurosurgery, Gillette Children’s Specialty Healthcare, St. Paul, Minnesota
- Department of Neurosurgery, Children’s of Alabama and University of Alabama at Birmingham, Alabama
- Institute on Development and Disability, Oregon Health & Science University, Portland, Oregon; and
- Departments of Neurosurgery and
- Developmental Behavioral Pediatrics, Seattle Children’s Hospital and University of Washington College of Medicine, Seattle, Washington
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Siller S, Egensperger R, Szelenyi A, Tonn JC, Zausinger S, Schichor C. Intraspinal epidermoid and dermoid cysts-tumor resection with multimodal intraoperative neurophysiological monitoring and long-term outcome. Acta Neurochir (Wien) 2020; 162:2895-903. [PMID: 32524245 DOI: 10.1007/s00701-020-04446-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 06/01/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Intraspinal epidermoid/dermoid cysts are very rare, benign tumors arising from pathological displacement of epidermal cells into the spinal canal. Literature data about the long-term outcome after microsurgical resection with multimodal intraoperative neurophysiological monitoring (IONM) are lacking. We analyzed one of the largest case series with special regard to intraoperative characteristics and long-term outcome after IONM-aided surgery. METHOD All 12 patients (m:f = 1.4:1) who underwent microsurgical tumor resection with multimodal IONM for intraspinal epidermoid/dermoid tumors between 1998 and 2019 in our university hospital were included. We retrospectively investigated the patients' characteristics, imaging/surgical parameters, and postoperative long-term outcomes. RESULTS Symptomatic tumor manifestation was seen during adulthood in 4 patients (median age 33.0 years) and during childhood in 8 patients (median age 4.3 years). Spinal dysraphism was the most often comorbidity (75%). The most frequent symptoms at diagnosis were spastic pareses (75%), ataxia (58%), and vegetative disorders (42%). Tumors were most often lumbosacral (L1-L5 42%, L5-S3 50%) and intradural-extramedullary (92%). For microsurgical resection, IONM with EMG, SSEPs, and TcMEPs of the limbs and pudendal nerve/anal sphincter was always applied and feasible; intraoperative corrective actions were initiated in three cases due to transient IONM deterioration. None of the patients showed a postoperative deterioration of the neurological status with a gross total resection rate of 92%. Pain situation, McCormick grade, and mJOA Score were improved at long-term follow-up (median 4.8 years). CONCLUSIONS IONM-aided resection of intraspinal epidermoid/dermoid tumors is feasible both in adult and pediatric cases and enables a satisfying clinical and surgical outcome.
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Abstract
Tethered cord syndrome (TCS) after myelomeningocele (MMC) repair (or secondary TCS) is a challenging condition characterized by neurological, orthopedic, and urological symptoms, which are combined with a low-lying position of the conus medullaris and damage to the stretched spinal cord owing to metabolic and vascular derangements. It has been reported that this syndrome affects, on average, 30% of children with MMC. In this review, we revisit the historical aspects of secondary TCS and highlight the most important concepts of diagnosis, treatment, and outcomes for secondary TCS as well as the current research regarding the impact of fetal MMC repair in the incidence and management of TCS. In the future, the development of synthetic models of TCS could shorten the learning curve of pediatric neurosurgeons, and research into the cellular proapoptotic features and increased inflammation biomarkers associated with TCS will also improve the treatment of this condition and minimize retethering of the spinal cord.
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Affiliation(s)
| | | | - François Dantas
- Pediatric Neurosurgery, Vila da Serra Hospital, Nova Lima, BRA
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13
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Wang K, Shang F, Jian FZ, Wu H. Effect of simultaneous surgical treatment in scoliosis associated with intraspinal abnormalities: A retrospective study. Exp Ther Med 2020; 20:108. [PMID: 32989387 PMCID: PMC7517534 DOI: 10.3892/etm.2020.9236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 12/20/2020] [Indexed: 11/06/2022] Open
Abstract
To evaluate the outcomes of single-stage surgical treatment for spinal deformity and coexisting intraspinal pathologies, 12 patients who underwent single-stage surgical treatment for spinal deformity and co-existing intraspinal abnormalities between October 2016 and January 2017 were enrolled in the present study. Treatment for intraspinal abnormalities, posterior correction, osteotomy and internal fixation were performed simultaneously. The clinical and radiological outcomes, surgical details, complications and postoperative outcomes were evaluated. The mean fusion length was 11.0±2.8. Both scoliosis Cobb angle (pre-surgery 65.9±13.4 vs. post-surgery 21.7±9.4) and kyphosis (pre-surgery 71.1±19.5 vs. post-surgery 31.4±10.4) were significantly improved post-surgery. Tethered cords were released and epidermoid cysts, gangliogliomas, meningiomas and lipomas were resected. Muscle strength in all patients was improved. The muscular tone of 8 patients was improved. No severe complications occurred postoperatively. None of the patients experienced deterioration in their neurological status nor loss of correction during the 12-24 months' follow-up. The simultaneous surgical treatment for spinal deformity and intraspinal pathology seems to be a safe and effective approach. Neurological deficits were improved postoperatively. Osteotomy produces satisfactory correction results.
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Affiliation(s)
- Kai Wang
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing 100053, P.R. China
| | - Feng Shang
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing 100053, P.R. China
| | - Feng-Zeng Jian
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing 100053, P.R. China
| | - Hao Wu
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing 100053, P.R. China
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Borgstedt-Bakke JH, Wichmann TO, Gudmundsdottir G, Rasmussen MM. The incidence and effect of tethered cord release for tethered cord syndrome in patients with myelomeningocele: a population-based study. J Neurosurg Pediatr 2020; 26:269-274. [PMID: 32470933 DOI: 10.3171/2020.4.peds19722] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 04/06/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The goal of this study was to establish an incidence and assess the effect of tethered cord release for tethered cord syndrome in patients with myelomeningocele. METHODS The study population was based on the Western Denmark Myelomeningocele Database, which contains all patients born with myelomeningocele in western Denmark since 1970. The study population was cross-referenced in 2015 with a database for surgical procedures containing all surgical procedures performed in the central Denmark region since 1996. Patients alive between 1996 and 2015 were identified. Incidences was calculated and presented for year of age. File reviews were conducted for all patients who underwent the procedure. Follow-up was divided into short-term and long-term follow-up. RESULTS One hundred sixty-six patients were alive during various time periods between 1996 and 2015. Of these, 45 patients underwent the procedure. Seven underwent reoperation. The median age for the procedure was 12 years and the highest incidence was found at 15 years of age. Incidence was bimodal with highest incidence in children and adolescents. The most common indications were progressive spine deformity (40%), deteriorating ambulation (38%), and deteriorating neurogenic bladder and/or bowel dysfunction (32%). The mean short-term follow-up was 4.7 months and the mean long-term follow-up was 72.6 months. Postoperatively, the majority had improved (27%) or stabilized (27%) at short-term follow-up. At long-term follow-up, most patients were stable (27%) or had deteriorated (24%). For both follow-up terms there was a loss of approximately one-third of all patients. Complications occurred in 17% of the procedures. CONCLUSIONS In this population-based study, tethered cord release has the highest incidence in children and adolescents. The beneficial effect of the procedure seems to be short term. Due to the uncertainty of a long-term effect of the procedure in patients with myelomeningocele and the registered complications, the authors suggest that this surgical indication should be reserved for well-selected patients.
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15
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Abstract
During the follow-up period after surgery for spinal dysraphism, a certain portion of patients show neurological deterioration and its secondary phenomena, such as motor, sensory or sphincter changes, foot and spinal deformities, pain, and spasticity. These clinical manifestations are caused by tethering effects on the neural structures at the site of previous operation. The widespread recognition of retethering drew the attention of medical professionals of various specialties because of its incidence, which is not low when surveillance is adequate, and its progressive nature. This article reviews the literature on the incidence and timing of deterioration, predisposing factors for retethering, clinical manifestations, diagnosis, surgical treatment and its complications, clinical outcomes, prognostic factors after retethering surgery and preventive measures of retethering. Current practice and opinions of Seoul National University Children’s Hospital team were added in some parts. The literature shows a wide range of data regarding the incidence, rate and degree of surgical complications and long-term outcomes. The method of prevention is still one of the main topics of this entity. Although alternatives such as spinal column shortening were introduced, re-untethering by conventional surgical methods remains the current main management tool. Re-untethering surgery is a much more difficult task than primary untethering surgery. Updated publications include strong skepticism on re-untethering surgery in a certain group of patients, though it is from a minority of research groups. For all of the abovementioned reasons, new information and ideas on the early diagnosis, treatment and prevention of retethering are critically necessary in this era.
