Evidence map›Paper›PMID 34766093›Full record

ArticleJSES international2021

Increased medial laxity of the elbow in preadolescent baseball players with or without medial elbow apophysitis.

Hiroyuki Watanabe, Hiroyoshi Masuma, Tomonori Kenmoku, Hiroshi Kudo, Kazuo Saito, Tomoyuki Nagami, Junya Sekita, Atsuhiko Matsunaga

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in JSES international, 2021. 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
0.3field-weighted citation impact, top 37% 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

4 citing papers in PubMed, 6 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

8 authors at 4 institutions in 1 country.

Hiroyuki WatanabeDepartment of Rehabilitation, School of Allied Health Sciences, Kitasato University, Sagamihara, Kanagawa, Japan.
Hiroyoshi MasumaDepartment of Rehabilitation, Kitasato University Hospital, Sagamihara, Kanagawa, Japan.
Tomonori KenmokuDepartment of Orthopaedic Surgery, School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan.
Hiroshi KudoHome Care Support Office, Machida Hospital, Machida, Tokyo, Japan.
Kazuo SaitoDepartment of Rehabilitation, Tokyo Kasei University, Sayama, Tokyo, Japan.
Tomoyuki NagamiCenter for Human and Social Sciences, Kitasato University College of Liberal Arts and Sciences, Sagamihara, Kanagawa, Japan.
Junya SekitaDepartment of Rehabilitation, Zama General Hospital, Zama, Kanagawa, Japan.
Atsuhiko MatsunagaDepartment of Rehabilitation, School of Allied Health Sciences, Kitasato University, Sagamihara, Kanagawa, Japan.
Kitasato University · JPKitasato University Hospital · JPOida Hospital · JPTokyo Kasei University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMedial elbow apophysitis is a traction apophysitis observed in the medial epicondyle of the elbow in preadolescent baseball players. The purpose of this study was to determine the relationship between medial elbow apophysitis and elbow valgus instability in preadolescent baseball players.

methodsThe participants were classified into a control group and an injury group; the injury group included participants diagnosed with a medial elbow injury (inclusion criteria were only symptoms of the elbow joint or positive findings on physical examinations, or both). Elbow valgus instability was assessed by measuring the differences in ulnohumeral joint gapping width, with and without gravity stress induced by weight loading of the forearm using ultrasonography.

resultsThe control and injury groups consisted of 81 and 23 preadolescent baseball players, respectively. In the throwing elbow, valgus instability in the injury group was significantly greater than that in the control group (1.07 vs. 0.57 mm,

conclusionThe increased elbow valgus instability in the injury group was associated with a medial elbow injury. For the elbow valgus instability of the non-throwing side in the injury group, we considered that players with medial elbow apophysitis inherently have elbow laxity.

Indexed as

ApophysitisBaseballElbow jointJoint instabilityPreadolescentUltrasonography

Identifiers

PMID34766093
PMCPMC8568985
OpenAlexW3201495585

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.