Comparing outcomes for single-segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis-an observational study

Abstract Background The surgical procedure of vertebral column decancellation (VCD) has been increasingly performed in orthopaedic surgery for those with spinal deformity. To investigate the results of single-segment VCD performed at different vertebra for correcting thoracolumbar kyphosis in ankylo...

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Main Authors: Zifang Zhang, Tianhao Wang, Chao Xue, Chunyang Meng, Zhijun Xin, Guoquan Zheng
Format: Article
Language:English
Published: BMC 2024-11-01
Series:BMC Musculoskeletal Disorders
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Online Access:https://doi.org/10.1186/s12891-024-07998-7
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author Zifang Zhang
Tianhao Wang
Chao Xue
Chunyang Meng
Zhijun Xin
Guoquan Zheng
author_facet Zifang Zhang
Tianhao Wang
Chao Xue
Chunyang Meng
Zhijun Xin
Guoquan Zheng
author_sort Zifang Zhang
collection DOAJ
description Abstract Background The surgical procedure of vertebral column decancellation (VCD) has been increasingly performed in orthopaedic surgery for those with spinal deformity. To investigate the results of single-segment VCD performed at different vertebra for correcting thoracolumbar kyphosis in ankylosing spondylitis (AS) and to guide the osteotomy strategy. Methods Eighty-six AS patients (77 males, 9 females) having thoracolumbar kyphosis underwent single-segment VCD (ranging from T12 to L3) between January 2016 and September 2019 were enrolled and divided into four groups according to the osteotomy vertebra: T12 in 9 cases (Group A), L1 in 15 cases (Group B), L2 in 47 cases (Group C), and L3 in 15 cases (Group D). Demographics, operational data, radiological and clinical data were compared among the four groups. Results All patients had significant improvements in spinopelvic alignments and health-related quality of life after correction surgeries. Having the similar demographics, patients in the group C obtained the maximum local kyphosis and global kyphosis correction of 45.05° ± 9.07° (P < 0.001) and 43.42° ± 11.24° (P < 0.001) respectively. However, those in the group A had the largest correction in thoracic kyphosis (41.88° ± 9.57°) and chin-brow vertical angle (24.74° ± 6.38°) respectively (P < 0.001). Moreover, the VCD of L2 or L3 would result in much larger correction in lumbar lordosis and sagittal vertical axis than those in the group A and B respectively (P < 0.001), patients in the group A and B suffered from much higher incidence of complications perioperatively although (P = 0.043). Conclusion Single-segment VCD performed among thoracolumbar segments can effectively restore spinopelvic alignments and improve the health related quality of life for AS patients with thoracolumbar kyphosis deformity. Moreover, L2 may be the optimal osteotomy vertebra for those patients. Trial registration Clinical trial number: not applicable. Level of evidence III, therapeutic study.
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spelling doaj-art-9ac18bc10d554a118e0e1a85c8402bef2024-11-17T12:06:00ZengBMCBMC Musculoskeletal Disorders1471-24742024-11-012511910.1186/s12891-024-07998-7Comparing outcomes for single-segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis-an observational studyZifang Zhang0Tianhao Wang1Chao Xue2Chunyang Meng3Zhijun Xin4Guoquan Zheng5Department of Spinal Center, Xinhua Hospital, Shanghai Jiao Tong University School of MedicineDepartment of Orthopaedic Surgery, The First Medical Centre, Chinese PLA General Hospital (301 Hospital)Department of Orthopaedic Surgery, The First Medical Centre, Chinese PLA General Hospital (301 Hospital)Affiliated Hospital of Jining Medical UniversityDepartment of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical UniversityDepartment of Orthopaedic Surgery, The First Medical Centre, Chinese PLA General Hospital (301 Hospital)Abstract Background The surgical procedure of vertebral column decancellation (VCD) has been increasingly performed in orthopaedic surgery for those with spinal deformity. To investigate the results of single-segment VCD performed at different vertebra for correcting thoracolumbar kyphosis in ankylosing spondylitis (AS) and to guide the osteotomy strategy. Methods Eighty-six AS patients (77 males, 9 females) having thoracolumbar kyphosis underwent single-segment VCD (ranging from T12 to L3) between January 2016 and September 2019 were enrolled and divided into four groups according to the osteotomy vertebra: T12 in 9 cases (Group A), L1 in 15 cases (Group B), L2 in 47 cases (Group C), and L3 in 15 cases (Group D). Demographics, operational data, radiological and clinical data were compared among the four groups. Results All patients had significant improvements in spinopelvic alignments and health-related quality of life after correction surgeries. Having the similar demographics, patients in the group C obtained the maximum local kyphosis and global kyphosis correction of 45.05° ± 9.07° (P < 0.001) and 43.42° ± 11.24° (P < 0.001) respectively. However, those in the group A had the largest correction in thoracic kyphosis (41.88° ± 9.57°) and chin-brow vertical angle (24.74° ± 6.38°) respectively (P < 0.001). Moreover, the VCD of L2 or L3 would result in much larger correction in lumbar lordosis and sagittal vertical axis than those in the group A and B respectively (P < 0.001), patients in the group A and B suffered from much higher incidence of complications perioperatively although (P = 0.043). Conclusion Single-segment VCD performed among thoracolumbar segments can effectively restore spinopelvic alignments and improve the health related quality of life for AS patients with thoracolumbar kyphosis deformity. Moreover, L2 may be the optimal osteotomy vertebra for those patients. Trial registration Clinical trial number: not applicable. Level of evidence III, therapeutic study.https://doi.org/10.1186/s12891-024-07998-7Single-segment osteotomyVertebral column decancellationThoracolumbar kyphosisAnkylosing spondylitis
spellingShingle Zifang Zhang
Tianhao Wang
Chao Xue
Chunyang Meng
Zhijun Xin
Guoquan Zheng
Comparing outcomes for single-segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis-an observational study
BMC Musculoskeletal Disorders
Single-segment osteotomy
Vertebral column decancellation
Thoracolumbar kyphosis
Ankylosing spondylitis
title Comparing outcomes for single-segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis-an observational study
title_full Comparing outcomes for single-segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis-an observational study
title_fullStr Comparing outcomes for single-segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis-an observational study
title_full_unstemmed Comparing outcomes for single-segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis-an observational study
title_short Comparing outcomes for single-segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis-an observational study
title_sort comparing outcomes for single segment vertebral column decancellation performed at different vertebras in ankylosing spondylitis an observational study
topic Single-segment osteotomy
Vertebral column decancellation
Thoracolumbar kyphosis
Ankylosing spondylitis
url https://doi.org/10.1186/s12891-024-07998-7
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