Publications by authors named "Sven Bamps"

13 Publications

  • Page 1 of 1

Intra operative assessment of the coronal balance in spinal deformity surgery : a technical note and retrospective study.

Acta Orthop Belg 2021 Mar;87(1):175-179

Obtaining a spine that is well balanced after fusion for scoliotic deformity is primordial for the patients' quality of life. A simple T-shaped instrument combined with standard intraoperative fluoroscopy can be of great help to evaluate the coronal alignment quickly. The aim of this study was to evaluate if a T-shaped device could predict the postoperative coronal balance. Before finalization of the rod fixation, the balance was checked by verifying the relationship between the T-shaped instrument and the upper instrumented vertebra (UIV), and final adjustments were made to correct the coronal balance. A retrospective study was conducted on 48 patients who underwent surgery to correct scoliotic deformity. Intraoperative and postoperative coronal alignment was measured independently by two observers. The mean intraoperative horizontal offset measured between T-shaped instrument and the center of the UIV was 1,69mm to the right with a standard deviation (SD) of 12,43 mm. On postoperative full spine radiographs, the mean offset between the centra sacral vertical line and the center of the UIV was 2,44mm to the left with a SD of 13,10mm. There is no significant difference in coronal balance between both measurements (p=0,12). With this technique we were able to predict the postoperative coronal balance in all but one patient (97,92%). We conclude that the use of a simple T-shaped instrument can provide adequate intraoperative assessment of coronal balance in correcting scoliotic deformity. Level of evidence : IV - case series.
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March 2021

What to know about schwannomatosis: a literature review.

Br J Neurosurg 2020 Dec 2:1-4. Epub 2020 Dec 2.

Department of Neurosurgery, Jessa Hospital, Hasselt, Belgium.

Background: Schwannomatosis is a relatively rare disorder and is related to neurofibromatosis type 2. Although there is clinical overlap between schwannomatosis and neurofibromatosis type 2, these diseases have to be regarded as separate entities due to the genetic origin and course of the disease.

Methods: A comprehensive review of the literature was conducted for relevant studies using Pubmed and Cochrane databases to discuss the epidemiology, clinical presentation, diagnostic criteria, pathological and imaging features, treatment and genetics of schwannomatosis.

Results: Germline mutations SMARCB1 and LZTRI together with the gene play a role in the pathophysiology of schwannomatosis. The most common symptom is pain with affection of the spine and peripheral nerves in the majority of patients. High quality contrast enhanced MRI scan is the imaging modality of choice. Treatment is conservative if asymptomatic and surgical if symptomatic. The goal is symptom control with preservation of neurological function.

Conclusion: Schwannomatosis is a relatively rare disorder in which the main goal is to preserve neurological function.
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http://dx.doi.org/10.1080/02688697.2020.1836323DOI Listing
December 2020

Retro-odontoid pseudotumor (pannus) with Forestier's disease presenting with severe tetraparesis: A case report and literature review.

Surg Neurol Int 2020 16;11:111. Epub 2020 May 16.

Department of Neurosurgery, Jessa Hospital Hasselt, Hasselt, Belgium.

Background: A retro-odontoid pannus is often associated with inflammatory diseases. It can also have a noninflammatory cause due to chronic atlantoaxial instability.

Case Description: Here, we report a patient with diffuse idiopathic skeletal hyperostosis and a severe noninflammatory retro-odontoid pannus who rapidly improved after posterior craniocervical decompression and arthrodesis.

Conclusion: Transoral resection of the pannus, followed by posterior stabilization, is a common treatment for this condition. The pannus can, however, also reduce after posterior stabilization alone (e.g., craniocervical decompression).
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http://dx.doi.org/10.25259/SNI_163_2020DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7265450PMC
May 2020

Spinal cord herniation after brachial plexus injury.

Surg Neurol Int 2017 27;8:305. Epub 2017 Dec 27.

Department of Neurosurgery, University Hospital Leuven, Belgium.

Background: Spinal cord herniation (SCH) is an uncommon cause of myelopathy. Documented trauma is a rare cause, and most cases are idiopathic. One special type of trauma that may lead to SCH is a brachial plexus injury. We report a case of SCH with delayed neurological symptoms after a brachial plexus injury. We reviewed the literature and illustrated the closing technique as described by Batzdorf.

