Usefulness of modified S-line for upper instrumented vertebra selection in adolescent idiopathic scoliosis Lenke type 1C curve.

IF 1.6 Q3 CLINICAL NEUROLOGY Spine deformity Pub Date : 2024-11-01 Epub Date: 2024-07-12 DOI:10.1007/s43390-024-00920-0

Hiroki Oba, Shota Ikegami, Masashi Uehara, Terue Hatakenaka, Yoshinari Miyaoka, Daisuke Kurogochi, Takuma Fukuzawa, Tetsuhiko Mimura, Shinji Sasao, Makiyama Fumiaki, Michihiko Koseki, Jun Takahashi

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Abstract

Purpose: Determine the effect of using the modified S-line vertebra (MSLV) as the upper instrumented vertebra (UIV) on postoperative trunk balance, L4 tilt, and clinical outcomes in selective thoracic fusion (STF) for adolescent idiopathic scoliosis (AIS) Lenke type 1C curve.

Methods: Twenty-eight consecutive patients (all female; mean age: 15.4±2.0 years) with AIS Lenke type 1C curve were retrospectively enrolled. Primary outcome measures were coronal balance (absolute distance between C7 and the center of the sacral vertical line), L4 tilt, and Scoliosis Research Society (SRS)-22r scores at 2 years postoperatively. The group with the MSLV at the UIV was designated as the MSLV group (18 patients), and the group with the MSLV proximal (12 patients) or distal (4 patients) to the UIV was defined as the non-MSLV group.

Results: We observed no significant differences between the groups regarding age, LIV and stable vertebra positioning, or preoperative X-ray parameters. Postoperative coronal balance was significantly better in the MSLV group (0.39±0.08 vs. 1.34±0.22 cm; P.

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改良 S 线对青少年特发性脊柱侧凸 Lenke 1C 型曲线上部器械椎体选择的实用性。

目的：确定使用改良S线椎（MSLV）作为上部器械椎（UIV）对青少年特发性脊柱侧弯（AIS）Lenke 1C型曲线选择性胸椎融合术（STF）术后躯干平衡、L4倾斜和临床疗效的影响：回顾性纳入了连续 28 例 AIS Lenke 1C 型脊柱侧弯患者（均为女性；平均年龄：15.4±2.0 岁）。主要结果指标为术后2年的冠状平衡（C7与骶骨垂直线中心的绝对距离）、L4倾斜度和脊柱侧弯研究学会（SRS）-22r评分。MSLV位于UIV的一组被称为MSLV组（18名患者），MSLV位于UIV近端（12名患者）或远端（4名患者）的一组被称为非MSLV组：我们观察到两组患者在年龄、LIV和稳定椎体位置以及术前X光参数方面无明显差异。MSLV组的术后冠状面平衡明显更好（0.39±0.08 cm vs. 1.34±0.22 cm; P.）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Spine deformity

CiteScore

3.20

自引率

18.80%

发文量

167

期刊介绍： Spine Deformity the official journal of the?Scoliosis Research Society is a peer-refereed publication to disseminate knowledge on basic science and clinical research into the?etiology?biomechanics?treatment?methods and outcomes of all types of?spinal deformities. The international members of the Editorial Board provide a worldwide perspective for the journal's area of interest.The?journal?will enhance the mission of the Society which is to foster the optimal care of all patients with?spine?deformities worldwide. Articles published in?Spine Deformity?are Medline indexed in PubMed.? The journal publishes original articles in the form of clinical and basic research. Spine Deformity will only publish studies that have institutional review board (IRB) or similar ethics committee approval for human and animal studies and have strictly observed these guidelines. The minimum follow-up period for follow-up clinical studies is 24 months.