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The American Journal of Sports Medicine 18:632-635 (1990)
© 1990 SAGE Publications

A three-phase analysis of the prevention of recreational softball injuries

David H. Janda, MD

Orthopaedic Surgery Associates, St. Joseph Mercy Hospital, University of Michigan, Ann Arbor, Michigan

Edward M. Wojtys, MD

Section of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan

Fred M. Hankin, MD

Community Orthopedic Surgery, PC, and Huron Valley Hand Surgery, Ypsilanti, Michigan,

Milbry E. Benedict, MA

Department of Recreational Sports, University of Michigan, Ann Arbor, Michigan

Robert N. Hensinger, MD

Section of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan

Recreational sports injuries are expensive to society. Prevention of such injuries must be a major public health goal.

In a previous retrospective study, base sliding was found to be responsible for 71 % of recreational softball injuries. Because most injuries occurred during rapid deceleration against stationary bases, quick-release (break-away) bases were evaluated as a means to modify this mechanism of injury. In a prospective study, 633 softball games were played on break-away base fields and 627 games were played on stationary base fields. Forty-five sliding injuries occurred on the station ary base diamonds (1 injury for every 13.9 games) and only two sliding injuries occurred on the break-away fields (1 injury for every 316.5 games). The medical costs for injuries on the stationary base fields was 79 times greater than that on the break-away fields. In a 1035 game follow-up study performed on all fields equipped with break-away bases, two sliding injuries occurred (1 injury for every 517.5 games).

Installing break-away bases in fields used by recrea tional leagues would achieve a significant reduction of serious softball injuries (98%) and, therefore, should be mandatory.

Based on our findings, the Centers for Disease Con trol has estimated 1.7 million injuries would be pre vented nationally per year, saving $2.0 billion per year nationally in acute medical care costs.




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