A shallow chest correlates with the aortic position in the normal spine: Features resembling those observed in structural scoliosis

Toshio Doi, Yoshihiro Matsumoto, Osamu Tono, Kiyoshi Tarukado, Katsumi Harimaya, Seiji Okada, Kensuke Kubota, Mitsumasa Hayashida, Yukihide Iwamoto

Research output: Contribution to journalArticle

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Abstract

Background: Right thoracic curvature, rib cage deformities and aortic left shift are features of adolescent idiopathic scoliosis that are correlated with each other. We recently reported that disturbance of ribcage development results in progressive thoracic scoliosis in mice. Recently, it has been confirmed that the normal spine exhibits right thoracic curvature and rib cage deformities and that these deformities worsen during the adolescent period. The purpose of this study was to examine whether rib cage deformities correlate with thoracic side curvature in the normal spine, as observed in scoliosis, which is important basic knowledge needed to elucidate the causative factors of adolescent idiopathic scoliosis.Methods: To examine the relationship between rib cage deformities and thoracic side curvature in the normal spine, CT scans of 148 consecutive adult females were examined. The anteroposterior chest dimension, aortic location and rib cage rotation were measured on CT scans obtained at the T8 level. The thoracic side curvature (T5-T12) was also measured on chest radiographs. Results: The anteroposterior chest dimension exhibited a significant correlation with aortic left shift. The aortic location and rib cage rotation were correlated, and the rib cage rotation and thoracic side curvature were correlated. Conclusions: There was a significant correlation between a shallow chest and the aortic position, between the aortic position and the rib cage rotation and between the rib cage rotation and the thoracic side curvature in the normal spine. These findings suggest the possibility that rib cage development is one of the causative factors of adolescent idiopathic scoliosis.

Original languageEnglish
Article number14
JournalScoliosis
Volume9
Issue number1
DOIs
Publication statusPublished - Aug 30 2014

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Scoliosis
Spine
Thorax
Rib Cage

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

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A shallow chest correlates with the aortic position in the normal spine : Features resembling those observed in structural scoliosis. / Doi, Toshio; Matsumoto, Yoshihiro; Tono, Osamu; Tarukado, Kiyoshi; Harimaya, Katsumi; Okada, Seiji; Kubota, Kensuke; Hayashida, Mitsumasa; Iwamoto, Yukihide.

In: Scoliosis, Vol. 9, No. 1, 14, 30.08.2014.

Research output: Contribution to journalArticle

Doi, Toshio ; Matsumoto, Yoshihiro ; Tono, Osamu ; Tarukado, Kiyoshi ; Harimaya, Katsumi ; Okada, Seiji ; Kubota, Kensuke ; Hayashida, Mitsumasa ; Iwamoto, Yukihide. / A shallow chest correlates with the aortic position in the normal spine : Features resembling those observed in structural scoliosis. In: Scoliosis. 2014 ; Vol. 9, No. 1.
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AU - Tarukado, Kiyoshi

AU - Harimaya, Katsumi

AU - Okada, Seiji

AU - Kubota, Kensuke

AU - Hayashida, Mitsumasa

AU - Iwamoto, Yukihide

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