Three-column osteotomy versus Halo-gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis: a retrospective comparative cohort study

Abstract Background Dystrophic neurofibromatosis type I (NF1) kyphoscoliosis presents unique challenges for corrective spinal surgery due to anatomical abnormalities. To compare the radiographic and clinical outcomes of dystrophic neurofibromatosis type 1 (NF1) kyphoscoliosis patients undergoing thr...

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Main Authors: Yuan-Shun Lo, Yu-Tong Dai, Yong Qiu, Erh-Ti Ernest Lin, Hung-Lun Hsieh, Xue-Peng Wei, Chun-Hao Tsai, Yi-Chin Fong, Hsien-Te Chen, Shiau-Tzu Tzeng, Ben-Long Shi
Format: Article
Language:English
Published: BMC 2025-05-01
Series:Journal of Orthopaedic Surgery and Research
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Online Access:https://doi.org/10.1186/s13018-025-05842-9
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author Yuan-Shun Lo
Yu-Tong Dai
Yong Qiu
Erh-Ti Ernest Lin
Hung-Lun Hsieh
Xue-Peng Wei
Chun-Hao Tsai
Yi-Chin Fong
Hsien-Te Chen
Shiau-Tzu Tzeng
Ben-Long Shi
author_facet Yuan-Shun Lo
Yu-Tong Dai
Yong Qiu
Erh-Ti Ernest Lin
Hung-Lun Hsieh
Xue-Peng Wei
Chun-Hao Tsai
Yi-Chin Fong
Hsien-Te Chen
Shiau-Tzu Tzeng
Ben-Long Shi
author_sort Yuan-Shun Lo
collection DOAJ
description Abstract Background Dystrophic neurofibromatosis type I (NF1) kyphoscoliosis presents unique challenges for corrective spinal surgery due to anatomical abnormalities. To compare the radiographic and clinical outcomes of dystrophic neurofibromatosis type 1 (NF1) kyphoscoliosis patients undergoing three-column osteotomy (3CO), halo-gravity traction (HGT), or posterior column osteotomy (PCO) and to evaluate their efficacy and safety in this cohort, different treatment strategies and their associated complication rates warrant further comprehensive investigation. Methods Dystrophic NF1 kyphoscoliosis were divided into 3CO, HGT, and PCO groups based on the surgical strategy. Radiographic parameters were measured preoperatively, postoperatively, and at each follow-up. Intraoperative and postoperative complications were recorded for each patient, and patient-reported outcomes were assessed using the Scoliosis Research Society-22 (SRS-22) questionnaire. Differences among the three groups were analyzed. Results A total of 9 patients were included in the 3CO, 22 in HGT group, 95 in PCO groups, respectively. Significant differences among the three groups were found in terms of operation time (p = 0.011), estimated blood loss (p = 0.003), and number of satellite rod techniques (p = 0.013). At pre-operation, the Cobb angles of main curves were 84.3 ± 24.6° in 3CO group, 99.1 ± 24.3° in HGT group, 60.0 ± 16.8° in PCO group. At post-operation, significant post-operative improvements were found in the Cobb angles of the main curves, apical vertebral translation (AVT), segmental kyphosis (SK), and deformity angular ratio (DAR) in all three groups (p < 0.001). No significant correction loss was observed during the follow-up. Six complications were found in the 3CO group, 13 in the HGT group, and 40 in the PCO group. Conclusions PCO, 3CO, and HGT could be applied to dystrophic NF1 patients. The 3CO is also associated with increased perioperative complications. Level of evidence IV.
