徳島大学 教育・研究者情報データベース(EDB)

1. (英) Miyagi Ryou / (日) 宮城 亮

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2. 西良 浩一([徳島大学.大学院医歯薬学研究部.医学域.医科学部門.外科系.運動機能外科学])

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3. 酒井 紀典([徳島大学.病院.中央診療施設等.高度先進整形外科診療部])

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4. (英) Yoshioka H

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5. 安井 夏生

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(英) Two types of laminolysis in adolescent athletes.

(英) Bony defects in the spine are divided into three main types: spondylolysis, pediculolysis, and laminolysis. Lumbar spondylolysis is a well-known stress fracture that occurs frequently in adolescent athletes. Pediculolysis means stress fracture of the pedicle, which sometimes occurs subsequent to unilateral spondylolysis. Laminolysis is a rarely reported stress fracture similar to spondylolysis and pediculolysis that sometimes causes low back pain (LBP). However, its pathomechanism has not been elucidated. Recently, we encountered four adolescent athletes with symptomatic laminolysis. Mean age was 15.8 (range 15-17) years. All subjects reported severe LBP exacerbated by extension of the lumbar spine, and radiology revealed two types of laminolysis: hemilaminar type and intralaminar type. To elucidate the mechanisms of each type, we reviewed a biomechanical study, and found that the hemilaminar type was thought to be subsequent to contralateral spondylolysis, while the intralaminar type might be a result of a stress fracture due to repetitive extension loading.

1. (英) Article.ELocationID: 10.1007/s10195-012-0206-y

2. (英) Article.Affiliation: Department of Radiological Sciences, University of California, Irvine, CA, USA.

3. (英) Article.PublicationTypeList.PublicationType: Journal Article

4. (英) OtherID: PMC3506832