Evidence map›Paper›PMID 35473639›Full record

ArticleBMC musculoskeletal disorders2022

Radiographic measurement of the posterior tibial slope in normal Chinese adults: a retrospective cohort study.

Yong Chen, Jianping Ding, Siyu Dai, Jiao Yang, Mengke Wang, Tian Tian, Xiaolong Deng, Boyi Li, Guohua Cheng, Jie Liu

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
9.2field-weighted citation impact, top 1% 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

16 citing papers in PubMed, 43 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

10 authors at 4 institutions in 1 country.

Yong Chen *Department of Radiology, The Affiliated Hospital of Hangzhou Normal University, Wenzhoulu, Gongshu District, Hangzhou City, 310000, Zhejiang Province, China.
Jianping Ding *School of Clinical Medicine, Hangzhou Normal University, Hangzhou, China.
Siyu DaiSchool of Clinical Medicine, Hangzhou Normal University, Hangzhou, China.
Jiao YangDepartment of Radiology, the Second Affiliated Hospital of Xi'an Medical University, Xi'an, China.
Mengke WangThe Second People's Hospital of Chun'an County, Hangzhou, China.
Tian TianSchool of Clinical Medicine, Hangzhou Normal University, Hangzhou, China.
Xiaolong DengSchool of Clinical Medicine, Hangzhou Normal University, Hangzhou, China.
Boyi LiSchool of Clinical Medicine, Hangzhou Normal University, Hangzhou, China.
Guohua ChengHangzhou Jianpei Technology Co., Ltd, Hangzhou, China.
Jie LiuDepartment of Radiology, The Affiliated Hospital of Hangzhou Normal University, Wenzhoulu, Gongshu District, Hangzhou City, 310000, Zhejiang Province, China. 6460576@qq.com.
Hangzhou Normal University · CNAffiliated Hospital of Hangzhou Normal University · CNTaizhou Second People's Hospital · CNXi'an Medical University · CN

Funding

Hangzhou Biomedicine and Health Industry Development Support Special Program 2021WJCY053Zhejiang medical and health technology project 2022KY962
6 · The paper itself

Abstract

backgroundMeasurement of the posterior tibial slope (PTS) angle has important applications in total knee replacement surgery, high tibial osteotomy, and anterior cruciate ligament reconstruction. This study aimed to determine the mean PTS of knee joints in healthy Chinese adults, and provide data to guide knee surgery in China.

methodsA retrospective analysis of 1257 (n = 1233, 50.4% male) plain X-ray films of participants aged 25-59 years was performed. The picture archiving and communication system was used for PTS measurement. The PTS was defined as the angle between the vertical line of the tangent of the anterior tibial cortex of the proximal tibia, and the tangent line of the tibial cortex. Two imaging physicians conducted the PTS measurements independently, and both the inter- and intraclass correlation coefficients (ICCs) were calculated.

resultsThe mean PTS value was 7.68 ± 3.84° (range: 0-21°). The left PTS was significantly smaller in males than in females (7.22 ± 3.89 vs 8.05 ± 3.60; P = 0.005). Additionally, the PTS in participants aged 25-29 years was significantly larger than that in the other age groups (Left side: 8.64 ± 3.73 vs 6.92 ± 3.42, 7.42 ± 3.75, 7.53 ± 3.98; P <  0.001 and Right side: 8.68 ± 3.84 vs 7.48 ± 4.21, 7.13 ± 3.64, 7.66 ± 3.80; P = 0.004). There were no significant differences in PTS between the left and right sides. Two-way analysis of variance suggested that the differences in PTS between age groups were not affected by sex. The interobserver ICC was 0.91 (95% confidence interval [CI]: 0.85-0.94), and the intraobserver ICC was 0.90 (95% CI: 0.82-0.94).

conclusionsThis study demonstrated that there were significant differences in PTS based on sex and age, highlighting the need to provide individualized treatment for knee surgery. It provided valuable information regarding the normal PTS values in Chinese adults and presented regionalised data to guide knee surgery.

Indexed as

Anterior Cruciate Ligament ReconstructionArthroplasty, Replacement, KneeAdultFemaleHumansKnee JointMaleRetrospective StudiesTibiaAnterior cruciate ligamentArthroplastyChineseNormal valuePosterior tibial slope

Identifiers

PMID35473639
PMCPMC9040249
OpenAlexW4224987924

What OpenQuestion holds

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LicenceCC BY
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.