Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosis
Abstract Background In previous studies, we demonstrated that the T1 slope (T1s) is associated with clinical outcomes, but the results were not specific for individuals. A recent study suggested that an increased pelvic tilt (PT)/sacral slope (SS) ratio may play an important role in the degeneration...
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| Format: | Article |
| Language: | English |
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BMC
2021-09-01
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| Series: | BMC Musculoskeletal Disorders |
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| Online Access: | https://doi.org/10.1186/s12891-021-04678-8 |
| _version_ | 1818663661290389504 |
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| author | Zhibin Lan Zhiqiang Wu Yuming Huang Weihong Xu |
| author_facet | Zhibin Lan Zhiqiang Wu Yuming Huang Weihong Xu |
| author_sort | Zhibin Lan |
| collection | DOAJ |
| description | Abstract Background In previous studies, we demonstrated that the T1 slope (T1s) is associated with clinical outcomes, but the results were not specific for individuals. A recent study suggested that an increased pelvic tilt (PT)/sacral slope (SS) ratio may play an important role in the degeneration of lumbar scoliosis and pathogenesis of lumbar spondylolisthesis. Therefore, we aimed to explore the role of neck tilt (NT)/T1s in patients with cervical kyphosis. Methods In total, the data of 36 kyphosis patients who underwent anterior cervical hybrid decompression and fusion (ACHDF) for multilevel (3 levels) cervical spondylotic myelopathy were retrospectively analyzed. The radiographic measurements included the T1s, NT, C2–7 Cobb angle, and C2–7 sagittal vertical axis (SVA). The visual analog scale (VAS) and neck disability index (NDI) scores were used to determine the clinical prognosis. Pearson’s correlation coefficient was calculated to assess the relationships among preoperative imaging examination parameters. Results The mean C2–7 Cobb angle was − 5.93 ± 3.00° before surgery, 9.67 ± 6.61° after surgery, and 7.91 ± 8.73° at the follow-up. The preoperative NT/T1s ratio was positively correlated with the ΔC2–7 Cobb angle (r = 0.358, p < 0.05) and negatively correlated with the preoperative C2–7 Cobb angle (r = -0.515, p < 0.01) and preoperative C2–7 SVA (r = -0.461, p < 0.01). The linear regression model indicated a positive correlation between the preoperative NT/T1s ratio and the ΔC2–7 Cobb angle (R2 = 0.122). Conclusions The preoperative NT/T1s ratio may be positively correlated with changes in postoperative cervical spine curvature (Cobb angle). The NT/T1s ratio may be worthy of increased attention among sagittal parameters. |
| first_indexed | 2024-12-17T05:20:23Z |
| format | Article |
| id | doaj.art-39659b1b957f4518aefeda5492a604ae |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-12-17T05:20:23Z |
| publishDate | 2021-09-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-39659b1b957f4518aefeda5492a604ae2022-12-21T22:01:59ZengBMCBMC Musculoskeletal Disorders1471-24742021-09-012211710.1186/s12891-021-04678-8Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosisZhibin Lan0Zhiqiang Wu1Yuming Huang2Weihong Xu3The Spine Surgery Department, Quanzhou Orthopedic-Traumatological Hospital of Fujian Traditional Chinese Medicine UniversityThe Spine Surgery Department, Quanzhou Orthopedic-Traumatological Hospital of Fujian Traditional Chinese Medicine UniversityDepartment of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen UniversityDepartment of Spine Surgery, First Affiliated Hospital of Fujian Medical UniversityAbstract Background In previous studies, we demonstrated that the T1 slope (T1s) is associated with clinical outcomes, but the results were not specific for individuals. A recent study suggested that an increased pelvic tilt (PT)/sacral slope (SS) ratio may play an important role in the degeneration of lumbar scoliosis and pathogenesis of lumbar spondylolisthesis. Therefore, we aimed to explore the role of neck tilt (NT)/T1s in patients with cervical kyphosis. Methods In total, the data of 36 kyphosis patients who underwent anterior cervical hybrid decompression and fusion (ACHDF) for multilevel (3 levels) cervical spondylotic myelopathy were retrospectively analyzed. The radiographic measurements included the T1s, NT, C2–7 Cobb angle, and C2–7 sagittal vertical axis (SVA). The visual analog scale (VAS) and neck disability index (NDI) scores were used to determine the clinical prognosis. Pearson’s correlation coefficient was calculated to assess the relationships among preoperative imaging examination parameters. Results The mean C2–7 Cobb angle was − 5.93 ± 3.00° before surgery, 9.67 ± 6.61° after surgery, and 7.91 ± 8.73° at the follow-up. The preoperative NT/T1s ratio was positively correlated with the ΔC2–7 Cobb angle (r = 0.358, p < 0.05) and negatively correlated with the preoperative C2–7 Cobb angle (r = -0.515, p < 0.01) and preoperative C2–7 SVA (r = -0.461, p < 0.01). The linear regression model indicated a positive correlation between the preoperative NT/T1s ratio and the ΔC2–7 Cobb angle (R2 = 0.122). Conclusions The preoperative NT/T1s ratio may be positively correlated with changes in postoperative cervical spine curvature (Cobb angle). The NT/T1s ratio may be worthy of increased attention among sagittal parameters.https://doi.org/10.1186/s12891-021-04678-8Cervical kyphosisNeck tiltT1 slopeC2–7 lordosisNDI |
| spellingShingle | Zhibin Lan Zhiqiang Wu Yuming Huang Weihong Xu Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosis BMC Musculoskeletal Disorders Cervical kyphosis Neck tilt T1 slope C2–7 lordosis NDI |
| title | Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosis |
| title_full | Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosis |
| title_fullStr | Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosis |
| title_full_unstemmed | Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosis |
| title_short | Increased Neck Tilt/T1 slope ratio may play an important role in patients with cervical kyphosis |
| title_sort | increased neck tilt t1 slope ratio may play an important role in patients with cervical kyphosis |
| topic | Cervical kyphosis Neck tilt T1 slope C2–7 lordosis NDI |
| url | https://doi.org/10.1186/s12891-021-04678-8 |
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