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Affiliation(s)
- Ji Yeoun Lee
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Korea.,Department of Anatomy, Seoul National University College of Medicine, Seoul, Korea
| | - Kyung Hyun Kim
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Korea
| | - Kwanjin Park
- Division of Pediatric Urology, Seoul National University Children's Hospital, Seoul, Korea
| | - Kyu-Chang Wang
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Korea
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Abstract
Spinal dysraphism is an umbrella term that encompasses a number of congenital malformations that affect the central nervous system. The etiology of these conditions can be traced back to a specific defect in embryological development, with the more disabling malformations occurring at an earlier gestational age. A thorough understanding of the relevant neuroembryology is imperative for clinicians to select the correct treatment and prevent complications associated with spinal dysraphism. This paper will review the neuroembryology associated with the various forms of spinal dysraphism and provide a clinical-pathological correlation for these congenital malformations.
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Baldia M, Rajshekhar V. Minimizing CSF Leak and Wound Complications in Tethered Cord Surgery with Prone Positioning: Outcomes in 350 Patients. World Neurosurg 2020; 137:e610-7. [PMID: 32088374 DOI: 10.1016/j.wneu.2020.02.073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND We document the results of a protocol to reduce the incidence of cerebrospinal fluid (CSF) leak and other wound complications in patients undergoing tethered cord surgery (TCS). METHODS Data from all patients undergoing TCS between January 2009 and April 2019 were reviewed retrospectively. Diagnosis (high risk or low risk; based on the presence of fascial and dural defects at surgery), type of graft used for dural or fascial repair, and CSF leak and other wound complications in the postoperative period were noted. All patients were nursed in the prone position with elevation of the foot end of the bed (Trendelenburg position) for at least 5 days after surgery with a subfascial drain in place. RESULTS Of a total of 350 patients (191 high risk; 159 low risk), CSF leak from the wound was noted in 16 (4.5%). All but 4 of these patients were managed with wound suturing with or without insertion of a subcutaneous drain with continued nursing in the prone and Trendelenburg position. Two patients had meningitis and 3 patients had wound infection. Multivariate analysis revealed that the use of synthetic grafts (P < 0.000) and inability to close the dura (P = 0.02) were the only significant risk factors for CSF wound leak. Wound infections and/or dehiscence were noted in 17 (4.8%) other patients. CONCLUSION Postoperative prone nursing with Trendelenburg position minimizes the incidence of CSF leak and other wound complications.
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18
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Demirci Otluoglu G, Hasanov T, Mert B, Toktas ZO, Konya D, Demir MK. Fracture and migration of a retained microcatheter into the cauda equina after endovascular neurointervention for dural arteriovenous fistula as a rare cause of tethered spinal cord: case report. J Neurosurg Spine 2019; 32:1-4. [PMID: 31835249 DOI: 10.3171/2019.9.spine19783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 09/30/2019] [Indexed: 11/06/2022]
Abstract
The evaluation of spinal cord vascular malformations in neuroradiology departments remains valid for both diagnosis and endovascular embolization, and for adjuvant as well as definitive treatment. The most commonly encountered complications of endovascular approaches are the recurrence or the incomplete embolization of the lesion and accidental damage to the medullary arteries, which leads to spinal cord infarction. Failure to remember a microcatheter in the abdominal aorta after catheterization is an underestimated complication. A retained guidewire in the circulation may not necessarily cause symptoms, and it may remain unnoticed for a significant period of time. However, severe complications may be faced even many years later. In this article, a case report on a fracture and migration of a retained microcatheter in the cauda equina is presented. This occurred after an endovascular neurointervention for dural arteriovenous fistula as a rare cause of tethered spinal cord.
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Affiliation(s)
| | - Teyyub Hasanov
- 1Department of Neurosurgery, Bahcesehir University School of Medicine
| | - Basak Mert
- 2Bahcesehir University School of Medicine; and
| | | | - Deniz Konya
- 1Department of Neurosurgery, Bahcesehir University School of Medicine
| | - Mustafa Kemal Demir
- 3Department of Radiology, Bahcesehir University School of Medicine, Istanbul, Turkey
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Bradko V, Castillo H, Janardhan S, Dahl B, Gandy K, Castillo J. Towards Guideline-Based Management of Tethered Cord Syndrome in Spina Bifida: A Global Health Paradigm Shift in the Era of Prenatal Surgery. Neurospine 2019; 16:715-727. [PMID: 31284336 PMCID: PMC6944994 DOI: 10.14245/ns.1836342.171] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 04/08/2019] [Accepted: 06/01/2019] [Indexed: 01/04/2023] Open
Abstract
An estimated 60% of the world's population lives in Asia, where the incidence of neural tube defects is high. Aware that tethered cord syndrome (TCS) is an important comorbidity, the purpose of this systematic review was to explore the treatment of TCS among individuals living with spina bifida (SB) in Asia. MEDLINE and Embase databases were searched for relevant studies published from January 2000 to June 2018. Search terms such as 'spinal dysraphism,' 'spinabifida,' 'diastematomyelia,' 'lipomeningocele,' 'lypomyelomeningocele,' 'meningomyelocele,' and 'tethered cord syndrome' were used in diverse combinations. Of the 1,290 articles that were identified in accordance with PRISMA (Preferred Items for Systematic Reviews and Meta-Analyses) guidelines, 15 Asia-based studies met the inclusion criteria. Significant differences in the diagnostic criteria and management of TCS were documented. As the surgical techniques for prenatal closure of the spinal defect continue to evolve, their adoption internationally is likely to continue. In this setting, a clear and evidence-based approach to the definition and management of TCS is essential. The recent publication by the Spina Bifida Association of America of their updated care guidelines may serve as a tool used to promote a systematized approach to diagnosing and treating TCS among individuals with SB in the region, as well as globally.
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Affiliation(s)
- Viachaslau Bradko
- Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
- Division of Orthopedic and Scoliosis Surgery, Texas Children’s Hospital, Houston, TX, USA
| | - Heidi Castillo
- Developmental Pediatrics, Department of Pediatrics, Texas Children’s Hospital/Baylor College of Medicine, Houston, TX, USA
| | - Shruthi Janardhan
- Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Benny Dahl
- Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
- Division of Orthopedic and Scoliosis Surgery, Texas Children’s Hospital, Houston, TX, USA
| | - Kellen Gandy
- Department of Pediatrics, Staten Island University Hospital, Staten Island, NY, USA
| | - Jonathan Castillo
- Developmental Pediatrics, Department of Pediatrics, Texas Children’s Hospital/Baylor College of Medicine, Houston, TX, USA
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20
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Patel SK, Staarmann B, Heilman A, Mains A, Woodward J, Bierbrauer KS. Growing up with spina bifida: bridging the gaps in the transition of care from childhood to adulthood. Neurosurg Focus 2019; 47:E16. [DOI: 10.3171/2019.7.focus19441] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 07/26/2019] [Indexed: 11/06/2022]
Abstract
Spina bifida is the most common nonchromosomal birth defect, resulting in permanent disability of multiple organ systems, yet compatible with long-term survival. Important advances across various disciplines have now improved survival among the spina bifida population. Although the majority of individuals living with spina bifida are now adults, there are few publications in the neurosurgical literature regarding the care of adults with spina bifida, associated medical conditions, surgical interventions, and long-term complications. The major goals for transitioning adult patients with spina bifida are preservation of function and promotion of independence as well as general overall health. Nevertheless, many gaps exist in our knowledge and understanding of the complex needs of this aging patient population. The goal of this paper was to provide a comprehensive updated review of the literature regarding the challenges and considerations involved in the transitional care to adulthood for patients with spina bifida. Unique to this review, the authors provide a first-hand personal communication and interview with an adult patient with spina bifida that discusses many of these challenges with transition.
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Affiliation(s)
- Smruti K. Patel
- 1Department of Neurological Surgery, University of Cincinnati College of Medicine; and
| | - Brittany Staarmann
- 1Department of Neurological Surgery, University of Cincinnati College of Medicine; and
| | - Alexander Heilman
- 1Department of Neurological Surgery, University of Cincinnati College of Medicine; and
| | - Allie Mains
- 1Department of Neurological Surgery, University of Cincinnati College of Medicine; and
| | - Jason Woodward
- 3Center for Spina Bifida Care, Division of Developmental and Behavioral Pediatrics, and
- 4Transition Medicine, Division of Adolescent and Transition Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Karin S. Bierbrauer
- 1Department of Neurological Surgery, University of Cincinnati College of Medicine; and
- 2Division of Pediatric Neurological Surgery,
- 3Center for Spina Bifida Care, Division of Developmental and Behavioral Pediatrics, and
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21
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Abstract
The two-hit hypothesis of neural injury in the wake of open neural tube defects suggests an opportunity for preservation of function and potential reversibility of early morphological changes in the fetus diagnosed with myelomeningocele. The Management of Myelomeningocele Study (MOMS) demonstrated reduced need for shunting and improved neurological function in patients treated in utero relative to postnatally, thereby offering level 1 evidence supporting fetal repair. Subsequent studies have offered additional information about urological, orthopedic, radiological, and maternal factors surrounding fetal repair. The quest for robust long-term neurocognitive and motor function data is underway and poised to shape the future of fetal repair. In addition, technical innovations such as fetoscopic surgery aim to minimize maternal morbidity while conferring the beneficial effects observed with open intrauterine intervention.
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22
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Sekerci CA, Tarcan T. Primary and Secondary Tethered Cord and Association with Pediatric Lower Urinary Tract Dysfunction. Curr Bladder Dysfunct Rep 2019; 14:110-4. [DOI: 10.1007/s11884-019-00513-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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23
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Aoun SG, El Ahmadieh TY, Vance AZ, Neeley O, Morrill KC. The Use of Prone Magnetic Resonance Imaging to Rule Out Tethered Cord in Patients With Structural Spine Anomalies: A Diagnostic Technical Note for Surgical Decision-making. Cureus 2019; 11:e4221. [PMID: 31123643 PMCID: PMC6510567 DOI: 10.7759/cureus.4221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Tethered cord syndrome (TCS) is a clinical diagnosis that can be difficult to establish, as symptoms do not always match classic radiological findings, such as a low-lying conus. Surgery for spinal detethering is not without risk and does not always result in clinical improvement. Prone magnetic resonance imaging (MRI) has been described as a tool to assess the mobility of the spine. This is a technical imaging report where prone imaging was a factor that influenced the decision to defer surgery in favor of conservative management. T1 and T2 sagittal and T1 axial MRI imaging were obtained with the patient supine, and then repeated in the prone position. An anteroposterior conus movement of >10% of the canal width was considered normal. There was significant anterior movement of the conus when switching to the prone position. Surgery was deferred, and the patient improved after a regimen of intensive physical therapy. Prone MRI can be a useful tool to have in our neurosurgical armamentarium when assessing spinal cord tethering. Surgery is not recommended when normal anteroposterior movement of the conus is present.
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Affiliation(s)
- Salah G Aoun
- Neurosurgery, University of Texas Southwestern Medical Center, Dallas, USA
| | | | - Awais Z Vance
- Neurosurgery, University of Texas Southwestern Medical Center, Dallas, USA
| | - Om Neeley
- Neurosurgery, University of Texas Southwestern Medical Center, Dallas, USA
| | - Kevin C Morrill
- Neurosurgery, University of Texas Southwestern Medical Center, Dallas, USA
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Cohrs G, Drucks B, Sürie JP, Vokuhl C, Synowitz M, Held-Feindt J, Knerlich-Lukoschus F. Expression profiles of pro-inflammatory and pro-apoptotic mediators in secondary tethered cord syndrome after myelomeningocele repair surgery. Childs Nerv Syst 2019; 35:315-328. [PMID: 30280214 DOI: 10.1007/s00381-018-3984-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/21/2018] [Indexed: 11/27/2022]
Abstract
PURPOSE The literature on histopathological and molecular changes that might underlie secondary tethered cord syndrome (TCS) after myelomeningocele (MMC) repair surgeries remains sparse. To address this problem, we analyzed specimens, which were obtained during untethering surgeries of patients who had a history of MMC repair surgery after birth. METHODS Specimens of 12 patients were analyzed in this study. Clinical characteristics were obtained retrospectively including pre-operative neurological and bowel/bladder-function, contractures and spasticity of lower extremities, leg and back pain, syringomyelia, and conus position on spinal MRI. Cellular marker expression profiles were established. Further, immunoreactivities (IR) of IL-1ß/IL-1R1, TNF-α/TNF-R1, and HIF-1α/-2α were analyzed qualitatively and semi-quantitatively by densitometry. Co-labeling with cellular markers was determined by multi-fluorescence-labeling. Cytokines were further analyzed on mRNA level. Immunostaining for cleaved PARP and TUNEL was performed to detect apoptotic cells. RESULTS Astrocytosis, appearance of monocytes, activated microglia, and apoptotic cells in TCS specimens were one substantial finding of these studies. Besides neurons, these cells co-stained with IL-1ß and TNF-α and their receptors, which were found on significantly elevated IR-level and partially mRNA-level in TCS specimens. Staining for HIF-1α/-2α confirmed induction of hypoxia-related factors in TCS specimens that were co-labeled with IL-1ß. Further, hints for apoptotic cell death became evident by TUNEL and PARP-positive cells in TCS neuroepithelia. CONCLUSIONS Our studies identified pro-inflammatory and pro-apoptotic mediators that, besides mechanical damaging and along with hypoxia, might promote TCS development. Besides optimizing surgical techniques, these factors should also be taken into account when searching for further options to improve TCS treatment.
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Affiliation(s)
- Gesa Cohrs
- Department of Neurosurgery, University Hospital of Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3, House 41, 24105, Kiel, Germany
| | - Bea Drucks
- Department of Neurosurgery, University Hospital of Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3, House 41, 24105, Kiel, Germany
| | - Jan-Philip Sürie
- Department of Neurosurgery, University Hospital of Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3, House 41, 24105, Kiel, Germany
| | - Christian Vokuhl
- Department of Pathology, University Hospital of Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3, House 14, 24105, Kiel, Germany
| | - Michael Synowitz
- Department of Neurosurgery, University Hospital of Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3, House 41, 24105, Kiel, Germany
| | - Janka Held-Feindt
- Department of Neurosurgery, University Hospital of Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3, House 41, 24105, Kiel, Germany
| | - Friederike Knerlich-Lukoschus
- Department of Neurosurgery, University Hospital of Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3, House 41, 24105, Kiel, Germany.
- Deparment of Pediatric Neurosurgery, Asklepios klinik Sankt Augstin GmbH, Arnold-Janssen-Str. 29, 53757, Sankt Augustin, Germany.
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Valente I, Pedicelli A, Piacentini M, Di Serafino M, Vallone G, Speca S, Colosimo C. Spinal cord ultrasonography of the newborn. J Ultrasound 2019; 22:113-9. [PMID: 30535560 DOI: 10.1007/s40477-018-0345-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 11/30/2018] [Indexed: 10/27/2022] Open
Abstract
Ultrasound represents the first-line survey for the assessment of spinal cord development abnormalities. In fact, within 6 months of life, the non-ossification of neuronal arcs provides an excellent acoustic window that allows a detailed depiction of the spinal canal, its content and of the surrounding soft tissues. Nevertheless, an accurate ultrasound examination requires a complete knowledge of the anatomy, the condition of normality, the frequent anatomical variants and the main pathologies involved. This review is intended to briefly summarize the US technique, the main clinical indication and the key notions that could help to properly perform this type of ultrasound examination.
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26
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Hou Y, Sun J, Shi J, Guo Y, Wang Y, Shi G, Xu G. Clinical evaluation of an innovative operative procedure in the treatment of the tethered cord syndrome. Spine J 2018; 18:998-1004. [PMID: 29055742 DOI: 10.1016/j.spinee.2017.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 09/25/2017] [Accepted: 10/05/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT The tethered cord syndrome (TCS) characterized by urination dysfunction has long been a worldwide clinical problem, of which clinical effects remains controversial. PURPOSE The objective of this study was to evaluate the clinical effects of an innovative surgical method for the treatment of TCS. STUDY DESIGN This is a retrospective clinical study. PATIENT SAMPLE There were 15 patients included in this study. OUTCOME MEASURES The visual analog scale (VAS) and the Japanese Orthopaedic Association (JOA) scores were evaluated. The incidence of complications after surgery was also analyzed. MATERIALS AND METHODS A total of 15 patients including 9 men and 6 women with TCS underwent homogeneous spinal-shortening axial decompression (HSAD) from September 2011 to February 2015. The average age at the time of surgery was 38.1±17.7 years. The average postoperative follow-up period was 21.5±7.5 months. The VAS and JOA scores were used to evaluate the clinical effects of the new operational procedure. In addition, the incidence of complications was also recorded and analyzed. RESULTS The VAS scores decreased from 3.93±2.52 to 1.80±1.21 at the final follow-up after surgery with a significant statistical difference (p=.006). The JOA scores also significantly increased from 9.93±3.43 to 21.20±4.18 at the final follow-up (p<.001). Fourteen cases (93.3%) with bladder dysfunction and 7 cases with sensory dysfunction of the lower limbs (87.5%) had a significant improvement postoperatively. Complications such as infection, pulmonary embolism, nerve injury, and broken rod were not observed during the follow-up period. CONCLUSIONS The operation of HSAD was an effective and safe surgical method for TCS, which can achieve direct decompression of the tethered spinal cord.
