Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis
Abstract Objective To determine the three‐dimensional (3D) changes of the spinal canal length (SCL) after corrective surgeries and their association with the radiographic and clinical outcomes of idiopathic scoliosis patients. The length of the spinal cord has been demonstrated to be strongly correl...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-09-01
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| Series: | JOR Spine |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/jsp2.1151 |
| _version_ | 1819020749931806720 |
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| author | Chaofan Han Yong Hai Chaochao Zhou Peng Yin Runsheng Guo Haiming Wang Wei Wang Thomas Cha Guoan Li |
| author_facet | Chaofan Han Yong Hai Chaochao Zhou Peng Yin Runsheng Guo Haiming Wang Wei Wang Thomas Cha Guoan Li |
| author_sort | Chaofan Han |
| collection | DOAJ |
| description | Abstract Objective To determine the three‐dimensional (3D) changes of the spinal canal length (SCL) after corrective surgeries and their association with the radiographic and clinical outcomes of idiopathic scoliosis patients. The length of the spinal cord has been demonstrated to be strongly correlated with the SCL. Understanding the changes in SCL could help determine the morphologic changes in the spinal cord to prevent spinal cord injury. Methods Twenty‐seven scoliotic patients' 3D spinal canal were investigated using computed tomography images. The SCL between the upper and lower end vertebrae (U/L‐EV) was measured at five locations. The radiographic parameters of each patient and the patient‐reported outcomes (PROs) scores were also collected. The correlations of the changes of the SCLs with the other factors were analyzed. Results The SCL between the U/L‐EV changed non‐uniformly at different locations. The post‐operative SCLs were significantly elongated by 7.5 ± 3.5 mm (6.0 ± 2.5%, P < .001) at the concave side and compressed by −2.6 ± 2.6 mm (−1.9 ± 1.9%, P < .001) at the convex side. The elongations of the SCL at the concave and posterior locations were correlated with the radiographic parameters including the pre‐operative main Cobb angles (r = .511, P = .006; r = .613, P = .001) and apical vertebral translation (AVT) (r = .481, P = .011; r = .684, P = .000). No PRO scores were found to correlate with the SCL changes. Conclusion The corrective surgeries elongated the spinal canal mainly at the concave side and compressed at the convex side. The main thoracic Cobb angle, the changes of AVT, and Cobb angles were moderately associated with the changes of the SCLs, but no PRO score was found to associate with the changes of the SCLs. The data could be instrumental for the improvement of corrective surgeries that are aimed to maximize the correction of scoliosis and minimize the negative effect on the spinal cord to prevent neurological complications. |
| first_indexed | 2024-12-21T03:56:10Z |
| format | Article |
| id | doaj.art-a26ce42bc9f9404b8f3988ed54b17fdf |
| institution | Directory Open Access Journal |
| issn | 2572-1143 |
| language | English |
| last_indexed | 2024-12-21T03:56:10Z |
| publishDate | 2021-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | JOR Spine |
| spelling | doaj.art-a26ce42bc9f9404b8f3988ed54b17fdf2022-12-21T19:16:50ZengWileyJOR Spine2572-11432021-09-0143n/an/a10.1002/jsp2.1151Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosisChaofan Han0Yong Hai1Chaochao Zhou2Peng Yin3Runsheng Guo4Haiming Wang5Wei Wang6Thomas Cha7Guoan Li8Department of Orthopaedic Beijing Chao‐Yang Hospital, Capital Medical University Beijing ChinaDepartment of Orthopaedic Beijing Chao‐Yang Hospital, Capital Medical University Beijing ChinaDepartment of Orthopaedic Surgery, Bioengineering Research Center Newton‐Wellesley Hospital, Harvard Medical School Newton Massachusetts USADepartment of Orthopaedic Beijing Chao‐Yang Hospital, Capital Medical University Beijing ChinaFirst Affiliated Hospital of Nanchang University Nanchang ChinaNanfang Hospital Guangzhou ChinaBeihang University Beijing ChinaOrthopaedic Spine Center Massachusetts General Hospital, Harvard Medical School Boston Massachusetts USADepartment of Orthopaedic Surgery, Bioengineering Research Center Newton‐Wellesley Hospital, Harvard Medical School Newton Massachusetts USAAbstract Objective To determine the three‐dimensional (3D) changes of the spinal canal length (SCL) after corrective surgeries and their association with the radiographic and clinical outcomes of idiopathic scoliosis patients. The length of the spinal cord has been demonstrated to be strongly correlated with the SCL. Understanding the changes in SCL could help determine the morphologic changes in the spinal cord to prevent spinal cord injury. Methods Twenty‐seven scoliotic patients' 3D spinal canal were investigated using computed tomography images. The SCL between the upper and lower end vertebrae (U/L‐EV) was measured at five locations. The radiographic parameters of each patient and the patient‐reported outcomes (PROs) scores were also collected. The correlations of the changes of the SCLs with the other factors were analyzed. Results The SCL between the U/L‐EV changed non‐uniformly at different locations. The post‐operative SCLs were significantly elongated by 7.5 ± 3.5 mm (6.0 ± 2.5%, P < .001) at the concave side and compressed by −2.6 ± 2.6 mm (−1.9 ± 1.9%, P < .001) at the convex side. The elongations of the SCL at the concave and posterior locations were correlated with the radiographic parameters including the pre‐operative main Cobb angles (r = .511, P = .006; r = .613, P = .001) and apical vertebral translation (AVT) (r = .481, P = .011; r = .684, P = .000). No PRO scores were found to correlate with the SCL changes. Conclusion The corrective surgeries elongated the spinal canal mainly at the concave side and compressed at the convex side. The main thoracic Cobb angle, the changes of AVT, and Cobb angles were moderately associated with the changes of the SCLs, but no PRO score was found to associate with the changes of the SCLs. The data could be instrumental for the improvement of corrective surgeries that are aimed to maximize the correction of scoliosis and minimize the negative effect on the spinal cord to prevent neurological complications.https://doi.org/10.1002/jsp2.1151idiopathic scoliosisspinal canalspinal cord injuryspinespine deformitythree‐dimensional reconstruction |
| spellingShingle | Chaofan Han Yong Hai Chaochao Zhou Peng Yin Runsheng Guo Haiming Wang Wei Wang Thomas Cha Guoan Li Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis JOR Spine idiopathic scoliosis spinal canal spinal cord injury spine spine deformity three‐dimensional reconstruction |
| title | Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis |
| title_full | Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis |
| title_fullStr | Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis |
| title_full_unstemmed | Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis |
| title_short | Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis |
| title_sort | investigation of in vivo three dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis |
| topic | idiopathic scoliosis spinal canal spinal cord injury spine spine deformity three‐dimensional reconstruction |
| url | https://doi.org/10.1002/jsp2.1151 |
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