Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosis
Abstract A four-dimensional (4D) anatomical spinal reconstruction (ASR) technique and anatomical notch-free, pre-bent rods have been developed for thoracic adolescent idiopathic scoliosis (AIS) surgery. We aimed to evaluate the outcomes of ASR using notch-free rods through multiple comparisons with...
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Nature Portfolio
2025-01-01
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| Online Access: | https://doi.org/10.1038/s41598-024-84578-8 |
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| author | Akira Fukushima Takashi Ohnishi Terufumi Kokabu Yuichiro Abe Hiroyuki Tachi Tsutomu Endo Daisuke Ukeba Norimasa Iwasaki Katsuhisa Yamada Hideki Sudo |
| author_facet | Akira Fukushima Takashi Ohnishi Terufumi Kokabu Yuichiro Abe Hiroyuki Tachi Tsutomu Endo Daisuke Ukeba Norimasa Iwasaki Katsuhisa Yamada Hideki Sudo |
| author_sort | Akira Fukushima |
| collection | DOAJ |
| description | Abstract A four-dimensional (4D) anatomical spinal reconstruction (ASR) technique and anatomical notch-free, pre-bent rods have been developed for thoracic adolescent idiopathic scoliosis (AIS) surgery. We aimed to evaluate the outcomes of ASR using notch-free rods through multiple comparisons with conventional methods, including the simultaneous double-rod rotation technique (SDRRT) and ASR using manually bent notched rods. Three consecutive series of 126 patients who underwent surgery for Lenke 1 AIS curves were prospectively followed up for 2 years after surgery. The operative time was significantly shorter in the ASR using notch-free rods group than in the other two groups (P < 0.05). The correction rate of the main thoracic (MT) curve was higher in the ASR group than in the SDRRT group (P < 0.01). Thoracic kyphosis (TK) was greater in the ASR using notch-free rods group than in the other two groups at the final follow-up (P < 0.01). The percentage of patients with a T6–T8 location of the TK apex was greater in the ASR using notch-free rods group than in the SDRRT group at the final follow-up (P < 0.01). ASR using notch-free rods created an anatomical TK, contributing to a shorter operative time and standardization of the procedure. |
| format | Article |
| id | doaj-art-6304802f0de54d63bc955e0b9e6275f6 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-6304802f0de54d63bc955e0b9e6275f62025-01-05T12:21:22ZengNature PortfolioScientific Reports2045-23222025-01-011511910.1038/s41598-024-84578-8Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosisAkira Fukushima0Takashi Ohnishi1Terufumi Kokabu2Yuichiro Abe3Hiroyuki Tachi4Tsutomu Endo5Daisuke Ukeba6Norimasa Iwasaki7Katsuhisa Yamada8Hideki Sudo9Department of Orthopaedic Surgery, Hokkaido University HospitalDepartment of Orthopaedic Surgery, Hokkaido University HospitalDepartment of Orthopaedic Surgery, Eniwa HospitalDepartment of Orthopaedic Surgery, Eniwa HospitalDepartment of Orthopaedic Surgery, Hokkaido University HospitalDepartment of Orthopaedic Surgery, Hokkaido University HospitalDepartment of Orthopaedic Surgery, Hokkaido University HospitalDepartment of Orthopaedic Surgery, Hokkaido University HospitalDepartment of Orthopaedic Surgery, Hokkaido University HospitalDepartment of Orthopaedic Surgery, Hokkaido University HospitalAbstract A four-dimensional (4D) anatomical spinal reconstruction (ASR) technique and anatomical notch-free, pre-bent rods have been developed for thoracic adolescent idiopathic scoliosis (AIS) surgery. We aimed to evaluate the outcomes of ASR using notch-free rods through multiple comparisons with conventional methods, including the simultaneous double-rod rotation technique (SDRRT) and ASR using manually bent notched rods. Three consecutive series of 126 patients who underwent surgery for Lenke 1 AIS curves were prospectively followed up for 2 years after surgery. The operative time was significantly shorter in the ASR using notch-free rods group than in the other two groups (P < 0.05). The correction rate of the main thoracic (MT) curve was higher in the ASR group than in the SDRRT group (P < 0.01). Thoracic kyphosis (TK) was greater in the ASR using notch-free rods group than in the other two groups at the final follow-up (P < 0.01). The percentage of patients with a T6–T8 location of the TK apex was greater in the ASR using notch-free rods group than in the SDRRT group at the final follow-up (P < 0.01). ASR using notch-free rods created an anatomical TK, contributing to a shorter operative time and standardization of the procedure.https://doi.org/10.1038/s41598-024-84578-8Anatomical spine reconstructionAdolescent idiopathic scoliosisThoracic kyphosis |
| spellingShingle | Akira Fukushima Takashi Ohnishi Terufumi Kokabu Yuichiro Abe Hiroyuki Tachi Tsutomu Endo Daisuke Ukeba Norimasa Iwasaki Katsuhisa Yamada Hideki Sudo Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosis Scientific Reports Anatomical spine reconstruction Adolescent idiopathic scoliosis Thoracic kyphosis |
| title | Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosis |
| title_full | Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosis |
| title_fullStr | Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosis |
| title_full_unstemmed | Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosis |
| title_short | Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosis |
| title_sort | four dimensional anatomical spinal reconstruction using pre bent rods in thoracic adolescent idiopathic scoliosis |
| topic | Anatomical spine reconstruction Adolescent idiopathic scoliosis Thoracic kyphosis |
| url | https://doi.org/10.1038/s41598-024-84578-8 |
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