Immediate correction required to expect a long-term effectiveness of a brace treatment: a biomechanical insight
نویسندگان
چکیده
Methods The three-dimensional geometry of 30 patients was acquired using multi-view radiographic reconstruction and surface topography techniques. A finite element model of the trunk and a parametric brace model were created. For each case, two spinal stiffnesses (flexible, stiff) were tested. Installation of the brace was simulated. Using an experimental design framework including thirteen design factors, 768 braces were tested for each patient (total of 69120 tested braces). Immediate inbrace correction of the coronal Cobb angles and loads acting on the growth plates of the apical vertebrae were computed and analyzed.
منابع مشابه
Effect of a Long-Term Corrective Exercises With Using Brace on Cobb Angle and Postural Control of a Girl With Adolescence Idiopathic Scoliosis
Purpose: Scoliosis is a three-dimensional deformity of the spine in which the resulting imbalance accompanied by the changes in muscle and nervous components can harm the postural control. Various treatments have been suggested so far to correct scoliosis, in which using corrective exercises along with brace are essential to limit the growing curvature, improve spine stability and postural cont...
متن کاملBrace treatment for adolescent idiopathic scoliosis.
Adolescent idiopathic scoliosis (AIS) presents as an abnormal curvature of spine with vertebral rotation. It may impact the patient for their entire life. Approximately 0.25% of adolescents will require treatment. Brace treatment is the most commonly used non-surgical treatment for AIS. Its goal is stop the progression and maintain the curve at an acceptable level through the high risk growth p...
متن کاملCAD/CAM and biomechanical simulations vs. standard technique for the design of braces in adolescent idiopathic scoliosis: first results
Methods So far, 4 AIS patients were recruited. Two braces were built for each patient: 1) a standard TLSO designed using the plaster-cast method (Std Brace), and 2) a brace designed and fabricated using a biomechanical 3D finite element model personalized to the patient’s geometry, and a CAD/CAM software (NewBrace). NewBrace was optimized using a computational brace simulator that allows virtua...
متن کاملRetrospective analysis of immediate in-brace correction of scoliosis attainable in patients with AIS: a SOSORT initiative
Background The effectiveness of bracing in AIS has been debated for years, and there are few studies that can provide a clear picture of how a brace influences curve magnitude, rate of progression, or reduction in surgery. A 2007 review article found no clear advantage to bracing, over observation, in reducing the need for surgery [1]. However, the article highlighted the lack of uniformity in ...
متن کاملShort- vs. Long-Term Effects of Reactive Incidental Focus on Form in Free Discussion EFL Classes
This study investigated the effectiveness of reactive incidental focus on form (FonF) for each learner with regard to different linguistic categories in meaning-oriented EFL classes. To this end, 30 hr of meaningful interactions of upper-intermediate EFL learners were audio-recorded in 2 free discussion classes. Instances of reactive incidental focus-on-form episodes (FFEs), where teachers offe...
متن کامل