Evidence map›Paper›PMID 34510262›Full record

ArticlePediatric surgery international2021

Muscle imbalance as a cause of scoliosis: a study in a fetal lamb abdominal wall defect model.

Kohei Kawaguchi, Juma Obayashi, Junki Koike, Kunihide Tanaka, Yasuji Seki, Hideki Nagae, Kei Ohyama, Shigeyuki Furuta, Gianluca Valsenti, Kevin C Pringle and 1 more

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Article in Pediatric surgery international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

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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 3 institutions in 2 countries.

Kohei KawaguchiDepartment of Obstetrics and Gynaecology, University of Otago, Wellington, New Zealand.
Juma ObayashiDivision of Pediatric Surgery, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, 216-8511, Japan.
Junki KoikeDepartment of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan.
Kunihide TanakaDivision of Pediatric Surgery, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, 216-8511, Japan.
Yasuji SekiDivision of Pediatric Surgery, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, 216-8511, Japan.
Hideki NagaeDivision of Pediatric Surgery, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, 216-8511, Japan.
Kei OhyamaDivision of Pediatric Surgery, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, 216-8511, Japan.
Shigeyuki FurutaDivision of Pediatric Surgery, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, 216-8511, Japan.
Gianluca ValsentiDepartment of Radiology, Capital & Coast DHB, Wellington, New Zealand.
Kevin C PringleDepartment of Obstetrics and Gynaecology, University of Otago, Wellington, New Zealand.
Hiroaki KitagawaDivision of Pediatric Surgery, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, 216-8511, Japan. h2kita@marianna-u.ac.jp.
St. Marianna University School of Medicine · JPUniversity of Otago · NZCapital and Coast District Health Board · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe created abdominal wall defects (AWD) in fetal lambs to investigate possible causes of scoliosis.

methodsWe incised the upper abdominal wall (including Rectus) in 60-day gestation fetal lambs, from the midline to either the right (Group A) or left (Group B) costal margin, in 14 lambs carried by 7 ewes. They were delivered by cesarean section at term (about 145 days). Scoliosis was evaluated by anterio-posterior X-rays, determining the Cobb angle.

resultsFour fetuses in Group A and 3 in Group B survived. There were 3 successful AWD lambs Group A and 2 in Group B. One lamb in each group survived with the AWD covered with a thick capsule. The convexity of spinal curve was the direction of scoliosis. Right scoliosis was only seen in the 4 Group A lambs. Left scoliosis was only seen in Group B lambs (2/3, 67%). The mean Cobb angle was 41.7 ± 11.5° in Group A and in Group B the Cobb angles were 59.6

conclusionMuscle imbalance may contribute to the development of scoliosis in a fetal lamb AWD model.

Indexed as

Abdominal WallScoliosisAnimalsCesarean SectionFemaleMusclesPregnancySheepSheep, DomesticAbdominal wall defectCobb angleFetal lambMuscle imbalanceRectus abdominis muscleScoliosis

Identifiers

PMID34510262
OpenAlexW3201060778

What OpenQuestion holds

Textmetadata
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.