Evidence map›Paper›PMID 31954409›Full record

ArticleBMC musculoskeletal disorders2020

Relationship between characteristics of spinopelvic alignment and quality of life in Japanese patients with ankylosing spondylitis: a cross-sectional study.

Tatsuya Sato, Ikuho Yonezawa, Hisashi Inoue, Kurisu Tada, Shigeto Kobayashi, Eri Hayashi, Naoto Tamura, Kazuo Kaneko, Juntendo AS Research Group

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
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  3. CT morphometric analysis of thoracic vertebrae and pelvic parameters: implications for kyphosis and postural balance.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Tatsuya SatoDepartment of Orthopedic surgery, Juntendo University School of Medicine, Tokyo, Japan.
Ikuho YonezawaDepartment of Orthopedic surgery, Juntendo University School of Medicine, Tokyo, Japan. sc04012018@gmail.com.ORCID http://orcid.org/0000-0003-0069-2417
Hisashi InoueDepartment of Orthopedic surgery, Juntendo University School of Medicine, Tokyo, Japan.
Kurisu TadaDepartment of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan.
Shigeto KobayashiDepartment of Internal Medicine (Rheumatology), Juntendo Koshigaya Hospital, Saitama, Japan.
Eri HayashiDepartment of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan.
Naoto TamuraDepartment of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan.
Kazuo KanekoDepartment of Orthopedic surgery, Juntendo University School of Medicine, Tokyo, Japan.
Juntendo AS Research Group
Juntendo University · JPDokkyo Medical University Saitama Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies on characteristic spinal deformities in Japanese patients with ankylosing spondylitis (AS) and data demonstrating a relationship between health-related quality of life (HRQOL) and spinopelvic alignment in these patients are lacking.

methodsIn this cross-sectional study, 50 patients with AS and without a surgical history, vertebral body fracture, or scoliosis as well as 30 control patients with degenerative lumbar kyphoscoliosis (DLKS) were included. Data collected included patient sex, age, spinopelvic parameters on sagittal full-spine standing radiographs, and HRQOL questionnaire responses. Student's t-test was used to compare the characteristics of spinopelvic parameters between the groups. A multiple regression analysis was performed to analyze correlations between spinopelvic parameters and HRQOL in the AS group.

resultsGlobal kyphosis (GK; T1-12 angle) was significantly greater in the AS group than in the DLKS group (P < 0.001), whereas the pelvic tilt (PT; posterior PT angle) was smaller in the AS group (P = 0.006). Radiographic parameters correlated with HRQOL in the AS group. Multiple regression analysis identified the sagittal vertical axis (SVA) and sacral slope (SS) as factors influencing the SRS-22 total score and SVA and GK as factors influencing Japanese Orthopaedic Association Back Pain Evaluation Questionnaire mental health (subdomain).

conclusionsPatients with AS did not use lumbar lordosis or posterior PT to compensate for their large thoracic kyphosis due to spinopelvic ankylosis. These patients showed a unique compensation pattern. The correlation/regression analysis revealed a correlation between radiographic parameters and HRQOL in patients with AS, with particular importance of SVA, SS, and GK for clinical results in AS.

Indexed as

Quality of LifeAdultCross-Sectional StudiesFemaleHumansJapanMaleMiddle AgedPelvic BonesPostural BalanceSpondylitis, AnkylosingAnkylosing spondylitisDegenerative lumbar kyphoscoliosisHealth-related quality of lifeSpinopelvic alignment

Identifiers

PMID31954409
PMCPMC6969975
OpenAlexW3005966030

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.