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spelling doaj-art-33330d77aac44dd080be91d0f0afd27a2025-08-20T03:53:57ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2025-05-0120111110.1186/s13018-025-05842-9Three-column osteotomy versus Halo-gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis: a retrospective comparative cohort studyYuan-Shun Lo0Yu-Tong Dai1Yong Qiu2Erh-Ti Ernest Lin3Hung-Lun Hsieh4Xue-Peng Wei5Chun-Hao Tsai6Yi-Chin Fong7Hsien-Te Chen8Shiau-Tzu Tzeng9Ben-Long Shi10Division of Spine Surgery, Department of Orthopedic Surgery, China Medical University Beigang Hospital, China Medical UniversityDivision of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing UniversityDivision of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing UniversityDivision of Spine Surgery, Department of Orthopedic Surgery, China Medical University Hospital, China Medical UniversityDivision of Spine Surgery, Department of Orthopedic Surgery, China Medical University Beigang Hospital, China Medical UniversityDepartment of Orthopedic Surgery, Hamamatsu University School of MedicineDivision of Spine Surgery, Department of Orthopedic Surgery, China Medical University Hospital, China Medical UniversityDivision of Spine Surgery, Department of Orthopedic Surgery, China Medical University Beigang Hospital, China Medical UniversityDivision of Spine Surgery, Department of Orthopedic Surgery, China Medical University Hospital, China Medical UniversityDepartment of Orthopedics, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical FoundationDivision of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing UniversityAbstract Background Dystrophic neurofibromatosis type I (NF1) kyphoscoliosis presents unique challenges for corrective spinal surgery due to anatomical abnormalities. To compare the radiographic and clinical outcomes of dystrophic neurofibromatosis type 1 (NF1) kyphoscoliosis patients undergoing three-column osteotomy (3CO), halo-gravity traction (HGT), or posterior column osteotomy (PCO) and to evaluate their efficacy and safety in this cohort, different treatment strategies and their associated complication rates warrant further comprehensive investigation. Methods Dystrophic NF1 kyphoscoliosis were divided into 3CO, HGT, and PCO groups based on the surgical strategy. Radiographic parameters were measured preoperatively, postoperatively, and at each follow-up. Intraoperative and postoperative complications were recorded for each patient, and patient-reported outcomes were assessed using the Scoliosis Research Society-22 (SRS-22) questionnaire. Differences among the three groups were analyzed. Results A total of 9 patients were included in the 3CO, 22 in HGT group, 95 in PCO groups, respectively. Significant differences among the three groups were found in terms of operation time (p = 0.011), estimated blood loss (p = 0.003), and number of satellite rod techniques (p = 0.013). At pre-operation, the Cobb angles of main curves were 84.3 ± 24.6° in 3CO group, 99.1 ± 24.3° in HGT group, 60.0 ± 16.8° in PCO group. At post-operation, significant post-operative improvements were found in the Cobb angles of the main curves, apical vertebral translation (AVT), segmental kyphosis (SK), and deformity angular ratio (DAR) in all three groups (p < 0.001). No significant correction loss was observed during the follow-up. Six complications were found in the 3CO group, 13 in the HGT group, and 40 in the PCO group. Conclusions PCO, 3CO, and HGT could be applied to dystrophic NF1 patients. The 3CO is also associated with increased perioperative complications. Level of evidence IV.https://doi.org/10.1186/s13018-025-05842-9Three-column osteotomyHalo-gravity tractionPosterior column osteotomyNeurofibromatosis type 1Kyphoscoliosis
spellingShingle Yuan-Shun Lo
Yu-Tong Dai
Yong Qiu
Erh-Ti Ernest Lin
Hung-Lun Hsieh
Xue-Peng Wei
Chun-Hao Tsai
Yi-Chin Fong
Hsien-Te Chen
Shiau-Tzu Tzeng
Ben-Long Shi
Three-column osteotomy versus Halo-gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis: a retrospective comparative cohort study
Journal of Orthopaedic Surgery and Research
Three-column osteotomy
Halo-gravity traction
Posterior column osteotomy
Neurofibromatosis type 1
Kyphoscoliosis
title Three-column osteotomy versus Halo-gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis: a retrospective comparative cohort study
title_full Three-column osteotomy versus Halo-gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis: a retrospective comparative cohort study
title_fullStr Three-column osteotomy versus Halo-gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis: a retrospective comparative cohort study
title_full_unstemmed Three-column osteotomy versus Halo-gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis: a retrospective comparative cohort study
title_short Three-column osteotomy versus Halo-gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis: a retrospective comparative cohort study
title_sort three column osteotomy versus halo gravity traction combined with posterior column osteotomy in the treatment of dystrophic neurofibromatosis type 1 kyphoscoliosis a retrospective comparative cohort study
topic Three-column osteotomy
Halo-gravity traction
Posterior column osteotomy
Neurofibromatosis type 1
Kyphoscoliosis
url https://doi.org/10.1186/s13018-025-05842-9
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