Published online Apr 30, 2008.
https://doi.org/10.4055/jkoa.2008.43.2.266
Thrower's Fracture on the Shaft of the Humerus - 4 Cases Report -
Abstract
A fracture of the shaft of the humerus in young adults is known to occur as a result of high energy injuries such as traffic accidents and falls from a height. In baseball, which is one of the popular sports in the world, the incidence of a fracture of the shaft of the humerus during pitch motion is increasing even in non-professional players. Over the course of a year, we analyzed four cases of humeral shaft fractures that occurred during pitch motion through the pitch count, type of pitch, duration of playing, and prodromal pain. It was found that these fractures can easily occur through the torsion developed by the uncoordinated contraction of the muscle. The mechanism of the fracture should be recognized in order to prevent this type of fracture while playing baseball.
Fig. 1
(A) Initial radiograms show a spiral fracture at the distal one third of the humerus in a twenty-nine-year-old man. (B) The fracture was stabilized with a plate and screws. (C) Radigrams show bony union eleven weeks after surgery.
Table 1
Summary of Cases
References
-
Ashhurt APC. Fractures of the humerus by muscular violence. Univ Penn Med Bull 1905-1906;17:336–339.
-
-
Feltner M, Dapena J. Dynamics of the shoulder and elbow joints of the throwing arm during a baseball pitch. Int J Sport Biomech 1986;2:235–259.
-
-
Ogawa K, Yoshida A. Throwing fracture of the humeral shaft. An analysis of 90 patients. Am J Sports Med 1998;26:242–246.
-
-
Roh KJ, Lee WG, Jung JJ. Fracture of the humerus from throwing hand grenades. 4 cases report. J Korean Orthop Surg 1981;16:668–672.
-