Evidence map›Paper›PMID 34988620›Full record

ArticleInternational orthopaedics2022

What happens to the gluteus medius in young and middle-aged patients with hip dysplasia?

Lixin Chen, Yunlong Wu, Zhenqiu Chen, Chi Zhou, Yinuo Fan, Zhongfeng Li, Minghai Chen, Jiahao Zhang, Yupeng Liang, Zhiming Wei

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Article in International orthopaedics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 29% 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

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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

4 citing papers in PubMed, 4 citations in OpenAlex.

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4 · The record

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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

10 authors at 2 institutions in 1 country.

Lixin ChenGuangdong Province, Huizhou Herbalist Doctor Hospital, Guangzhou University of Chinese Medicine, Huizhou, 516000, China.
Yunlong WuThe First Clinical Medical College, Guangdong Province, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou, 510405, China.
Zhenqiu ChenThe Department of Orthopedics, Guangdong Province, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China. chenzq2019@126.com.
Chi ZhouThe Department of Orthopedics, Guangdong Province, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
Yinuo FanThe First Clinical Medical College, Guangdong Province, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou, 510405, China.
Zhongfeng LiThe First Clinical Medical College, Guangdong Province, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou, 510405, China.
Minghai ChenThe First Clinical Medical College, Guangdong Province, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou, 510405, China.
Jiahao ZhangThe First Clinical Medical College, Guangdong Province, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou, 510405, China.
Yupeng LiangThe First Clinical Medical College, Guangdong Province, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou, 510405, China.
Zhiming WeiThe First Clinical Medical College, Guangdong Province, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou, 510405, China.
Guangzhou University of Chinese Medicine · CNFirst Affiliated Hospital of Guangzhou University of Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMuch research has focused on quantifying the bony characteristics of patients with developmental dysplasia of the hip (DDH). Far less attention, however, has been paid to muscle abnormalities around the hip such as those in the gluteus medius (GM).

methodsWe retrospectively examined clinical and imaging data, such as the age of onset and computed tomography (CT) findings, in 108 consecutive hips. Subjects for the control group were selected from our radiology database. Two readers independently evaluated the length (LGM), cross-sectional area (CSA), width (WGM), and thickness (TGM) of the GM and arm of GM (AGM) and angle of the GM activation (AOA) and bony parameters including the acetabulum-head index (AHI), lateral central edge angle (LCEA), acetabular index (AI), femoral offset (FO), and height of the rotation centre of femoral head (HCFH) among all cases using the imaging data.

resultsThe patient group included 108 hips. The AGM, LGM, CSA, and TGM were lower in the DDH patients, while AOA was higher. However, there was no significant difference in the WGM between the two groups. Multiple linear regression analysis showed that AGM and AOA were independent factors affecting LCEA. The following regression equation was used: Y(LCEA) = 5.377 * X1 (AGM) - 0.310 * X2 (AOA) - 11.331. The mechanical characteristics of the GM and many bony parameters were significantly correlated (the AGM and AHI, LCEA, AI, FO, but not HCFH; AOA and AHI, LCEA, AI, but not FO or HCFH). The CSA was positively correlated with only HCFH. The rest were not statistical significance linear correlation. The multivariate regression results showed that the age of onset was positively correlated with AGM (r = 0.467). The regression equation used was Y = 9.0 * X (age of onset) - 11.4.

conclusionWe found difference in the morphological and mechanical characteristics of the GM between hips with DDH and hips of normal morphology. Of note, the mechanical characteristics of the GM were influenced by bony parameters in patients with DDH.

Indexed as

Hip DislocationHip Dislocation, CongenitalAcetabulumHip JointHumansMiddle AgedOsteotomyRetrospective StudiesComputed tomographyDevelopmental dysplasia of the hipGluteus medius

Identifiers

PMID34988620
OpenAlexW4206761328

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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.