Does the external remote controller ’s reading correspond to the actual lengthening in magnetic-controlled growing rods?

ConclusionThe reading on the ERC does not equate to the actual rod lengthening. The authors would recommend that clinicians using the MCGR for the treatment of early-onset scoliosis include pre- and post-extension imaging (radiographs or ultrasound) to confirm extension lengths at each outpatient extension. In centres with ultrasound facilities, we would suggest that patients should have ultrasound to monitor each lengthening after distraction but also 6-month radiographs.Graphic abstractThese slides can be retrieved under Electronic Supplementary Material.
Source: European Spine Journal - Category: Orthopaedics Source Type: research

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Radiation exposure with repeated radiography required at follow-up poses serious health concerns for scoliosis patients. Although spinous process angle (SPA) measurement of spinal curvatures with ultrasound has been reported with promising results, an evidence-based account on its accuracy for translational application remains undefined. This prospective study involved 952 idiopathic scoliosis patients (75.7% female, mean age 16.7 ± 3.0 y, Cobb 28.7 ± 11.6°). Among 1432 curves (88.1%) detected by ultrasound, there was good correlation between radiologic Cobb angles measured manually on EOS (E_Cobb) whole-...
Source: Ultrasound in Medicine and Biology - Category: Radiology Authors: Tags: Original Contribution Source Type: research
AbstractAdolescent idiopathic scoliosis (AIS) is a three-dimensional (3D) spinal deformity. Current practice uses the Cobb method to measure spinal severity on postero-anterior (PA) radiographs. This method may underestimate spinal deformity and exposes patients to ionizing radiation, increasing the risk of cancer. This paper reports a new 3D ultrasound method using the voxel-based reconstruction technique with bilinear interpolation to reconstruct a 3D spinal image and measure true spinal curvature on the plane of maximal curvature (PMC). Axial vertebral rotation (AVR) was measured on the 3D image and utilized to estimate...
Source: Medical and Biological Engineering and Computing - Category: Biomedical Engineering Source Type: research
Background: In the treatment of early onset scoliosis (EOS), there has been a trend to use magnetically controlled growing rods (MCGR) in order to reduce the number of surgeries. To confirm the amount of lengthening, spine radiographs were required. Recently, ultrasound (US) has been added to monitor lengthening of MCGR to avoid radiation exposure. Our aim was to determine whether US is as accurate as plain radiography (x-ray) in determining the amount of length achieved at individual MCGR lengthening episodes. Methods: Retrospective study; inclusion criteria: EOS cases with dual MCGR with minimum 12 months follow-up....
Source: Journal of Pediatric Orthopaedics - Category: Orthopaedics Tags: Spine Source Type: research
ConclusionThe PMC Cobb and VAR can be measured reliably on US images. Future studies should validate the PMC Cobb angle and to include a wider Cobb angle range on participants.
Source: Spine Deformity - Category: Orthopaedics Source Type: research
CONCLUSIONS: There is a larger degree of lateral deviation of the LP on the concave side of scoliosis compared to medial deviation on the convex side. These deviations remained consistent irrespective of the direction of scoliosis. A review of the imaging studies and pre procedural ultrasound assessment of anatomy should be strongly considered prior to needle puncture. In patients with severe DS, an alternative approach may be considered to avoid the possibility of visceral organ injury. PMID: 30035457 [PubMed - as supplied by publisher]
Source: Minerva Anestesiologica - Category: Anesthesiology Tags: Minerva Anestesiol Source Type: research
This study aimed to investigate effects of postural change in the spine deformity in the coronal plane of AIS patients using a 3D ultrasound imaging system.MethodsThis was a prospective study that recruited 72 AIS patients at a single institute. All patients were scanned twice in the sitting and sitting forward bending postures. A coronal ultrasound image showing the spinal curvature was generated after each scan and the spinous process angle (SPA) representing the deformity was manually measured from it. Correlation of SPAs under sitting and sitting forward bending postures was analyzed.ResultsIn the comparison test, it w...
Source: European Spine Journal - Category: Orthopaedics Source Type: research
We describe the unique case of a child with pneumonia presenting with acute scoliosis and abdominal pain, without any typical features of the disease. A 10-year-old girl presented to the emergency department on 3 consecutive days with right-sided abdominal pain. There were no associated features, in particular, no fevers or respiratory symptoms. On the first 2 presentations, observation,examination, and blood test findings were unremarkable. Chest x-ray and abdominal ultrasound were also normal. On the third presentation a marked scoliosis was noted and abdominal examination revealed right-sided tenderness with rebound. T...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
Conclusions: Our study demonstrates a higher prevalence of hip dysplasia in patients with PWS than previously documented. The age at which hip dysplasia develops remains unknown; therefore, we recommend an ultrasound screening for all infants with PWS at 6 weeks of age and subsequent radiographic studies at 1, 2, 5, 10, and 15 years of age to allow for early diagnosis and intervention. Level of Evidence: Level III—retrospective comparative study.
Source: Journal of Pediatric Orthopaedics - Category: Orthopaedics Tags: Hip Source Type: research
Discussion VATER association was first described in the 1970s with additional congenital malformations being added to the association so it is most often called VACTERL association. It is a highly heterogeneous, overlapping condition estimated to occur in ~1/10,000-40,000 births. The cause is unknown. In animal models, some signaling pathway gene mutations have phenotypes of VACTERL association. Experts suggest that patients having at least 2 components should be further evaluated (at least 3 for diagnosis) for VACTERL and other diseases in its differential diagnosis. There are more than 30 syndromes, mutations and diseas...
Source: PediatricEducation.org - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
ConclusionsThe ultrasound imaging method can be applied to identify curve progression in children with IS. Four degree is the preferred threshold value to detect the curve which had progressed, since it also had the lower rate of undetected progressed cases (false negatives).
Source: European Spine Journal - Category: Orthopaedics Source Type: research
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