(Image by mTaira/Shutterstock)
When we investigated the difference between the left and right sides of lumbar spondylolysis in developing baseball players, dividing them into pitchers and fielders, we found that lumbar spondylolysis occurs more frequently on the side opposite to the pitching side in pitchers. . On the other hand, in fielders, it has been revealed that there is no left-right bias in the location of lumbar spondylolysis on both the pitching and batting sides.
Lumbar spondylolysis is a stress fracture of the lumbar spine, and is one of the most common sports injuries during the developmental period. Once it occurs, it can cause chronic lower back pain, and it is necessary to stop all sports activities during treatment, so prevention and early detection are important. It has been known that in sports such as baseball, where the lower back is twisted only to one side, lumbar spondylolysis is more common on either the left or right side, but it can also occur on the pitching side (right-handed or left-handed) or on the batting side (right-handed or left-handed). The relationship between pitchers and fielders and the differences between pitchers and fielders had not been elucidated.
In this study, we investigated the areas where lumbar spondylolysis occurs in developing baseball players, dividing them into pitchers and fielders. As a result, they found that in pitchers, it occurs more frequently in the body part on the side opposite to the pitching side. On the other hand, in fielders, it has been revealed that there is no left-right bias in the site of onset of separation syndrome on either the pitching or batting sides. When pitching, the hip twists and deflects at the same time. For this reason, the present results indicate that pitchers, compared to fielders, are subject to repeated stress on the lumbar vertebrae on the side opposite to the pitching side.
Our research group has studied the accuracy of imaging tests for correctly diagnosing lumbar spondylolysis, the success rate of treatment using orthoses (rate of bone healing without surgery), and cases where treatment using orthoses is not successful. We have revealed a lot of knowledge, including the factors behind this, the development of new surgical methods, and their results. The current results were achieved by focusing on baseball players among the cases included in these studies.
It is hoped that by disseminating the new knowledge obtained through this research to not only athletes but also the many people who support sports during their developmental stages, such as coaches and parents, it will lead to the prevention of future disabilities. Masu.
PDF information
press release
research representative
General Hospital Mito Kyodo Hospital
Director of Plastic Surgery Masaki Tatsumura
(At the time of research: Associate Professor, Faculty of Medicine, University of Tsukuba/Mito Regional Medical Education Center, University of Tsukuba Hospital)
Faculty of Comprehensive Human Sciences Medical Degree Program
Shotaro Teruya
Published paper
【題名】
Characteristics of Lumbar Spondylolysis in Adolescent Baseball Players: Relationship between the Laterality of Lumbar Spondylolysis and the Throwing or Batting Side.
(Relationship between the side of occurrence of lumbar spondylolysis in developing baseball players and the pitching and hitting sides)[Published magazine]Asian Spine Journal[DOI]10.31616/asj.2023.0360.
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2024-05-14 05:08:15
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