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Affiliation(s)
- Yang Hou
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415 Feng Yang Rd, Huangpu District, Shanghai, 200003, China
| | - Jingchuan Sun
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415 Feng Yang Rd, Huangpu District, Shanghai, 200003, China
| | - Jiangang Shi
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415 Feng Yang Rd, Huangpu District, Shanghai, 200003, China.
| | - Yongfei Guo
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415 Feng Yang Rd, Huangpu District, Shanghai, 200003, China
| | - Yuan Wang
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415 Feng Yang Rd, Huangpu District, Shanghai, 200003, China
| | - Guodong Shi
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415 Feng Yang Rd, Huangpu District, Shanghai, 200003, China
| | - Guohua Xu
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415 Feng Yang Rd, Huangpu District, Shanghai, 200003, China
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Udayakumaran S, Rathod CT. Tailored Strategies to Manage Cerebrospinal Fluid Leaks or Pseudomeningocele After Surgery for Tethered Cord Syndrome. World Neurosurg 2018; 114:e1049-e1056. [PMID: 29605699 DOI: 10.1016/j.wneu.2018.03.144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 11/20/2022]
Abstract
BACKGROUND Cerebrospinal fluid (CSF) leaks are a dreaded complication after surgery for tethered cord and are associated with significant patient morbidity. Although many strategies for managing postoperative CSF leaks exist, this problem is still daunting, especially in very young patients. In this study, we compared different management techniques for CSF leaks or significant pseudomeningocele in patients with tethered cord syndrome (TCS). METHODS We analyzed a cohort of children who underwent surgery for TCS from January 2011 to March 2016 (n = 260) and postoperatively experienced either a CSF leak or significant pseudomeningocele. A subset of patients presented with CSF leak (n = 25). We analyzed patient age, sex, presentation, leak appearance, management, and outcome. The different techniques of management were compared for efficacy and morbidity. RESULTS The diseases associated with leak formation included lipomyelomeningocele (n = 16), myelocystocele (n = 4), and myelomeningocele (n = 5). Three children also had hydrocephalus. Management techniques included cystoperitoneal shunt (CPS) (n = 15), primary resuturing with local rotation flap of muscle (n = 3), external ventricular drain placement (n = 1), ventriculoperitoneal shunt (n = 3), external ventricular drainage (n = 1), and a combination of techniques (rotation flap with external drain; n = 1). Five patients who underwent primary wound revision experienced a leak and required a secondary intervention, but none of the patients who underwent CPS had any complications. CONCLUSIONS In carefully selected cases, CPS performed early after CSF leakage is highly successful with low morbidity. The primary closure can be attempted for low-pressure leaks without an associated pseudomeningocele.
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Affiliation(s)
- Suhas Udayakumaran
- Division of Pediatric Neurosurgery, Amrita Institute of Medical Sciences and Research Centre, Amrita University, Kochi, Kerala, India.
| | - Chetan T Rathod
- Department of Neurosurgery, Amrita Institute of Medical Sciences and Research Centre, Amrita University, Kochi, Kerala, India
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Yoshioka F, Shimokawa S, Koguchi M, Ito H, Ogata A, Inoue K, Takase Y, Tanaka T, Nakahara Y, Masuoka J, Abe T. Curved Planar Reformation for the Evaluation of Hydromyelia in Patients With Scoliosis Associated With Spinal Dysraphism. Spine (Phila Pa 1976) 2018; 43:E177-84. [PMID: 28604485 DOI: 10.1097/BRS.0000000000002270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A retrospective cohort study. OBJECTIVE Scoliosis and hydromyelia have frequently been observed in patients with spinal dysraphism. We investigated the applicability of curved planar reformation (CPR) for evaluating hydromyelia in patients with scoliosis associated with spinal dysraphism. SUMMARY OF BACKGROUND DATA It is quite difficult to evaluate scoliosis and hydromyelia in patients with spinal dysraphism. METHODS We identified 11 patients with scoliosis and a Cobb angle of >20° among 107 spinal dysraphism patients. In addition to routine T1- and T2-weighted axial and sagittal MRI, we obtained three-dimensional constructive interference in steady-state magnetic resonance imaging (MRI) as sagittal cross-section volume images. The spinal cord and hydromyelia were rendered into a single-plane, two-dimensional image using the straightened CPR technique. In cases of scoliosis with hydromyelia, the sagittal length and maximal diameters of hydromyelia and the spinal cord were measured by three examiners. Measurement errors among examiners were evaluated using standard deviation (SD) and coefficient of variation (CV). RESULTS Each series of image sets provided a straightened CPR image that clearly delineated the entire length of the linearized spinal cord in a single plane. The straightened CPR image also demonstrated the accurate lengths and estimated volume of hydromyelia. Given that three of the 11 patients underwent serial MRI during this period, we were able to accurately compare volume changes. In the sagittal length of the hydromyelia, SD and CV were smaller with the straightened CPR technique than with the conventional T2 WI sagittal section in all cases, showing a statistically significant difference between both techniques (SD: P = 0.014, CV: P = 0.013). Even in the measurements, the difference in CV between both techniques was close to statistical significance. CONCLUSION The straightened CPR technique is useful for accurately identifying volume changes in hydromyelia, even in patients with severe scoliosis. LEVEL OF EVIDENCE 1.
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Abstract
OBJECTIVE Tethered cord syndrome (TCS) is a neurosurgical disorder with varied clinical manifestations believed to result from vascular compromise due to stretch forces on the spinal cord. Conventional supine MRI findings may include a low-lying conus medullaris, thickened or fat-infiltrated filum terminale, or lipoma; however, imaging sensitivity and specificity for tethered cord can be low. The purpose of this study was to evaluate the utility of prone MRI in the diagnosis of tethered and retethered spinal cord. METHODS Medical records were reviewed in 41 patients who underwent surgical release of tethered cord and in whom preoperative prone MRI sequences were available. Patients were divided into Group 1 (new TCS diagnosis) and Group 2 (recurrent TCS after previous untethering). Absolute conus ventral motion and motion as a percentage of canal width between supine and prone positions was measured in these 2 groups via sagittal T2-weighted sequences; these groups were compared with 30 consecutive patients (Group 3) who were classified as the normal control group. RESULTS The mean ventral motion was as follows: Group 1 (absolute: 0.5 ± 0.5 mm [range 0-2.4 mm]; canal percentage: 3.7% ± 3.9% [range 0%-16.3%]); Group 2 (absolute: 0.4 ± 0.7 mm [range 0-2.6 mm]; canal percentage: 2.2% ± 3.7% [range 0%-14.0%]); and Group 3 (absolute: 3.4 ± 1.3 mm [range 1.4-5.6 mm]; canal percentage: 22.0% ± 7.2% [range 10.5%-36.1%]). Whereas 38/41 surgically treated patients with TCS had diminished (< 10% canal width) ventral motion on preoperative MRI, 30/30 controls had > 10% canal width motion. Sensitivity and specificity were thereby calculated as 92.7% and 100%, respectively. CONCLUSIONS In the present series, prone imaging is found to be a sensitive and specific tool, and the authors believe it may have a role as supportive evidence in the diagnosis of tethered and retethered spinal cord.
