Relationship between Intervertebral Disc Compression Force and Sagittal Spinopelvic Lower Limb Alignment in Elderly Women in Standing Position with Patient-Specific Whole Body Musculoskeletal Model

Takanori Miura (), Michio Hongo, Yuji Kasukawa, Hiroaki Kijima, Daisuke Kudo, Kimio Saito, Ryota Kimura, Takehiro Iwami and Naohisa Miyakoshi
Additional contact information
Takanori Miura: Department of Orthopedic Surgery, Tazawako Hospital, Akita 014-1201, Japan
Michio Hongo: Department of Orthopedic Surgery, Graduate School of Medicine, Akita University, Akita 010-8543, Japan
Yuji Kasukawa: Department of Rehabilitation Medicine, Akita University Hospital, Akita 010-8543, Japan
Hiroaki Kijima: Department of Orthopedic Surgery, Graduate School of Medicine, Akita University, Akita 010-8543, Japan
Daisuke Kudo: Department of Rehabilitation Medicine, Akita University Hospital, Akita 010-8543, Japan
Kimio Saito: Department of Rehabilitation Medicine, Akita University Hospital, Akita 010-8543, Japan
Ryota Kimura: Department of Orthopedic Surgery, Graduate School of Medicine, Akita University, Akita 010-8543, Japan
Takehiro Iwami: Department of Mechanical Engineering, Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
Naohisa Miyakoshi: Department of Orthopedic Surgery, Graduate School of Medicine, Akita University, Akita 010-8543, Japan

IJERPH, 2022, vol. 19, issue 24, 1-13

Abstract: The intervertebral disc loading based on compensated standing posture in patients with adult spinal deformity remains unclear. We analyzed the relationship between sagittal alignment and disc compression force ( F m ). In 14 elderly women, the alignment of the sagittal spinopelvic and lower extremities was measured. F m was calculated using the Anybody Modeling System. Patients were divided into low sagittal vertical axis (SVA) and high SVA groups. Comparisons between the two groups were performed and the relationship between the F m and each parameter was examined using Spearman’s correlation coefficient (r). The mean lumbar F m in the high SVA group was 67.6%; significantly higher than that in the low SVA group ( p = 0.046). There was a negative correlation between cervical F m with T1 slope (r = −0.589, p = 0.034) and lumbar F m with lumbar lordosis (r = −0.566, p = 0.035). Lumbar F m was positively correlated with center of gravity-SVA (r = 0.615, p = 0.029), T1 slope (r = 0.613, p = 0.026), and SVA (r = 0.612, p = 0.020). The results suggested sagittal malalignment increased the load on the thoracolumbar and lower lumbar discs and was associated with cervical disc loading.

Keywords: adult spinal deformity; musculoskeletal model; musculoskeletal simulation; sagittal alignment; intervertebral disc; sagittal vertical axis; T1 slope; biomechanics; postural adaptation (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/19/24/16452/pdf (application/pdf)
https://www.mdpi.com/1660-4601/19/24/16452/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:19:y:2022:i:24:p:16452-:d:997040

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().