ID 111265
Author
Kanematsu, Yoshiji Tamaki Aozora Hospital
Kashiwaguchi, Shinji Japan Community Health Care Organization
Iwase, Takenobu Tokushima National Hospital
Fukuta, Shoji Kochi Health Science Center
Keywords
shoulder
baseball
epidemiology
Content Type
Journal Article
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).
Journal Title
The Journal of Medical Investigation
ISSN
13496867
13431420
NCID
AA11166929
AA12022913
Publisher
Faculty of Medicine Tokushima University
Volume
62
Issue
3-4
Start Page
123
End Page
125
Sort Key
123
Published Date
2015-08
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
University Hospital
Medical Sciences