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Affiliation(s)
| | | | - Carina W Yang
- 2Department of Radiology, The University of Chicago, Illinois
| | | | - Saad Ali
- 2Department of Radiology, The University of Chicago, Illinois
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Mohanty A. Reoperation in Spinal Dysraphism. J Neurosci Rural Pract 2017; 8:501-503. [PMID: 29204003 PMCID: PMC5709866 DOI: 10.4103/jnrp.jnrp_238_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Aaron Mohanty
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA
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Steinberg JA, Wali AR, Martin J, Santiago-Dieppa DR, Gonda D, Taylor W. Spinal Shortening for Recurrent Tethered Cord Syndrome via a Lateral Retropleural Approach: A Novel Operative Technique. Cureus 2017; 9:e1632. [PMID: 29104840 PMCID: PMC5663326 DOI: 10.7759/cureus.1632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Spine shortening via vertebral osteotomy (SSVO) for recurrent tethered cord syndrome (TCS) is a novel surgical technique that avoids the complication profile associated with revision detethering. While SSVO has previously been described via a posterior approach, we describe a lateral retropleural approach for SSVO in recurrent TCS in a 21-year-old female. Our patient presented with progressive lower extremity weakness, bowel and bladder incontinence, and back pain in the setting of childhood repair of myelomeningocele and two previous detethering procedures. SSVO was offered to the patient as further detethering was deemed to have significant risk. A discectomy at T11-T12 via the lateral retropleural approach was performed, followed by a T12 partial corpectomy removing the vertebral body down to the inferior aspect of the T12 pedicle, followed by the removal of the ipsilateral pedicle. The T10, T11, L1, and L2 pedicle screws were then placed in the prone position and temporary rods were placed for temporary stability, followed by a laminectomy at T12 and a facetectomy for posterior element release. The remaining pedicle was removed, permanent rods were sequentially placed, and spinal column shortening was achieved by compression against the rods. Standing lateral radiographs demonstrated 19 millimeters (mm) of shortening after the intervention. The patient remained at her neurologic baseline postoperatively. At the six-month follow-up, the patient reported decreased lower extremity radicular pain and improved bowel and bladder function. This operative report demonstrates that SSVO via a lateral retropleural approach is a viable treatment for the recurrence of TCS. The advantages of this minimally invasive approach compared to the posterior approach are direct access to the vertebral body and disc space, avoiding the need to operate around the spinal cord. Further studies are necessary to assess this minimally invasive approach to spinal shortening and to see if a complete minimally invasive approach is possible.
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Affiliation(s)
| | - Arvin R Wali
- Department of Neurosurgery, University of California, San Diego
| | - Joel Martin
- Department of Neurosurgery, University of California, San Diego
| | | | - David Gonda
- Department of Neurosurgery, University of California, San Diego
| | - William Taylor
- Department of Neurosurgery, University of California, San Diego
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Safaee MM, Winkler EA, Chou D. Mini-open spinal column shortening for the treatment of adult tethered cord syndrome. J Clin Neurosci 2017; 44:315-319. [PMID: 28789957 DOI: 10.1016/j.jocn.2017.07.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 07/21/2017] [Indexed: 10/19/2022]
Abstract
Tethered cord syndrome (TCS) is a challenging entity characterized by adhesions at the caudal spinal cord that prevent upward movement during growth and result in stretching of the cord with a concomitant constellation of neurologic symptoms. Although growth in height stops in adulthood, some patients still develop progressive symptoms; many underwent detethering as a child or adolescent, resulting in significant scar tissue and re-tethering. Recent strategies have focused on spinal column shortening to reduce tension on the spinal cord without exposing the previous de-tethering site. Mini-open and minimally invasive approaches avoid the large dissection and exposure associated with traditional approaches and are associated with reduced blood loss, shorter hospital stay, and similar outcomes when compared to conventional open approaches. We describe a technique for mini-open spinal column shortening. Using intraoperative navigation pedicle screws were placed at T10, T11, L1, and L2. A mini-open 3-column "egg shell" decancellation osteotomy of T12 was performed through a transpedicular approach with preservation of the superior and inferior endplates. This procedure was performed on a 28year old male with recurrent TCS and neurogenic bladder. Postoperative imaging showed a reduction in spinal column length of 1.5cm and evidence of decreased tension on the spinal cord. At last follow-up he was recovering well with improved urinary function. Spinal column shortening for adult TCS can be safely achieved through a mini-open approach. Future studies should compare the efficacy of this technique to both traditional de-tethering and open spinal column shortening.
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Affiliation(s)
- Michael M Safaee
- Department of Neurological Surgery, University of California, San Francisco, United States.
| | - Ethan A Winkler
- Department of Neurological Surgery, University of California, San Francisco, United States
| | - Dean Chou
- Department of Neurological Surgery, University of California, San Francisco, United States
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Abstract
Understanding the developmental features of the pediatric spine and spinal cord, including embryologic steps and subsequent growth of the osteocartilaginous spine and contents is necessary for interpretation of the pathologic events that may affect the pediatric spine. MR imaging plays a crucial role in the diagnostic evaluation of patients suspected of harboring spinal abnormalities, whereas computed tomography and ultrasonography play a more limited, complementary role. This article discusses the embryologic and developmental anatomy features of the spine and spinal cord, together with some technical points and pitfalls, and the most common indications for pediatric spinal MR imaging.
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Affiliation(s)
- Andrea Rossi
- Neuroradiology Unit, Istituto Giannina Gaslini, Via Gerolamo Gaslini, 5, Genova 16147, Italy.
| | - Carola Martinetti
- Neuroradiology Unit, Istituto Giannina Gaslini, Via Gerolamo Gaslini, 5, Genova 16147, Italy
| | - Giovanni Morana
- Neuroradiology Unit, Istituto Giannina Gaslini, Via Gerolamo Gaslini, 5, Genova 16147, Italy
| | - Mariasavina Severino
- Neuroradiology Unit, Istituto Giannina Gaslini, Via Gerolamo Gaslini, 5, Genova 16147, Italy
| | - Domenico Tortora
- Neuroradiology Unit, Istituto Giannina Gaslini, Via Gerolamo Gaslini, 5, Genova 16147, Italy
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Abstract
Aims: After initial primary repair by inexperienced hands for the spectrum of pathological conditions in spinal dysraphism (SD), a few percentage of patients present with recurrent symptoms and worsening neurological status especially when primarily pathology is not identified and dealt properly. When the primary intradural tethering element is left untouched, worsening of symptoms is common. In this retrospective study, we tried to analyze the symptomatology, functional outcome at 1–2 months after the second surgery and associated complications. Subjects and Methods: All patients underwent second surgery at author's institution. Pre and post-operative data were evaluated using Necker –Enfants Malades (NEM) neurological and modified Hoffer ambulatory scale. Results: The main presenting complaints were bladder incontinence and limb weakness. Preoperative mean scores for motor and bladder were 3.56 and 2.78 out of 5, 2.67 out of 4, and 2.11 out of 3 for bowel and sensory function, respectively. Postoperative mean score for motor, sensory, bladder, and bowel function revealed good neurological improvement. Statistically neurological improvement in bladder and bowel function was significant. More than 60% of patients had normal ambulation at follow-up. Conclusions: Patients presenting with recurrent symptoms in an operated case of SD need to be investigated, cause of recurrence has to be identified, and if needed repeat surgery is recommended at the earliest. Long-standing neurological deficits can potentially improve, especially bladder and bowel function which gives a good quality of life to the patients. Furthermore, we want to stress the fact that since it is an intradural pathology, these cases should be operated by experienced neurosurgeons, and this fact should be made aware among referring doctors.
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Affiliation(s)
- Praful Suresh Maste
- Department of Neurosurgery, J N Medical College, KLES Prabhakar Kore Hospital and MRC, Belagavi, Karnataka, India
| | - Yadhu Kasetti Lokanath
- Department of Neurosurgery, J N Medical College, KLES Prabhakar Kore Hospital and MRC, Belagavi, Karnataka, India
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Abstract
OBJECTIVE The authors aimed to provide an updated and consolidated report on the epidemiology, management, and functional outcome of cases of myelomeningocele (MMC) in patients with scoliosis. METHODS A comprehensive literature search was performed using MEDLINE, Embase, Google Scholar, and the Cochrane Database of Systematic Reviews on cases of MMC in patients with scoliosis between 1980 and 2016. The initial search yielded 670 reports. After removing duplicates and applying inclusion criteria, we included 32 full-text original articles in this study. RESULTS Pooled statistical analysis of the included articles revealed the prevalence of scoliosis in MMC patients to be 53% (95% CI 0.42-0.64). Slightly more females (56%) are affected with both MMC and scoliosis than males. Motor level appears to be a significant predictor of prevalence, but not severity, of scoliosis in MMC patients. Treatment options for these patients include tethered cord release (TCR) and fusion surgeries. Curvature improvement and stabilization after TCR may be limited to patients with milder (< 50°) curves. Meanwhile, more aggressive fusion procedures such as a combined anterior-posterior approach may result in more favorable long-term scoliosis correction, albeit with greater complication rates. Quality of life metrics including ambulatory status and sitting stability are influenced by motor level of the lesion as well as the degree of the scoliosis curvature. CONCLUSIONS Scoliosis is among the most common and challenging comorbidities from which patients with MMC suffer. Although important epidemiological and management trends are evident, larger, prospective studies are needed to discover ways to more accurately counsel and more optimally treat these patients.
