Range of motion of thoracic spine in sagittal plane
Range of motion of thoracic spine in sagittal plane
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DOI：
10.1007/s00586-013-3088-7
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发表时间：
2014-03-01
影响因子：
2.8
通讯作者：
Kato, Fumihiko
中科院分区：
文献类型：
--
作者：
Morita, Daigo;Yukawa, Yasutsugu;Kato, Fumihiko
胸椎的影像学研究：本研究的目的是研究胸椎各节段的动态对线和活动范围（ROM）。由于胸腔的限制，胸椎被认为具有受限的ROM。然而，胸椎的角度运动在某些患者中可诱发胸椎压迫性脊髓病。尽管之前很少有研究报告矢状面的节段性ROM，但这些研究都是基于尸体标本。本研究前瞻性纳入了50例颈椎或腰椎疾病但既无胸椎疾病也无压缩性骨折的患者（34例男性，16例女性;平均年龄55.4 ± 14.7岁;范围27-81岁）。术前脊髓造影后，在被动最大屈曲和伸展位进行多排计算机断层扫描。测量胸椎后凸角（T1/L1），屈曲位40.2A °，A +/-A11.4A °，伸展位8.5A °，A +/-A12.8A °（P < 0.0001）。后凸角的顶点位于屈曲时的T6/7处。总ROM（T1/L1）为31.7A度A A +/- A 11.3A度。节段性ROM从T12到T4/5逐渐减小，但从T4/5到T12/L1逐渐增加。最大活动度在T12/L1（4.2A度A A +/- A 2.1A度），最小活动度在T4/5（0.9A度A A +/- A 3.0A度）。胸椎在矢状面显示活动度，尽管被认为是一个稳定区域。这些结果为胸椎疾病的诊断和手术方式的选择提供了有用的信息。
Imaging study of thoracic spine.The purpose of this study was to investigate dynamic alignment and range of motion (ROM) at all segmental levels of thoracic spine.Thoracic spine is considered to have restricted ROM because of restriction by the rib cage. However, angular movements of thoracic spine can induce thoracic compressive myelopathy in some patients. Although few previous studies have reported segmental ROM with regard to sagittal plane, these were based on cadaver specimens. No study has reported normal functional ROM of thoracic spine.Fifty patients with cervical or lumbar spinal disease but neither thoracic spinal disease nor compression fracture were enrolled prospectively in this study (34 males, 16 females; mean age 55.4 +/- A 14.7 years; range 27-81 years). After preoperative myelography, multidetector-row computed tomography scanning was performed at passive maximum flexion and extension position. Total and segmental thoracic kyphotic angles were measured and ROM calculated.Total kyphotic angle (T1/L1) was 40.2A degrees A A +/- A 11.4A degrees and 8.5A degrees A A +/- A 12.8A degrees in flexion and extension, respectively (P < 0.0001). The apex of the kyphotic angle was at T6/7 in flexion. Total ROM (T1/L1) was 31.7A degrees A A +/- A 11.3A degrees. Segmental ROM decreased from T1/2 to T4/5 but increased gradually from T4/5 to T12/L1. Maximum ROM was at T12/L1 (4.2A degrees A A +/- A 2.1A degrees) and minimum at T4/5 (0.9A degrees A A +/- A 3.0A degrees).Thoracic spine showed ROM in sagittal plane, despite being considered a stable region. These findings offer useful information in the diagnosis and selection of surgical intervention in thoracic spinal disease.