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Toyohara, R; Hiramukai, T; Kurosawa, D; Hammer, N; Ohashi, T.
Numerical analysis of the effects of padded pelvic belts as a treatment for sacroiliac joint dysfunction.
Biomed Mater Eng. 2023; 34(4): 305-318. Doi: 10.3233/BME-221490 [OPEN ACCESS]
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Co-authors Med Uni Graz: Hammer Niels
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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.
Find related publications in this database (using NLM MeSH Indexing): Humans - administration & dosage; Sacroiliac Joint - administration & dosage; Rubber - administration & dosage; Pelvis - administration & dosage; Pelvic Bones - administration & dosage; Biomechanical Phenomena - administration & dosage
Find related publications in this database (Keywords): Finite element analysis; low back pain; numerical analysis; pelvic belt; sacroiliac joint dysfunction