Association Between Sagittal Spinal Alignment and Physical Function in the Japanese General Elderly Population: A Japanese Cohort Survey Randomly Sampled from a Basic Resident Registry.
Journal
The Journal of bone and joint surgery. American volume
ISSN: 1535-1386
Titre abrégé: J Bone Joint Surg Am
Pays: United States
ID NLM: 0014030
Informations de publication
Date de publication:
18 Sep 2019
18 Sep 2019
Historique:
entrez:
1
10
2019
pubmed:
1
10
2019
medline:
18
2
2020
Statut:
ppublish
Résumé
The extension of healthy life expectancy has become increasingly important because of rising health-care costs and decreases in the quality of life in the elderly population. Although reports have surfaced on an association between sagittal spinal alignment and physical performance, such studies on the healthy population are limited. This study investigated the relationship between sagittal spinal alignment and physical function in the general elderly population. Registered citizens who were 50 to 89 years of age were targeted for this survey. We established 8 groups based on age (50 to 59 years, 60 to 69 years, 70 to 79 years, and 80 to 89 years) and sex (male and female) after random sampling from the resident registry of the town of Obuse in 2014. A total of 412 people (203 male and 209 female) were enrolled for the measurement and analysis of radiographic parameters of sagittal spinal alignment and physical performance tests. Physical function score values decreased with age, with moderate to strong correlations. Within age subgroups, worsened spinal alignment in standing whole-spinal radiographs indicated diminished physical performance results. The impact of the sagittal vertical axis was especially prominent; as the sagittal vertical axis was shifted forward by 1 standard deviation, 1-leg standing time became shortened by 3.8 seconds. Two-step scores were significantly associated with sagittal vertical axis, global tilt, cervical sagittal vertical axis, and pelvic tilt. Our investigation of sagittal spinal alignment on physical function in a Japanese elderly cohort revealed significant negative correlations between spinal alignment and physical performance after excluding the influence of age and sex. Posture change in the community-dwelling elderly population is an important sign of physical function impairment. Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Sections du résumé
BACKGROUND
BACKGROUND
The extension of healthy life expectancy has become increasingly important because of rising health-care costs and decreases in the quality of life in the elderly population. Although reports have surfaced on an association between sagittal spinal alignment and physical performance, such studies on the healthy population are limited. This study investigated the relationship between sagittal spinal alignment and physical function in the general elderly population.
METHODS
METHODS
Registered citizens who were 50 to 89 years of age were targeted for this survey. We established 8 groups based on age (50 to 59 years, 60 to 69 years, 70 to 79 years, and 80 to 89 years) and sex (male and female) after random sampling from the resident registry of the town of Obuse in 2014. A total of 412 people (203 male and 209 female) were enrolled for the measurement and analysis of radiographic parameters of sagittal spinal alignment and physical performance tests.
RESULTS
RESULTS
Physical function score values decreased with age, with moderate to strong correlations. Within age subgroups, worsened spinal alignment in standing whole-spinal radiographs indicated diminished physical performance results. The impact of the sagittal vertical axis was especially prominent; as the sagittal vertical axis was shifted forward by 1 standard deviation, 1-leg standing time became shortened by 3.8 seconds. Two-step scores were significantly associated with sagittal vertical axis, global tilt, cervical sagittal vertical axis, and pelvic tilt.
CONCLUSIONS
CONCLUSIONS
Our investigation of sagittal spinal alignment on physical function in a Japanese elderly cohort revealed significant negative correlations between spinal alignment and physical performance after excluding the influence of age and sex. Posture change in the community-dwelling elderly population is an important sign of physical function impairment.
LEVEL OF EVIDENCE
METHODS
Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Identifiants
pubmed: 31567807
doi: 10.2106/JBJS.18.01384
pii: 00004623-201909180-00010
doi:
Types de publication
Journal Article
Observational Study
Langues
eng
Sous-ensembles de citation
IM