Conclusion: Idiopathic scoliosis is associated with distinctive intravertebral deformity, with smaller pedicles on the concave side.

• 结论 （1）特发性脊柱侧凸患者胸椎椎弓根内、外横径的最小值均出现在代偿性上胸弯内T4的凹侧，其次是顶椎区椎弓根内、外横径较小，且小于凸侧。