Multicenter Trial of a Noninvasive Stimulation Method for Idiopathic Scoliosis

Brown, John C.; Axelgaard, Jens; Howson, David C.

doi:10.1097/00007632-198405000-00010

Cited by 18 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, we have observed that even in a same radiogram or different radiograms with a stable curve, measurement of Cobb's angle shows different values. Most investigators have considered 5 degrees of change or more between two successive radiograms to be clinically important, even though there is no firm evidence to support the use of this figure [3,19]. Lonstein and Carlson [18], in their study of the natural progression of scoliosis, used a 5-degree difference between the Cobb's angles on two successive radiographs as the criterion of progression.…”

Section: Introductionmentioning

confidence: 99%

Observer reliability between juvenile and adolescent idiopathic scoliosis in measurement of stable Cobb’s angle

et al. 2008

View full text Add to dashboard Cite

It is a measurement of Cobb's angles between adolescent (AIS) and juvenile (JIS) idiopathic scoliosis who had stable curves (variation <5 degrees) in more than three visits. Main objective of this paper is to measure inter- and intra-observer reliability of measurements between AIS and JIS who had stable curves in regular follow-up. Twenty-nine JIS and 44 AIS patients who had stable curves without bracing were identified using PACS system. Two observers independently measured Cobb's angle twice on first, during follow-up and final radiogram using computer-based digital radiogram. Both observers were given pre-decided level of upper and lower end plates. Inter- and intra-observer reliability of the measurement was calculated using Pearson correlation-coefficient test between JIS and AIS group. There was no significant difference in Cobb's angle in all measurements by both observers either in JIS (p = 0.756, range 0.706-0.815; ANOVA) or AIS (p = 0.871, range 0.795-0.929; ANOVA) group which suggested that there is no significant difference in Cobb's angle in repeated measurements. Intra-observer reliability for JIS (r = 0.600, range 0.521-0.751; Pearson test) was less than AIS (r = 0.969, range 0.943-0.984; Pearson test); and similarly, inter-observer reliability for JIS (r = 0.547, Pearson test) was also less than AIS (r = 0.961, Pearson test) which indicates that Cobb's angle measurement is less reliable in patients who have juvenile idiopathic scoliosis. Using the identical condition for measurements in both the groups, we could find only one reason for less reliability in JIS group and that is poor demarcation of the vertebral end-plates in this group. This poor inter- and intra-observer reliability in JIS due to ill-defined endplates can be reduced by measuring all previous curves along with latest curves at the same time during the follow-up of patients with JIS to decide about the progression of curves and treatment options.

show abstract

Section: Introductionmentioning

confidence: 99%

Observer reliability between juvenile and adolescent idiopathic scoliosis in measurement of stable Cobb’s angle

et al. 2008

View full text Add to dashboard Cite

show abstract

“…7,8,[11][12][13] Although this may be an accurate method for the relatively rectangular-shaped vertebrae of the thoracolumbar spine, particularly in the coronal plane, it may not be optimal for measuring sagittal alignment of the cervical spine where the vertebrae have a trapezoidal shape in the sagittal plane and a rounded and often poorly definable antero-superior corner.…”

Section: Discussionmentioning

confidence: 99%

Measurement Variability in the Assessment of Sagittal Alignment of the Cervical Spine

Silber¹,

Lipetz²,

Hayes³

et al. 2004

Journal of Spinal Disorders &Amp; Techniques

View full text Add to dashboard Cite

show abstract

“…This error has been investigated intensively and is suggested to be around ±5° [11, 12]. Most investigators have considered 5° of change or more to be clinically important [13–15], and in clinical setting, it is common for practitioners to make recommendations concerning treatment on the basis of an increase in the curve of 5° between two successive radiographs [12]. Based on above findings, if correction loss of the thoracic curve is more than 5°, we divided all cases into two groups.…”

Section: Methodsmentioning

confidence: 99%

Radiographic evaluation of posterior selective thoracolumbar or lumbar fusion for moderate Lenke 5C curves

Zhang

Lin

Zhang

et al. 2016

Arch Orthop Trauma Surg

View full text Add to dashboard Cite

IntroductionPosterior selective thoracolumbar or lumbar (TL/L) fusion with pedicle screw constructs for adolescent idiopathic scoliosis (AIS) has been studied in a few researches. However, few studies have discussed the indication for selective TL/L fusion and the behaviors of its adjacent disc angle. The present study aims to discuss the indication for posterior selective TL/L fusion and the behavior of the adjacent disc angle.Methods45 consecutive cases of AIS undergoing posterior selective TL/L fusion were retrospectively evaluated, with an average follow-up of 36 months. Radiographs were reviewed to determine the coronal curve magnitude and the sagittal alignment preoperatively, postoperatively and at final follow-up. Thoracic curves in groups A had a correction loss of more than 5°, while thoracic curves in group B had a correction loss of not more than 5°.ResultsThe coronal curve magnitude of the TL/L curve averaged 44° preoperatively and it was corrected to 6° immediately with a correction rate of 84.8 %. At final follow-up it was 9° with a correction loss of 3°. The minor thoracic curve was 26° preoperatively, and the convex side bending curve magnitude averaged 8° with a flexibility of 72.7 %. It was corrected to 13° immediately with a spontaneous correction of 48.5 %. At final follow-up it was 14° with a correction loss of 1°. UIVA decreased from 4° to 2° after surgery, and it was 2° at final follow-up. LIVA decreased from 7° to 4° after surgery, and it was 5° at final follow-up. Maximal correction of TL/L curves in group A is significantly less than that in group B. 1 patient received revision surgery to fuse the progressive thoracic curve.ConclusionPosterior selective TL/L fusion with pedicle screw constructs allows for spontaneous thoracic correction and maintains coronal and sagittal balance during the follow-up. Maximal correction instead of undercorrection was recommended for moderate Lenke 5C curves. Disc wedging could be improved after surgery and well maintained during the follow-up.

show abstract

Multicenter Trial of a Noninvasive Stimulation Method for Idiopathic Scoliosis

Cited by 18 publications

References 0 publications

Observer reliability between juvenile and adolescent idiopathic scoliosis in measurement of stable Cobb’s angle

Observer reliability between juvenile and adolescent idiopathic scoliosis in measurement of stable Cobb’s angle

Measurement Variability in the Assessment of Sagittal Alignment of the Cervical Spine

Radiographic evaluation of posterior selective thoracolumbar or lumbar fusion for moderate Lenke 5C curves

Contact Info

Product

Resources

About