Epidemiology of shoulder injuries in young baseball players and grading of radiologic findings of Little Leaguer's shoulder
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- Kanematsu Yoshiji
- Department of Orthopaedic Surgery, Tamaki Aozora Hospital
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- Matsuura Tetsuya
- Department of Orthopedics, Tokushima University
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- Kashiwaguchi Shinji
- Department of Orthopaedic Surgery, Japan Community Health Care Organization, Tokyo Shinjuku Medical Center
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- Iwase Takenobu
- Department of Orthopaedic Surgery, Tokushima National Hospital
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- Suzue Naoto
- Department of Orthopedics, Tokushima University
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- Iwame Toshiyuki
- Department of Orthopaedic Surgery, Tokushima Prefectural Central Hospital
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- Fukuta Shoji
- Department of Orthopaedic Surgery, Kochi Health Science Center
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- Hamada Daisuke
- Department of Orthopaedic Surgery, Tamaki Aozora Hospital
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- Goto Tomohiro
- Department of Orthopaedic Surgery, Tamaki Aozora Hospital
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- Sairyo Koichi
- Department of Orthopaedic Surgery, Tamaki Aozora Hospital
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Description
Relatively few epidemiological studies have examined shoulder injuries. This study aimed to investigate the epidemiology of such injuries in young baseball players. A total of 2,055 players aged 9-12 years who participated in a regional championship between 1983 and 1985 were the subjects of this investigation. They were assessed by questionnaire and radiographic examination. Prevalence of shoulder pain was determined according to position, years of baseball playing experience, and training hours per week. Radiographic examination was recommended to all players who complained of shoulder pain. Of the 2,055 subjects, 275 (13.4%) reported episodes of pain in the throwing shoulder. Years of baseball experience, but not player position or training hours per week, was significantly associated with shoulder pain. Forty-one of the 275 subjects reporting shoulder pain agreed to undergo radiography and 15 exhibited findings of Little Leaguer's shoulder. Their lesions could be classified into three distinct grades based on radiographic findings: grade I, widening of the epiphyseal plate in the lateral area (n=9); grade II, widening at all areas of the epiphyseal plate and demineralization of the metaphysis (n=5); and grade III, a slipped epiphysis (n=1). J. Med. Invest. 62: 123-125, August, 2015
Journal
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- The Journal of Medical Investigation
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The Journal of Medical Investigation 62 (3.4), 123-125, 2015
The University of Tokushima Faculty of Medicine
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Details 詳細情報について
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- CRID
- 1390282679220920704
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- NII Article ID
- 130005099158
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- NII Book ID
- AA11166929
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- ISSN
- 13496867
- 13431420
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- PubMed
- 26399334
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed