Results of ultrasound-assisted brace casting for adolescent idiopathic scoliosis

Lou, Edmond; Hill, Doug; Donauer, Andreas; Tilburn, Melissa; Hedden, Douglas; Moreau, Marc

doi:10.1186/s13013-017-0130-2

Cited by 8 publications

(7 citation statements)

References 33 publications

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“…This provided quantitative applied pressures and real-time simulated in-brace correction for the orthotist to assess the brace design. Literature had shown that fewer brace adjustments clinic visits were required with ultrasound assisted brace casting ( 16 , 17 ).…”

Section: Discussionmentioning

confidence: 99%

“…This process took <1 min. This US assisted method had been demonstrated to provide a radiation-free method to determine the optimum pressure level and location to assist brace design, resulting in decreased radiation exposure during follow-up brace evaluation, increased the in-brace correction, reduced the patients' visits to both brace adjustment and scoliosis clinics ( 16 , 17 ). The orthotist then decided if altering bolster locations and orientations and pressure levels might improve correction.…”

Section: Methodsmentioning

confidence: 99%

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Immediate Outcomes and Benefits of 3D Printed Braces for the Treatment of Adolescent Idiopathic Scoliosis

Lou

Hill

2022

Front. Rehabilit. Sci.

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Spinal bracing is a proven effective treatment for children with adolescent idiopathic scoliosis (AIS). Four factors have been reported to affect brace treatment outcome including (1) growth or curve-based risk, (2) the in-brace correction, (3) the brace wear quantity, and (4) the brace wear quality. The in-brace correction is impacted by spinal flexibility. The quality of brace design also affects the in-brace correction and comfort which indirectly affects the brace wear quantity and quality. A traditional polypropylene spinal brace is bulky and uncomfortable, and its manufacturing process is labor intensive. As 3D printing technology becomes more common and advanced, there is a potential to manufacture spinal braces using 3D printing technology. The objectives of this paper were to report the immediate effectiveness and benefits in using 3D printed brace to treat children with AIS. Six children with AIS (5F, 1M; 12.9 ± 1.4 years old; Cobb angle: 26° ± 7°), who were new to brace treatment, were recruited. Spinal flexibility and pressure pad locations were acquired using ultrasound assisted method to ensure braces were designed properly. To manufacture the braces, all participants were scanned by a handheld 3D scanner to obtain their body shapes. The 3D braces were then printed with Nylon 12 material. The average in-brace Cobb angle correction was 10 ± 4° (41 ± 18% correction). The 3D brace was 33% thinner, 26% lighter, 37% lower cost and required 3.7 h less labor time to manufacture when compared with the standard polypropylene brace. As a conclusion, the 3D printed brace had good immediate treatment effectiveness, but the long-time effect is still required time to explore.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Immediate Outcomes and Benefits of 3D Printed Braces for the Treatment of Adolescent Idiopathic Scoliosis

Lou

Hill

2022

Front. Rehabilit. Sci.

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“…However, to prevent too much radiation exposure, the more in-brace correction X-ray was not recommended. A study by Lou et al [26] suggested utilizing ultrasound in assisting brace casting and in-brace correction monitoring while reducing radiation exposure.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of In-brace Correction in Individuals with Adolescent Idiopathic Scoliosis: A Retrospective and Descriptive Study

Putra

Limskul

Yotnuengnit

et al. 2022

Open Access Maced J Med Sci

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Introductions: Achieving maximum correction at the beginning of brace treatment in AIS is the only factor that can be controlled by the bracing provider if we have a better understanding of the prognostics and factors associated with achieving in-brace correction. The aim of this present study was to evaluate in-brace correction in a cohort of AIS patients who were treated by full-time bracing with plastic moulded thoraco-lumbo-sacral spinal orthosis (TLSO). Methods: This study was a retrospective descriptive study. We collected data from medical records of individuals with AIS who receiving full-time braces treatment from Orthotic Clinic, King Chulalongkorn Memorial Hospital. Demographic data included age, gender, weight, height, and body mass index (BMI). Cobb angle, Risser sign, and curve type were determined using pre and post-brace standing posteroanterior (PA) radiographs. Correlation analysis was performed to investigate in-brace correction with associated factors. Results: We included 91 patients' data and radiographic images with AIS, with seven (7.69%) boys and 84 (92.31%). The overall mean Cobb angle was 32.9 ± 8.5º, and during brace treatment, it was 22.5 ± 11.5º. There was a significant mean difference in the mean Cobb angle before and in-brace (p < 0.001). The overall mean in-brace correction in the study was 34.1 ± 22.7%. Initial Cobb angle and BMI were found to be significantly negatively associated with in-brace correction with a Pearson coefficient of -0.49 and -0.24, respectively. Conclusion: The mean of first in-brace correction TLSO was 34.1% from the initial Cobb angle. No difference in in-brace correction across curve types in our study. There was a significant Cobb angle changed before and in-brace radiograph. We found that in-brace correction was significantly associated with initial Cobb angle and BMI. Keywords: Adolescent Idiopathic Scoliosis, in-brace correction, bracing

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“…A pneumatic bracing simulation system (Figure 1) was developed to simulate the classic three-point corrective forces system of CB referring to the Providence brace system 14 and Fixation, Elongation, Derotation system. 17 In a cuboid frame, a pair of underarm pallets and pelvic baffles were designed to fix both arms and the pelvis.…”

Section: Methodsmentioning

confidence: 99%

“…Subsequent research further affirmed the role of ultrasound evaluation in optimizing the magnitude and position of the corrective forces in brace fabrication. 14 Although these studies proved the function of ultrasound in optimizing brace design, generally applicable schemes of pressure positions for AIS have not been reported.…”

Section: Introductionmentioning

confidence: 97%

Optimized scheme for paired transverse corrective forces in S-shaped scoliosis via ultrasound and application in Chêneau brace: a pilot study

Wang

Xia

Wang

et al. 2021

Prosthetics &Amp; Orthotics International

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Background:There is currently no consensus on the optimal positions of the transverse corrective forces (TCFs) for scoliosis braces.Objectives:This study aimed to explore an optimal scheme of placing paired TCF for S-shaped adolescent idiopathic scoliosis and its feasibility in Chêneau brace (CB) treatment.Study design:Cross-over feasibility pilot trial.Methods:Ten S-shaped adolescent idiopathic scoliosis participants were invited to receive four tests with different paired TCF positions under ultrasound. The positions of the paired TCF were test 1: thoracic apical vertebra (AV), lumbar AV; test 2: 2 cm inferior to thoracic AV, lumbar AV; test 3: thoracic AV, 2 cm superior to lumbar AV; and test 4: 2 cm inferior to thoracic AV, 2 cm superior to lumbar AV. The test scheme with the highest mean in-force correction rate (IFCR) for the thoracic spinous process angle (SPA) was further applied in the CB fabrication of 4 additional participants.Results:A significant higher mean IFCR of the thoracic SPA of 63.6% was found in test 2 (P < 0.001), which also contributed to its higher overall IFCR of the SPA of 64.6% (P = 0.001). Moreover, the mean in-brace correction rates for the thoracic and overall curves in CB were 46.4% and 51.8%, respectively. No adverse events were reported.Conclusions:Placing paired TCF at the lumbar AV and 2 cm inferior to the thoracic AV achieved better treatment efficacy than other schemes. The practical application of this scheme on the CB was feasible.

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Results of ultrasound-assisted brace casting for adolescent idiopathic scoliosis

Cited by 8 publications

References 33 publications

Immediate Outcomes and Benefits of 3D Printed Braces for the Treatment of Adolescent Idiopathic Scoliosis

Immediate Outcomes and Benefits of 3D Printed Braces for the Treatment of Adolescent Idiopathic Scoliosis

Evaluation of In-brace Correction in Individuals with Adolescent Idiopathic Scoliosis: A Retrospective and Descriptive Study

Optimized scheme for paired transverse corrective forces in S-shaped scoliosis via ultrasound and application in Chêneau brace: a pilot study

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