Fukushima Akira, Ohnishi Takashi, Kokabu Terufumi, Abe Yuichiro, Tachi Hiroyuki, Endo Tsutomu, Ukeba Daisuke, Iwasaki Norimasa, Yamada Katsuhisa, Sudo Hideki
Department of Orthopaedic Surgery, Hokkaido University Hospital, N15W7, Sapporo, Hokkaido, 060-8638, Japan.
Department of Orthopaedic Surgery, Hokkaido Orthopaedic Memorial Hospital, Hiragishi 7-13-5, Sapporo, Hokkaido, 062-0937, Japan.
Sci Rep. 2025 Jan 2;15(1):378. doi: 10.1038/s41598-024-84578-8.
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.
一种用于青少年特发性脊柱侧凸（AIS）手术的四维（4D）解剖学脊柱重建（ASR）技术以及无切口、预弯棒已被研发出来。我们旨在通过与传统方法（包括同步双棒旋转技术（SDRRT）以及使用手动弯曲带切口棒的ASR）进行多次比较，来评估使用无切口棒的ASR的效果。对连续三组共126例行Lenke 1型AIS曲线手术的患者术后进行了为期2年的前瞻性随访。使用无切口棒的ASR组的手术时间明显短于其他两组（P < 0.05）。ASR组主胸弯（MT）的矫正率高于SDRRT组（P < 0.01）。在末次随访时，使用无切口棒的ASR组的胸椎后凸（TK）大于其他两组（P < 0.01）。在末次随访时，使用无切口棒的ASR组TK顶点位于T6 - T8的患者百分比高于SDRRT组（P < 0.01）。使用无切口棒的ASR可形成解剖学上的TK，有助于缩短手术时间并使手术过程标准化。
