Numerical analysis of the effects of padded pelvic belts as a treatment for sacroiliac joint dysfunction.

IF 1 4区医学 Q4 ENGINEERING, BIOMEDICAL

Bio-medical materials and engineering Pub Date : 2023-01-01 DOI:10.3233/BME-221490

Ryota Toyohara, Takahiro Hiramukai, Daisuke Kurosawa, Niels Hammer, Toshiro Ohashi

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引用次数: 0

Abstract

Background: Pain related to the sacroiliac joint (SIJ) accounts for low back pain in 15%-30% of patients. One of the most common treatment options is the use of pelvic belts. Various types of pelvic belts exist; however, the mechanisms underlying treatment and their effectiveness remain unclear to date.

Objective: To analyze stress distribution in the pelvis when a pelvic rubber belt or a padded pelvic belt is applied, to assess the effectiveness of treatment from a numerical biomechanical perspective.

Methods: The pressure distribution at the pelvic belts was measured using a device and subsequently modeled with the finite element method of a pelvis with soft tissues. The stress environment when wearing a pelvic belt in a double-leg stance was simulated.

Results: With the application of pelvic belts, the innominate bone rotated outward, which was termed an out-flare. This caused the SIJ to compress and cause reduction in sacrotuberous, sacrospinous, interosseous, and posterior sacroiliac ligament loading. Padded pelvic belts decreased the SIJ displacement to a greater extent than in pelvic rubber belts.

Conclusion: Pelvic belts aid in compressing the SIJ and reduce its mobility.

Abstract Image

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填充骨盆带治疗骶髂关节功能障碍效果的数值分析。

背景:骶髂关节(SIJ)相关疼痛占腰痛患者的15%-30%。最常见的治疗选择之一是使用骨盆带。存在各种类型的骨盆带;然而，潜在的治疗机制及其有效性至今仍不清楚。目的:从数值生物力学角度分析骨盆橡胶带或填充骨盆带在骨盆内的应力分布，评价其治疗效果。方法:用仪器测量骨盆带处的压力分布，然后用骨盆软组织有限元法建模。模拟了双腿站立时佩戴骨盆带的受力环境。结果:应用骨盆带，无名骨向外旋转，称为外旋。这导致SIJ受压，导致骶结节、骶棘、骨间和骶髂后韧带负荷减少。衬垫骨盆带比橡胶骨盆带更大程度地减少了SIJ位移。结论:骨盆带有助于压迫骶髂关节，降低其活动能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bio-medical materials and engineering 工程技术-材料科学：生物材料

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： The aim of Bio-Medical Materials and Engineering is to promote the welfare of humans and to help them keep healthy. This international journal is an interdisciplinary journal that publishes original research papers, review articles and brief notes on materials and engineering for biological and medical systems. Articles in this peer-reviewed journal cover a wide range of topics, including, but not limited to: Engineering as applied to improving diagnosis, therapy, and prevention of disease and injury, and better substitutes for damaged or disabled human organs; Studies of biomaterial interactions with the human body, bio-compatibility, interfacial and interaction problems; Biomechanical behavior under biological and/or medical conditions; Mechanical and biological properties of membrane biomaterials; Cellular and tissue engineering, physiological, biophysical, biochemical bioengineering aspects; Implant failure fields and degradation of implants. Biomimetics engineering and materials including system analysis as supporter for aged people and as rehabilitation; Bioengineering and materials technology as applied to the decontamination against environmental problems; Biosensors, bioreactors, bioprocess instrumentation and control system; Application to food engineering; Standardization problems on biomaterials and related products; Assessment of reliability and safety of biomedical materials and man-machine systems; and Product liability of biomaterials and related products.