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Affiliation(s)
- Nishit Mummareddy
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michael C Dewan
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michael R Mercier
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Robert P Naftel
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - John C Wellons
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Christopher M Bonfield
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
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Karaaslan B, Ülkü G, Ucar M, Demirdağ TB, İnan A, Börcek AÖ. Intramedullary dermoid cyst infection mimicking holocord tumor: should radical resection be mandatory?-a case report. Childs Nerv Syst 2016; 32:2249-53. [PMID: 27184560 DOI: 10.1007/s00381-016-3108-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Dermoid cysts are benign lesions which contain epidermal and dermal elements. Dermoid cysts usually contain a dermal sinus tract but this is not mandatory. Dermoid cysts can manifest by spinal cord infection without a dermal sinus tract. An infected spinal dermoid cyst associated with a holocord spinal abscess poses diagnostic and surgical challenges. Although radical surgical drainage is considered as the main treatment modality for spinal abscess, less extensive surgery for microbiological sampling and appropriate antibiotic treatment can be another alternative modality. CASE DESCRIPTION A 1-year-old boy patient was admitted to our hospital with progressive paraplegia, bladder dysfunction, and neck rigidity. Medical history of the patient included recurrent urinary tract infection and cephalosporin treatments several times. Initial neurological examination revealed confusion, fever, neck rigidity, paraplegia (also, the motor power of the right upper extremity was three fifths that of the upper extremities). He had urinary and gastrointestinal retention. Conservative surgery was performed to take pathological and microbiological samples. With appropriate antibiotic regimen, the nuchal rigidity and fever improved dramatically. Infectious parameters in blood biochemistry significantly decreased after the antibiotic regimen. DISCUSSION AND CONCLUSION Holocord spinal abscesses are a rare entity. The source of the disease can be hemopoietic spread or contagious spread. The dermal sinus tract is major risk factor for contagious spread. The major hemopoietic sources are urogenital infection, endocarditis, and infective lung diseases. The hemopoietic spread is a more common source for pediatric patients. The thoracolumbar region is the most common site of involvement. Spinal infection has a tendency to extend longitudinally throughout spinal fibers. The pathogenesis of the holocord edema or syrinx is uncertain. The underlying etiology may be inflammation, infection, and associated venous congestion within the spinal canal. Also, CSF circulation alteration due to arachnoiditis may be another etiological factor. The most important entities on outcome are appropriate surgical treatment and antibiotic administration.
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Gürbüz MS, Aydín S, Bozdoğan D. Fully Endoscopic Interlaminar Detethering of Spinal Cord in Tethered Cord Syndrome: A Case Report and Technical Description. Korean J Spine 2016; 12:287-91. [PMID: 26834820 PMCID: PMC4731567 DOI: 10.14245/kjs.2015.12.4.287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 12/03/2015] [Accepted: 12/04/2015] [Indexed: 11/28/2022]
Abstract
A 19-year-old man presented with long lasting significant back and bilateral leg pain, and hypoesthesia on the lateral side of both his thighs for which he had undergone several courses of medication and bouts of physical therapy treatment. His urodynamic parameters were normal and lumbar magnetic resonance imaging (MRI) revealed a low-lying conus at the L2-3 level with a thickened fatty filum, and he was diagnosed as having tethered cord syndrome (TCS). The patient underwent a fully endoscopic detethering through an interlaminar approach with intraoperative neurophysiological monitoring. The thickened filum terminale was located and then the filum was coagulated and cut. The patient showed a significant improvement in his preoperative symptoms, and reported no problems at 2-year follow-up. Detethering of the spinal cord in tethered cord syndrome using a fully endoscopic interlaminar approach provides the advantages of minimal damage to tissues, less postoperative discomfort, early postoperative recovery, and a shorter hospitalization.
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Affiliation(s)
- Mehmet Sabri Gürbüz
- Department of Neurosurgery, Neurosurgery Clinic, Emsey Hospital, Ïstanbul, Turkey
| | - Salih Aydín
- Department of Neurosurgery, Neurosurgery Clinic, Emsey Hospital, Ïstanbul, Turkey
| | - Deniz Bozdoğan
- Department of Anesthesiology, Anesthesiology Clinic, Emsey Hospital, Ïstanbul, Turkey
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Abstract
OBJECTIVE The authors' objective was to identify the 100 most-cited research articles in the field of spinal oncology. METHODS The Thomson Reuters Web of Science service was queried for the years 1864-2015 without language restrictions. Articles were sorted in descending order of the number of times they were cited by other studies, and all titles and abstracts were screened to identify the research areas of the top 100 articles. Levels of evidence were assigned on the basis of the North American Spine Society criteria. RESULTS The authors identified the 100 most-cited articles in spinal oncology, which collectively had been cited 20,771 times at the time of this writing. The oldest article on this top 100 list had been published in 1931, and the most recent in 2008; the most prolific decade was the 1990s, with 34 articles on this list having been published during that period. There were 4 studies with Level I evidence, 3 with Level II evidence, 9 with Level III evidence, 70 with Level IV evidence, and 2 with Level V evidence; levels of evidence were not assigned to 12 studies because they were not on therapeutic, prognostic, or diagnostic topics. Thirty-one unique journals contributed to the 100 articles, with the Journal of Neurosurgery contributing most of the articles (n = 25). The specialties covered included neurosurgery, orthopedic surgery, neurology, radiation oncology, and pathology. Sixty-seven articles reported clinical outcomes. The most common country of article origin was the United States (n = 62), followed by Canada (n = 8) and France (n = 7). The most common topics were spinal metastases (n = 35), intramedullary tumors (n = 18), chordoma (n = 17), intradural tumors (n = 7), vertebroplasty/kyphoplasty (n = 7), primary bone tumors (n = 6), and others (n = 10). One researcher had authored 6 studies on the top 100 list, and 7 authors had 3 studies each on this list. CONCLUSIONS This study identified the 100 most-cited research articles in the area of spinal oncology. The studies highlighted the multidisciplinary and multimodal nature of spinal tumor management. Recognition of historical articles may guide future spinal oncology research.
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Affiliation(s)
- Rafael De la Garza-Ramos
- Tecnológico de Monterrey, School of Medicine and Health Sciences; and.,Neurology and Neurosurgery Institute, Centro Médico Zambrano Hellion, TecSalud, Monterrey, Mexico
| | - Mario Benvenutti-Regato
- Tecnológico de Monterrey, School of Medicine and Health Sciences; and.,Neurology and Neurosurgery Institute, Centro Médico Zambrano Hellion, TecSalud, Monterrey, Mexico
| | - Enrique Caro-Osorio
- Tecnológico de Monterrey, School of Medicine and Health Sciences; and.,Neurology and Neurosurgery Institute, Centro Médico Zambrano Hellion, TecSalud, Monterrey, Mexico
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Schwartz ES, Rossi A. Congenital spine anomalies: the closed spinal dysraphisms. Pediatr Radiol 2015; 45 Suppl 3:S413-9. [PMID: 26346147 DOI: 10.1007/s00247-015-3425-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 05/31/2015] [Accepted: 06/23/2015] [Indexed: 10/23/2022]
Abstract
The term congenital spinal anomalies encompasses a wide variety of dysmorphology that occurs during early development. Familiarity with current terminology and a practical, clinico-radiologic classification system allows the radiologist to have a more complete understanding of malformations of the spine and improves accuracy of diagnosis when these entities are encountered in practice.
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Strong MJ, Thompson EM, Roundy N, Selden NR. Use of lumbar laminoplasty vs. laminotomy for transection of the filum terminale does not affect early complication rates or postoperative course. Childs Nerv Syst 2015; 31:597-601. [PMID: 25578961 PMCID: PMC8520122 DOI: 10.1007/s00381-015-2615-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 01/02/2015] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Various techniques are used for spinal cord untethering. The purpose of this study was to compare patient characteristics, postoperative course, and early complications after laminotomy vs. laminoplasty for transection of the filum terminale for tethered cord release. METHODS Retrospective analysis of clinical and magnetic resonance imaging data was undertaken for all patients (<18 years) who underwent tethered cord release by transection of the filum terminale at Oregon Health & Science University, Doernbecher Children's Hospital, from 2000 to 2011. RESULTS Data from two hundred and forty-eight patients were analyzed. Mean age was 5.2 years (range 0.3 to 16.8 years). Access to the thecal space during surgery was achieved using laminotomy or laminoplasty in 82 (33.1 %) and 166 (66.9 %) patients, respectively. Laminoplasty patients were significantly younger than laminotomy patients (3.2 vs. 9.3 years, p<0.0001); other clinical and radiographic characteristics were similar between the groups. Nine patients (3.6 %) experienced early complications, including cerebrospinal fluid leak (n=2), suprafascial infection requiring surgical management and intravenous (IV) antibiotics (n=3) or IV antibiotics alone (n=1), a small area of peri-incisional cutaneous necrosis (n=1), perioperative seizures (n=1), and mild, transient malignant hyperthermia (n=1). There was no difference in the number of early complications between the two groups. Univariate and multivariate analyses revealed no significant risk factor for postoperative complication associated with technique. As judged by caregivers, independent of surgical technique, 97 % of patients improved after surgery. CONCLUSION There was no difference in complication risk when performing transection of the filum terminale for tethered cord release using laminotomy or laminoplasty.
