Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
Views
6015
Download
162
from September 2014
 
©Journal of Sports Science and Medicine (2005) 04, 201 - 207

Case report
First Rib Stress Fracture in a Sidearm Baseball Pitcher: A Case Report
Takeshi Sakata1, , Yasunobu Kimura2, Toshiko Hida3
Author Information
1 Department of Orthopedic Surgery and Sports Medicine, Kitade Hospital, Gobo, Wakayama, Japan
2 Department of Sports Studies, Kitade Hospital, Gobo, Wakayama, Japan
3 Department of Rehabilitation Medicine, Kitade Hospital, Gobo, Wakayama, Japan

Takeshi Sakata
‚úČ Department of Orthopedic Surgery and Sports Medicine, Kitade Hospital, 728-4 Takara, Yukawa-cho, Gobo, Wakayama, Japan 644-001.
Email: sakatatakeshi@hotmail.com
Publish Date
Received: 25-01-2005
Accepted: 07-03-2005
Published (online): 01-06-2005
Share this article
 
 
ABSTRACT

Stress fractures of the first rib in athletes are rare. A 14-year-old male, a baseball pitcher who changed from an overhand to a sidearm style, with a stress fracture of the first rib, was reported. Most Stress fractures in the first rib occur at the subclavian groove, between the attachments of the scalenus anterior and scalenus medius muscles, which is the thinnest and weakest portion of the rib. However, in this case the stress fracture occurred at the uncommon region, posterior to the insertion of the scalenus medius muscle, in the first rib. The motion analysis of the pitching in this case demonstrated that the sidearm style induced much more horizontal abduction in the shoulder at the top position than did the overhand style. The findings of electromyography in the serratus anterior muscle, one of the muscles which insert on the first rib, through the pitching motion did not demonstrate any significant differences between the two styles. In this case, the repetition of horizontal over-abduction of the shoulder when sidearm pitching appears to have been the cause of the unusual stress fracture of the first rib at this site.

Key words: Motion analysis, horizontal abduction, electromyography, serratus anterior muscle


           Key Points
  • Most Stress fractures in the first rib occur at the subclavian groove, between the attachments of the scalenus anterior and scalenus medius muscles, which is the thinnest and weakest portion of the rib.
  • We report the case of a young male baseball pitcher with a stress fracture of the first rib located uncommonly at the posterior portion of the rib.
  • In this case, the repetition of horizontal over-abduction of the shoulder when sidearm pitching appears to have been the cause of the unusual stress fracture of the first rib at this site.
 
 
Home Issues About Authors
Contact Current Editorial board Authors instructions
Email alerts In Press Mission For Reviewers
Archive Scope
Supplements Statistics
Most Read Articles
  Most Cited Articles
 
  
 
JSSM | Copyright 2001-2020 | All rights reserved. | LEGAL NOTICES | Publisher

It is forbidden the total or partial reproduction of this web site and the published materials, the treatment of its database, any kind of transition and for any means, either electronic, mechanic or other methods, without the previous written permission of the JSSM.

This work is licensed under a Creative Commons License Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.