Objectives There is a short period during rapid growth when a scoliosis brace is most effective. In standard practice, the inbrace correction is not measured during brace casting. The first assessment of the in-brace correction in the follow-up clinic may trigger brace adjustment for improved spinal alignment resulting in delay of effective treatment and increased number of radiographs. The obj...

Bracing for juvenile and adolescent idiopathic scoliosis has a long history of use. Effectiveness of conventional rigid bracing is highly variable, likely depending upon the skill of the practitioner, the type of brace selected, and the type of scoliosis being treated. In review of various bracing studies, Dolan and Weinstein found that bracing does not result in superior clinical outcomes comp...

This paper presents the modified design of a bidirectional electrothermal chevron beam microtweezer proposed by J. K. Luo [1]. The original design has been modified to include inward in-plane motion. Thus, the modified design is capable of bidirectional motion. The structures are designed and simulated using COMSOL Multiphysics 4.2a. The bidirectional chevron beam microtweezer shows an in-plane...

We study the de Gennes free energy for smectic A liquid crystals over S2-valued vector fields to understand the chevron (zigzag) pattern formed in the presence of an applied magnetic field. We identify a small dimensionless parameter ε, and investigate the behaviors of the minimizers when the field strength is of order O(ε−1). In this regime, we show via Γ-convergence that a chevron structure w...

The aetiology and form of hallux valgus (HV) is varied with many corrective procedures described. We report a 39-year-old woman, previously treated with a Chevron osteotomy, who presented with recurrent right HV, metatarsus primus varus, and associated bunion. Osteotomies were performed at two levels as a revisional procedure. This report highlights (1) limitations of the Chevron osteotomy and ...

introduction: knee orthosis is used in different cases and can be seen pistoning movement in all orthosis. the purpose of this study was to evaluate the effects of increasing mass knee brace and two kinds of silicon and polyethylene (pe) pad on pistoning movement during walking, on health subject. material and methods: a total of 20 healthy volunteers, including 10 men and 10 women, with an ave...

Method The brace compliance monitoring system was used to monitor how new brace subjects used their braces during first 4 months. Six AIS subjects (5 F, 1 M), between 10 and 13 years old (12.3 + 1.0 years), prescribed TLSO with full time wear (22 hours per day) were monitored starting at the beginning of their brace treatment. The Cobb angles were measured at the initial visit, 4 weeks after th...

BACKGROUND Chêneau and Matthias introduced in 1979 a brace concept inspired in casting. The brace was initially named "CTM" from Chêneau-Toulouse-Münster. The name "CTM" is still popular in France but "Chêneau-type brace" is its common name in the rest of the world. Principles to construct this brace were originally based on anatomical descriptions rather than biomechanics, and its standard is ...

We examined the apparent dissociation of perceived length and perceived position with respect to the Müller-Lyer (M-L) illusion. With the traditional (two-chevron) figure, participants made accurate open-loop pointing responses at the endpoints of the shaft, despite the presence of a strong length illusion. This apparently non-Euclidean outcome replicated that of Mack, Heuer, Villardi, and Cham...