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Affiliation(s)
- M J Strong
- Department of Neurological Surgery, Oregon Health & Science University, 3303 SW Bond Ave, Portland, OR, 97239, USA
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Abstract
OBJECT Tethered cord (TC) is a neurological disorder caused by tissue attachments that limit the normal movement of the spinal cord. A TC can be unmasked by a cutaneous abnormality or manifest clinically in myriad neurological, urological, and orthopedic symptoms. The relationship between TC and height is previously unknown. This study investigates the association between TC release and changes in height profiles in the pediatric population. METHODS Fifty-two children undergoing first-time TC release at a single institution were examined retrospectively. Clinical symptoms, radiographic findings, pre- and postoperative height, and height-for-age percentiles were recorded and analyzed. RESULTS Children with TC experienced a statistically significant increase in age-adjusted height percentiles after TC release (p = 0.0028), with a mean increase of 7 percentile points (from 48.1st to 54.9th percentile). When stratified by age, children 5 years or older (5-18 years) demonstrated a mean percentile increase of 10 percentile points (from 46.7th to 56.4th percentile) (p = 0.0001). Among the same age group, this effect scaled significantly with age (p = 0.02, beta coefficient -1.3). There was no significant difference in height-for-age after detethering surgery in children younger than 5 years. There was no significant association between the presence of clinical symptoms or specific radiographic findings and height outcomes after surgery. Overall, 56% of TC-related clinical symptoms improved after detethering (mean follow-up 4.6 months). Among children younger than 5 years, 82% of TC-related clinical symptoms improved after detethering (average follow-up 4.5 months); in children 5-18 years, 47% of symptoms improved after detethering (average follow-up 4.8 months). CONCLUSIONS The authors observed a statistically significant gain in height-for-age percentiles in children undergoing surgical release of TC. The authors' data suggest that such gains may be more significant in older children (≥ 5 years) and the increase appears to scale positively with youth in the older cohort. In this study, postoperative height gains did not appear to correlate with the presence of TC-related clinical symptoms or radiographic findings. Further investigation is necessary to elucidate any potential correlation between release of TC and height changes in children postoperatively.
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Affiliation(s)
- Kimberly A Foster
- Department of Neurosurgery, Children's Hospital of Pittsburgh, University of Pittsburgh, Pennsylvania; and
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Carr MC. Urological Results after Fetal Myelomeningocele Repair in Pre-MOMS Trial Patients at the Children's Hospital of Philadelphia. Fetal Diagn Ther 2014; 37:211-8. [DOI: 10.1159/000362932] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 04/16/2014] [Indexed: 11/19/2022]
Abstract
Introduction: Myelomeningocele patients deal with multiple medical issues, including lower extremity neurological deficits, bowel and bladder incontinence and the sequelae of hydrocephalus secondary to a Chiari II malformation. In utero intervention holds the promise of reversing some of the sequelae and improving outcome. Material and Methods: Between 1998 and 2003 (preceding the formal Management of Myelomeningocele Study, MOMS), an initial group of 58 patients underwent in utero repair of their myelomeningocele between 21 and 25 weeks' gestation. Long-term (5-year) follow-up has occurred in this cohort of patients. Previous reports have documented decreased incidence of ventriculoperitoneal shunting and neuromotor functioning, showing improved outcomes compared with historical controls. Results: Overall, 4 fetal deaths occurred, while the majority of patients returned for follow-up for up to 5 years after closure. Phone follow-up has also been conducted for those who could not return. To date, 10 patients (18.5%) have successfully toilet-trained, while 2 patients have bowel continence and 1 has bladder continence but requires enemas; 2 patients who successfully toilet-trained developed spinal dermoid cysts requiring surgical resection. Discussion: Historically, in utero repair of myelomeningocele patients yields a greater percentage of patients who have achieved continence compared with those undergoing postnatal repair. The MOMS trial will compare contemporary urological outcomes of those patients undergoing either prenatal or postnatal repair in a randomized fashion. The results of this trial showed a decreased need for ventriculoperitoneal shunting in those patients who underwent in utero repair as well as an improvement in lower extremity function.
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Vadivelu S, Desai SK, Illner A, Luerssen TG, Jea A. Infected lumbar dermoid cyst mimicking intramedullary spinal cord tumor: Observations and outcomes. J Pediatr Neurosci 2014; 9:21-6. [PMID: 24891897 PMCID: PMC4040026 DOI: 10.4103/1817-1745.131475] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
We report two unusual cases of a 17-month-old boy with a previously undiagnosed lumbar dermal sinus tract terminating in an intradural dermoid cyst and holocord edema or syrinx, presenting with paraparesis and sphincter dysfunction secondary to an intramedullary abscess and a 26-month-old boy with a previously undiagnosed lumbar dermal sinus tract terminating in an infected dermoid cyst and intramedullary abscess, presenting with recurrent episodes of meningitis and hydrocephalus. Pre-operative magnetic resonance imaging (MRI) studies in these patients were initially confused for an intramedullary spinal cord tumor; however, the presence of an associated dermal sinus tract made this diagnosis of neoplasm less likely. Total excision of the dermal sinus tract, debulking of the dermoid cyst and drainage of the intramedullary abscess through an L1-L5 osteoplastic laminoplasty and midline myelotomy, followed by long-term antibiotic therapy resulted in a good functional recovery. Post-operative MRI of the spine showed removal of the dermoid cyst, decreased inflammatory granulation tissue and resolution of the holocord edema or syrinx. We also performed a literature review to determine the cumulative experience of management of intramedullary abscess in this rare clinical setting.
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Affiliation(s)
- Sudhakar Vadivelu
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Neuro-spine Program, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Sohum K Desai
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Neuro-spine Program, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Anna Illner
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Neuro-spine Program, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Thomas G Luerssen
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Neuro-spine Program, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Andrew Jea
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Neuro-spine Program, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
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Segal LS, Czoch W, Hennrikus WL, Wade Shrader M, Kanev PM. The spectrum of musculoskeletal problems in lipomyelomeningocele. J Child Orthop 2013; 7:513-9. [PMID: 24432115 DOI: 10.1007/s11832-013-0532-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Accepted: 09/13/2013] [Indexed: 02/03/2023] Open
Abstract
PURPOSE Patients with lipomyelomeningocele (LMMC) represent a unique population within the spectrum of spinal dysraphism. The natural history of LMMC remains poorly defined. The description and prevalence of the presenting orthopaedic clinical signs and symptoms for LMMC have been infrequent and often documented only in general terms. The goal of this study is to define the patterns and prevalence of presenting clinical musculoskeletal signs and symptoms in LMMC patients. METHODS This study was a retrospective review of charts of all patients identified as having LMMC in our spina bifida clinic. Patient charts with incomplete data or diagnoses other than LMMC were excluded from the analysis. Data collected included age at initial tethered cord release (TCR); repeat TCR; limb length discrepancy; foot deformities; asymmetry of motor and sensory deficits; presence of scoliosis; orthotic needs; assistive devices; functional status. RESULTS We identified 32 patients with LMMC (21 female and 11 male patients). The majority of patients had their primary TCR by ≤1 year of age (59 %), with 22 and 19 % having primary TCR at ages 1-15 and >15 years, respectively. Fifteen patients had at least one repeat TCR, with ten of these having more than one repeat TCR. A significant relationship was noted between low back/radicular pain and repeat TCR (p < 0.001). Ten patients (31%) had a limb length discrepancy of >2.5 cm, and 53 % of patients had asymmetric involvement. Nine patients (28 %) had scoliosis of whom only one required operative treatment. Fifteen patients had foot deformities. Thirteen patients (41 %) had two or more orthopaedic procedures in addition to other neurologic or urologic procedures. CONCLUSION The presenting musculoskeletal clinical signs and symptoms in patients with LMMC are uniquely different in terms of both pattern and frequency compared to myelomeningocele and other forms of spinal dysraphism. We noted a high prevalence of asymmetrical involvement, a high operative burden, and a high rate of repeat symptomatic tethered cord syndrome requiring TCR. As previously noted by others, TCR in LMMC does not prevent long-term functional deterioration. These findings may be important to our colleagues providing counsel to their patients with LMMC and to their families.
