| Title: | Influence of Lateral Translation of Lowest Instrumented Vertebra on L4 Tilt and Coronal Balance for Thoracolumbar and Lumbar Curves in Adolescent Idiopathic Scoliosis |
| Authors: | Yamada, Katsuhisa Browse this author |
| Sudo, Hideki Browse this author →KAKEN DB |
| Abe, Yuichiro Browse this author |
| Kokabu, Terufumi Browse this author |
| Tachi, Hiroyuki Browse this author |
| Endo, Tsutomu Browse this author |
| Ohnishi, Takashi Browse this author |
| Ukeba, Daisuke Browse this author |
| Ura, Katsuro Browse this author |
| Takahata, Masahiko Browse this author |
| Iwasaki, Norimasa Browse this author →KAKEN DB |
| Keywords: | adolescent idiopathic scoliosis |
| thoracolumbar |
| lumbar curve |
| lowest instrumented vertebra |
| LIV translation |
| anterior spinal fusion |
| posterior spinal fusion |
| Issue Date: | 9-Feb-2023 |
| Publisher: | MDPI |
| Journal Title: | Journal of clinical medicine |
| Volume: | 12 |
| Issue: | 4 |
| Start Page: | 1389 |
| Publisher DOI: | 10.3390/jcm12041389 |
| Abstract: | This study aimed to evaluate the lowest instrumented vertebra translation (LIV-T) in the surgical treatment of thoracolumbar/lumbar adolescent idiopathic scoliosis and to analyze the radiographic parameters in relation to LIV-T and L4 tilt and global coronal balance. A total of 62 patients underwent posterior spinal fusion (PSF, n = 32) or anterior spinal fusion (ASF, n = 30) and were followed up for a minimum of 2 years. The mean preoperative LIV-T was significantly larger in the ASF group than the PSF (p < 0.01), while the final LIV-T was equivalent. LIV-T at the final follow-up was significantly correlated with L4 tilt and the global coronal balance (r = 0.69, p < 0.01, r = 0.38, p < 0.01, respectively). Receiver-operating characteristic analysis for good outcomes, with L4 tilt <8 degrees and coronal balance <15 mm at the final follow-up, calculated the cutoff value of the final LIV-T as 12 mm. The cutoff value of preoperative LIV-T that would result in the LIV-T of <= 12 mm at the final follow-up was 32 mm in PSF, although no significant cutoff value was calculated in ASF. ASF can centralize the LIV better than PSF with a shorter segment fusion, and could be useful in obtaining a good curve correction and global balance without fixation to L4 in cases with large preoperative LIV-T. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/88911 |
| Appears in Collections: | 医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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