An evaluation of the efficiency of endpoint control on the correction of scoliotic curve with brace : A case study

• Autorzy: Karimi Mohammad , Rabczuk Timon , Luthfi Mauludin , Pourabbas Babak , Esrafilian Amir

Identyfikatory

DOI

10.5277/ABB-01282-2018-05

• Języki publikacji: EN

Abstrakty

EN

The use of braces is one of the conservative treatment approaches recommended for scoliotic subjects. However, the main question posted here is how to improve the efficiency of braces to control the scoliotic curve or to decrease its progression. The aim of this study was to evaluate the efficiency of various boundary conditions (endpoint control) of brace on the correction of scoliotic curves. Method: CT scan images of a scoliotic subject, with double lumbar and thoracic curves, was used to produce 3d model of spine. The correction of spine (decrease in scoliotic curves) was determined following the use of transverse (lateral-to-medial direction) and the combination of transverse and vertical (upward-directed force, traction) forces on spine in Abaqus software. The effects of pelvic fixation (pelvic basket of a brace) on both sides (basket enclosed pelvic in both sides), on one side (basket enclosed the pelvis in only one side), and fixation of lumbar (part of the brace encircled the lumbar area) were evaluated in this study. Results: The results of this study showed that the effect of vertical forces (traction) was more than that of transverse force. Moreover, the combination of vertical and transverse forces on lumbar and thoracic curves correction was more than that of other conditions (only transverse forces). The best correction was achieved with lumbar fixation and with combination of vertical and transverse forces. Conclusions: The use the combination of vertical and transverse forces may be suggested to correct the scoliotic curve. Moreover, the efficiency of lumbar fixation in frontal plane seems to be more than pelvic fixation to correct scoliotic curve. The outputs of this study can be used to design new braces for scoliotic subjects.

Słowa kluczowe

EN

scoliosis; brace; finite element analysis; boundary condition

PL

skolioza; FEM; metoda elementów brzegowych

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2019
• Tom: Vol. 21, no. 2
• Strony: 3--10
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Karimi Mohammad

• Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
• Department of Geotechnical Engineering, Tongji University, Shanghai, China

autor

Rabczuk Timon

• Department of Geotechnical Engineering, Tongji University, Shanghai, China

autor

Luthfi Mauludin

• Department of Geotechnical Engineering, Tongji University, Shanghai, China

autor

Pourabbas Babak

• Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

autor

Esrafilian Amir

• Eastern Finland University, Kuopio, Finland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).