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Caldarelli M, Boscarelli A, Massimi L. Recurrent tethered cord: radiological investigation and management. Childs Nerv Syst 2013; 29:1601-9. [PMID: 24013330 DOI: 10.1007/s00381-013-2150-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 05/06/2013] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Recurrent tethered cord (RTC) is almost the rule after the repair of myelomeningocele and quite frequent after the repair of lipomyelomeningocele, resulting from the adhesions of the placode within a too narrow spinal canal. About one-third of patients with myelomeningocele and 10 % of those with spinal lipoma develop symptomatic RTC, mainly caused by the ischemic-metabolic injuries due to the cord stretching. The goal of this review is to provide information about the pathophysiology, the radiological picture, and the management of RTV according to the pertinent literature and the authors' experience. RADIOLOGICAL INVESTIGATION The magnetic resonance imaging (MRI) picture is characterized by a low position of the conus and by tethering of the spinal cord to the subcutaneous scar or to the inner surface of the spinal canal. The radiological work-up always includes brain MRI, to rule out other possible causes of late neurological deterioration (as shunt malfunction), and MRI of the whole spinal cord, to detect possible associated lesions (syringomyelia, dermoids, etc.). X-rays and/or computed tomography scan of the spine is required for the assessment of scoliosis or other bony malformations. MANAGEMENT The surgical treatment is planned after a multidisciplinary neurological, urological, orthopedic, physiatric, and radiological evaluation. The surgical detethering is carried out cautiously, possibly with electrophysiological intraoperative monitoring. Surgery ensures improvement or stability of the clinical picture in 70-80 % of cases, the remaining 20-30 % of patients needing multiple operations for their recovery. Complications may affect up to one-third of operated patients, being mainly represented by CSF leak, pseudomeningocele, and shunt malfunction.
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Affiliation(s)
- Massimo Caldarelli
- Pediatric Neurosurgery, Catholic University Medical School, Largo A. Gemelli, 8, 00168 Rome, Italy
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Morioka T, Hashiguchi K, Mukae N, Sayama T, Sasaki T. Neurosurgical management of patients with lumbosacral myeloschisis. Neurol Med Chir (Tokyo) 2013; 50:870-6. [PMID: 20885122 DOI: 10.2176/nmc.50.870] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Myeloschisis is the most serious and complex congenital anomaly in spina bifida manifesta (cystica). However, with improvements in medical care and increased understanding of its pathophysiology, the associated long-term morbidity and mortality rates have been significantly reduced. This article reviews various issues associated with the neurosurgical management of patients with myeloschisis, such as perinatal management, repair surgery for myeloschisis, neurosurgical management of hydrocephalus, Chiari malformation type II, tethered cord syndrome and epilepsy, and intrauterine fetal surgery.
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Affiliation(s)
- Takato Morioka
- Department of Neurosurgery, Kyushu Rosai Hospital, 1-3-1 Kuzuhara-takamatsu, Fukuoka, Japan.
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Amarante MA, Shrensel JA, Tomei KL, Carmel PW, Gandhi CD. Management of urological dysfunction in pediatric patients with spinal dysraphism: review of the literature. Neurosurg Focus 2013; 33:E4. [PMID: 23025445 DOI: 10.3171/2012.7.focus12232] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An intact, fully functional spine is the result of a complex sequence of embryological events involving both nervous and musculoskeletal system precursors. Deviations from this highly ordered system can result in congenital abnormalities ranging from clinically insignificant cosmetic changes to CNS malformations that are incompatible with life. Closure of the neural tube, which is believed to be the embryological event gone awry in these cases, is complete by just 28 days' gestation, often before pregnancy is detected. Although progress has been made to help prevent neural tube defects in the children of those attempting to conceive, these congenital deformities unfortunately continue to affect a startling number of infants worldwide each year. Furthermore, the precise mechanisms governing closure of the neural tube and how they might be interrupted remain elusive. What is known is that there are a large number of individuals who must deal with congenital spine dysraphism and the clinical sequelae on a daily basis. Bladder and urinary dysfunction are frequently encountered, and urological care is a critical, often neglected, component in the lifelong multidisciplinary approach to treatment. Although many treatment strategies have been devised, a need remains for evidence-based interventions, analysis of quality of life, and preemptive education of both caregivers and patients as they grow older. Pediatric neurosurgeons in particular have the unique opportunity to address these issues, often in the first few days of life and throughout pre- and postoperative evaluation. With proper management instituted at birth, many patients could potentially delay or avoid the potential urological complications resulting from congenital neurogenic bladder.
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Affiliation(s)
- Matthew A Amarante
- Department of Neurological Surgery, New Jersey Medical School, University of Medicine and Dentistry of New Jersey, Newark, NJ 07101-1709, USA
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Romagna A, Suchorska B, Schwartz C, Tonn JC, Zausinger S. Detethering of a congenital tethered cord in adult patients: an outcome analysis. Acta Neurochir (Wien) 2013; 155:793-800. [PMID: 23471599 DOI: 10.1007/s00701-013-1652-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 02/08/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND Tethered spinal cord syndrome (TCS) is characterized by attachment of the spinal cord down toward the tail end of the spine, comprising the danger of myelopathic symptoms. We retrospectively analyzed postoperative neurological outcome in adult patients with congenital TCS with special regard to the extent of resection of concomitant intraspinal lipomas. METHODS Medical records of 27 adult patients with congenital TCS (both with and without associated spinal lipomas) undergoing microsurgical detethering were systematically analyzed. Neurophysiological monitoring was available and feasible for all cases. Outcome parameters were preoperatively and postoperative neurological status; Wilcoxon rank test was used for statistical analysis. RESULTS In all patients, complete detethering was achieved. While urinary symptoms remained stable, all patients showed a non-significant tendency towards improvement of sensorimotor deficits. Both, patients with and without spinal lipoma experienced a significant postoperative amelioration of back pain. Patients with lipoma were found to suffer significantly less from radicular pain postoperatively (3/16). Furthermore, patients with a history of pain shorter than 1 year showed a significantly better chance for postoperative relief from back and radicular pain. The extent of lipoma resection had no significant impact on postoperative outcome. CONCLUSIONS Adult patients with symptomatic TCS profit from detethering, especially regarding relief of lower back and radicular pain. Complete removal of associated spinal lipomas does not seem to be mandatory for achieving a satisfying result.
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Hayashi T, Takemoto J, Ochiai T, Kimiwada T, Shirane R, Sakai K, Nakagawa H, Tominaga T. Surgical indication and outcome in patients with postoperative retethered cord syndrome. J Neurosurg Pediatr 2013; 11:133-9. [PMID: 23176140 DOI: 10.3171/2012.10.peds12220] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT After untethering of spinal dysraphism, some patients present with neurological deterioration, defined as retethered cord syndrome. It is known that surgical untethering is an option for improving the symptoms of retethered cord syndrome. Previous reports have shown that postoperative improvement in retethered cord syndrome was noted in the majority of patients presenting with pain, and in more patients with motor weakness than in those with urological symptoms. The authors speculate that subjective symptoms may be detected while symptoms are still reversible. In contrast, changes in urological function are less easy to diagnose, and delays in treatment may be complicated by advanced symptoms. In this study, patients with retethered cord syndrome were evaluated to investigate the benefits of performing routine urodynamic study to detect detrusor overactivity, which is considered to be a subclinical change of urological function, and to investigate the efficacy of early untethering surgery on the symptoms of retethered cord syndrome. METHODS Surgical indications and outcomes of 78 untethering operations (20 for myelomeningocele, 58 for spinal lipoma) for retethered cord syndrome were examined. Diagnosis of retethered cord syndrome was defined by a multidisciplinary spina bifida team, and included routine urodynamic study. RESULTS Preoperative symptoms included urological symptoms (70%), lower-extremity symptoms (45%), and others. The most frequent urological symptom was detrusor overactivity detected by urodynamic study (88.7%). Urinary incontinence was only found in 9.4% of patients. Postoperatively, progressive motor weakness improved in all patients, and sensory symptoms improved in 94%. Urological symptoms improved in 80% of the patients with urinary incontinence and in 75% of the patients with detrusor overactivity. Postoperative urodynamic study showed a significant increase in bladder volume (p < 0.05). The most common complication was temporary lower leg paresthesia that recovered at follow-up. Aggravated dysuria was noted in 3 patients. CONCLUSIONS Early untethering operations offer symptomatic relief to patients with retethered cord syndrome. Urodynamic study findings, especially detrusor overactivity, are considered to be the most significant indicators for early diagnosis of retethered cord syndrome.
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Affiliation(s)
- Toshiaki Hayashi
- Departments of Neurosurgery, Miyagi Children’s Hospital, Sendai, Japan.
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