Evidence map›Paper›PMID 35192405›Full record

ArticleGlobal spine journal2023

Measuring Muscle Activity in the Trunk, Pelvis, and Lower Limb Which Are Used to Maintain Standing Posture in Patients With Adult Spinal Deformity, With Focus on Muscles that Contract in the Compensatory Status.

Yu Yamato, Osamu Nojima, Tomohiro Banno, Tomohiko Hasegawa, Go Yoshida, Shin Oe, Hideyuki Arima, Yuki Mihara, Tetsuyuki Nagafusa, Katsuya Yamauchi and 1 more

Open access · goldAbstract read
In one paragraph

Article in Global spine journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

9 citing papers in PubMed, 11 citations in OpenAlex.

  1. Reduced paraspinal muscle endurance and electromyographic fatigability are associated with greater global spinal imbalance in symptomatic lumbar spinal stenosis.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

11 authors at 1 institution in 1 country.

Yu YamatoDepartment of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.ORCID 0000-0002-4701-8211
Osamu NojimaDepartment of Rehabilitation, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Tomohiro BannoDepartment of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.ORCID 0000-0002-6938-7501
Tomohiko HasegawaDepartment of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Go YoshidaDepartment of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Shin OeDepartment of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.ORCID 0000-0002-0794-4026
Hideyuki ArimaDepartment of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Yuki MiharaDepartment of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Tetsuyuki NagafusaDepartment of Rehabilitation, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Katsuya YamauchiDepartment of Rehabilitation, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Yukihiro MatsuyamaDepartment of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Hamamatsu University School of Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designProspective single-center study.

objectiveThis study aimed to investigate the muscle activity of the trunk, pelvis, and lower limb, which are used to maintain a standing posture in elderly patients with spinal deformities. We also elucidated the mechanism of compensation against spinal deformity in terms of muscle activity.

methodsAny patient scheduled to undergo surgery for adult spinal deformity was included. Surface electromyography and radiography were performed preoperatively. The following four representative alignments were defined as compensations: 1. pelvic retroversion, 2. reduction in thoracic kyphosis, 3. hyperextension of the lumbosacral junction, and 4. knee flexion. Individual muscle activity was compared with and without compensation. The patients were stratified into three groups according to the severity of spinal compensation, and differences in muscle activity were compared.

resultsThis study included 76 patients (7 men and 69 women, average age 69.4 years). Our results revealed that pelvic retroversion and knee flexion were compensations that required trunk muscle activity. In contrast, reduction of thoracic kyphosis and hyperextension of the lumbosacral junction did not require much trunk muscle activity. There was a significant difference in the muscle activity of the pelvis and lower limbs according to the severity of the deformity.

conclusionsIn terms of muscle activity, compensation for regional alignment changes in the adjacent spine is economical. However, extra-spinal compensations, such as pelvic retroversion and knee flexion, are non-economical. According to compensation recruitment, the muscle activity of the pelvis and lower limbs increased with the severity of the spinal deformity.

Indexed as

adult spinal deformitycompensatory mechanismsmuscle activityspino-pelvic parametersstanding posturesurface electromyography

Identifiers

PMID35192405
PMCPMC10538328
OpenAlexW4213451320

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.