Rib length asymmetry in thoracic adolescent idiopathic scoliosis: is it primary or secondary?
Publication in refereed journal


摘要The development of scoliosis in animal models after inducing asymmetric rib growth suggests the possible role of asymmetric rib growth in the etiopathogenesis of adolescent idiopathic scoliosis (AIS). Asymmetric rib length is well recognized in idiopathic scoliosis; however, whether this rib asymmetry is primary or secondary has not been clearly documented. The objectives of this study were to investigate any rib length asymmetry in patients with AIS and compare those with scoliosis with syringomyelia (SS) with the intention of elucidating any relationship between rib growth and pathogenesis of AIS. Forty-eight AIS and 29 SS with apical vertebrae located between T7 and T9 were recruited. The average age was 13.5 +/- A 2.3 versus 12.5 +/- A 3.4 years, and the average Cobb angle of thoracic curve was 43.3A degrees A A +/- A 16.4A degrees versus 45.6A degrees A A +/- A 22.6A degrees in patients with AIS or SS, respectively. The length of all ribs was measured from the tip of costal head to the end of the same rib by built-in software on spiral computed tomography. At the levels of the apical vertebrae, the vertebrae above and below the apex, the mean discrepancy in rib length (concave minus convex rib) was 7, 4 and 7 mm, respectively, in AIS group (p < 0.01), and 6, 5 and 7 mm in SS group, respectively (p < 0.01). The rib length discrepancy between concave and convex sides was significantly correlated with the magnitude of the Cobb angle of thoracic curve in both AIS and SS groups (p < 0.01). Similar findings of the asymmetry of rib length in both AIS and SS patients pointed strongly to the fact that the rib length asymmetry in apical region is most likely secondary to the scoliosis deformity rather than playing a primary role in the etiopathogenesis.
著者Zhu F, Chu WCW, Sun GQ, Zhu ZZ, Wang WJ, Cheng JCY, Qiu Y
期刊名稱European Spine Journal
詳細描述DOI 10.1007/s00586-010-1637-x
頁次254 - 259
關鍵詞Asymmetry; Idiopathic scoliosis; Rib length
Web of Science 學科類別Clinical Neurology; CLINICAL NEUROLOGY; Neurosciences & Neurology; Orthopedics; ORTHOPEDICS

上次更新時間 2020-25-11 於 00:14