Case Description: Following a motor vehicle accident, a 27-year-old male sustained a brachial plexus injury and multiple left-sided nerve root avulsions (C6, C7, and C8) resulting into a full paralysis of the left arm. There was also a loss of pain and temperature sensation on the right side of the body. He underwent reconstructive surgery without any functional improvement. After 6 to 7 years his condition worsened. Magnetic resonance imaging revealed a left-sided SCH at the level of C7. He underwent a C6-C7 laminectomy which revealed a pseudomeningocele at C6-C7 accompanied by focal SCH at the location of the C7 root. The SCH was reduced intradurally and the dural defect of the meningocele was covered with a Neuropatch membrane wrapped around the spinal cord (between the spinal cord and the dura) according to the technique described by Batzdorf. Postoperatively, the neurological symptoms improved.

Conclusion: SCH should be surgically repaired utilizing the technique described by Batzdorf if further neurological deficits develop.
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http://dx.doi.org/10.4103/sni.sni_329_17DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5764918PMC
December 2017

Pneumothorax after Shoulder Arthroscopy: A Rare but Life-threatening Complication.

J Orthop Case Rep 2016 Sep-Oct;6(4):3-5

Department of Traumatology, University Hospitals Leuven, Leuven, Belgium.

Introduction: Arthroscopy has become a major diagnostic tool and treatment option for shoulder pathology. However rare, respiratory complications such as a pneumothorax have been reported in patients undergoing shoulder arthroscopy. Surgery - as well as anesthesiology-related factors and respiratory comorbidity have been hypothesized to intervene in the onset of respiratory complications.

Case Report: We report the case of a 42-year-old male patient who underwent an arthroscopy of the left shoulder. The anesthesia, the surgical procedure as well as the post-operative course went uncomplicated. The patients were discharged 6 h after the end of the surgical procedure. 4 h after discharge, however, the patient developed severe respiratory distress and signs of hemodynamic shock due to an ipsilateral (tension) post-operative pneumothorax. The available literature is reviewed focusing on the possible pathogenic mechanisms implying the development of this complication.

Conclusion: The presence of a pneumothorax after shoulder arthroscopy is a rare but dangerous complication. It can primarily be attributed to rupture of parietal pleura, rupture of visceral pleura, and alveolar rupture or trauma during anesthesia. In our patient, we speculate that a rupture of parietal pleura was the underlying cause. This can be related to the surgical methodology (portal placement and continuous pump infusion with intermittent suction) and subacromial distention used during the procedure. Awareness, prompt recognition, and treatment are necessary.
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http://dx.doi.org/10.13107/jocr.2250-0685.542DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5288619PMC
February 2017

A Multidisciplinary Infection Control Bundle to Reduce the Number of Spinal Cord Stimulator Infections.

Neuromodulation 2017 Aug 24;20(6):563-566. Epub 2017 Jan 24.

Department of Medical Microbiology, GZA Hospitals, Wilrijk, Antwerp, Belgium.

Objective: To investigate the effect of a quality improvement project that resulted in an infection control bundle to reduce the number of spinal cord stimulator (SCS) infections.

Materials And Methods: The study was performed in a single center for neuromodulation from January 1, 2014, through May 31, 2016. In response to a high number of surgical site infections (SSIs) after SCS surgery, a multidisciplinary team analyzed the surgical process and developed an infection prevention bundle consisting of five items: 1) showering and decolonization for five days prior to surgery and showering in the hospital on the morning of surgery; 2) performing the SCS implantation as the first in the daily operating room (OR) program; 3) maintaining a minimal number of people in the OR; 4) providing home care nurses with a folder with SCS wound care instructions including pictures; 5) giving oral specific wound care instructions to patients. The number of infections was calculated for the baseline, implementation, and sustainability phases.

Results: A total of 410 SCS surgeries were performed during the study period. In the preintervention phase, 26/249 (10.4%) SCS surgeries were infected. During the implementation and sustainability phase, 2/59 (3.4%) and 1/102 (1.0%) SCS surgeries were infected, respectively. The reduction in the number of infections in pre and postintervention phase was statistically significant (p = 0.003).

Conclusion: Multidisciplinary measures to reduce SSIs reduced the number of SCS associated infections in our study setting.
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http://dx.doi.org/10.1111/ner.12555DOI Listing
August 2017

Posterolateral approach in a neurofibromatosis type-I patient with severe dystrophic thoracic kyphoscoliosis: A case report, cadaver study, and literature review.

J Neurosci Rural Pract 2015 Jan;6(1):84-6

Department of Traumatology, University Hospital Leuven, Leuven, Belgium.

Neurofibromatosis type-I (NF-I) is an autosomal-dominant hereditary disorder, in which spinal skeletal deformities are one of the manifestations and manifest as acquired abnormalities and present as short, sharp, and angular (usually thoracic) curves. The scoliosis can be severe requiring surgical intervention. The surgical procedure can be difficult because of scalloping of the vertebral bodies and dural ectasia. We state that in selected cases of severe thoracic dystrophic kyphoscoliosis in NF-I, the posterolateral approach is the only possible method to visualize the anterior thoracic spinal cord, perform anterior decompression, and to stabilize the thoracic deformity, because of the anterior dural ectasias and the kyphosis limiting an anterior procedure.
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http://dx.doi.org/10.4103/0976-3147.143208DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4244797PMC
January 2015

Dabigatran-associated spontaneous acute cervical epidural hematoma.

World Neurosurg 2015 Feb 16;83(2):257-8. Epub 2014 Oct 16.

KU Leuven - University of Leuven, Department of Neurosciences, Experimental Neurosurgery and Neuroanatomy, University Hospitals Leuven, Leuven, Belgium.

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http://dx.doi.org/10.1016/j.wneu.2014.10.012DOI Listing
February 2015

Giant arachnoid granulations mimicking pathology. A report of three cases.

Neuroradiol J 2014 Jun 17;27(3):316-21. Epub 2014 Jun 17.

Department of Radiology, UZ Leuven, Campus Gasthuisberg; Leuven, Belgium.

We describe three cases of incidentally found lesions in the dural venous sinuses on magnetic resonance imaging, that other had erroneously considered pathological entities. We made the diagnosis of giant arachnoid granulations. The differential diagnosis with thrombosis or intrasinusal tumoral lesions was easily made on the basis of three typical radiological features of the granulations: the hyperintensity of the lesions on FLAIR, a blood vessel within the lesion and bone erosion.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4202885PMC
http://dx.doi.org/10.15274/NRJ-2014-10047DOI Listing
June 2014

What the neurosurgeon should know about hemangioblastoma, both sporadic and in Von Hippel-Lindau disease: A literature review.

Surg Neurol Int 2013 Nov 8;4:145. Epub 2013 Nov 8.

Department of Neurosurgery, University Hospitals Leuven, Herestraat, Belgium.

Background: Hemangioblastomas are associated with Von Hippel-Lindau disease (VHLD) in 10-40% of cases. Based upon a literature review we state the core features the neurosurgeon should be aware of.

Methods: We performed a selective literature (Cochrane and Medline) search for hemangioblastoma, both sporadic and VHL associated. We reviewed general characteristics (epidemiology, symptomatology, diagnosis, and management) and focused on follow-up as well as screening modalities for sporadic and VHL associated lesions.

Results: Based upon our literature search, we established guidelines for screening and follow-up in both sporadic and VHL associated hemangioblastoma patients.

Conclusions: Screening for retinal angiomas, abdominal masses, and pheochromocytomas as well as genetic analysis is recommended for every patient with a newly diagnosed hemangioblastoma. Follow-up is by magnetic resonance imaging (MRI) of the clinical neuronal region at 6 and at 12-24 months postoperatively. For VHL-associated hemangioblastomas yearly investigation for craniospinal hemangioblastoma by MRI and yearly screening and follow-up for retinal angiomas is recommended. Annual abdominal ultrasound with triennial computed tomography (CT) imaging for abdominal masses is postulated. Annual audiometry is to be performed for possible endolymphatic sac tumor, detailed radiographic imaging of the skull base should be performed upon abnormality in auditory testing. Investigations for cystadenomas of the epidydimis and broad ligament only are mandatory on indication. Annual investigation for pheochromocytoma is recommended.
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http://dx.doi.org/10.4103/2152-7806.121110DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3841920PMC
November 2013

Multiple granular cell tumors in a child with Noonan syndrome.

Eur J Pediatr Surg 2013 Jun 22;23(3):257-9. Epub 2012 Aug 22.

Department of Surgical Oncology, UZ Leuven, Leuven, Belgium.

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http://dx.doi.org/10.1055/s-0032-1322537DOI Listing
June 2013
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