医学
骨盆倾斜
Oswestry残疾指数
外科
回顾性队列研究
脊柱畸形
畸形
入射(几何)
脊柱融合术
骨盆
固定(群体遗传学)
脊柱侧凸
腰痛
人口
物理
替代医学
环境卫生
病理
光学
作者
Tomohiro Banno,Tomohiko Hasegawa,Yu Yamato,Go Yoshida,Hideyuki Arima,Shin Oe,Yuji Mihara,Koichiro Ide,Yasuhide Watanabe,Kenta Kurosu,Keiichi Nakai,Yukihiro Matsuyama
出处
期刊:Spine
[Ovid Technologies (Wolters Kluwer)]
日期:2021-11-17
卷期号:47 (7): 539-547
被引量:2
标识
DOI:10.1097/brs.0000000000004276
摘要
Retrospective study.To investigate the long-term clinical outcome and incidence of iliac screw-related complications in patients with adult spinal deformity (ASD).Rigid lumbosacral fixation is crucial to achieve optimal global alignment and successful long-term clinical outcomes.The data of eligible patients with ASD who underwent spinopelvic fixation using bilateral iliac screws with at least 5-year follow-up periods were retrospectively analyzed. Iliac screw loosening and rod breakage between the S1 and iliac (S1/IL) screws were defined as distal instability (DI). Demographic data, health-related quality of life scores, and spinopelvic parameters in the DI group were compared with those in the non-DI group. Sub-group analyses were performed between the cases with and without alignment change after rod fracture at S1/IL.Of the 159 patients, the data of 110 patients (15 men, 95 women; mean age, 67.8 yr) were analyzed. The follow-up rate was 69%. Forty-five (41%) patients showed DI (29 cases [26%] in screw loosening, 16 cases [15%] in rod breakage). Eight patients (7.3%) required revision surgery because of iliac screw-related complications. No significant differences were observed in the Oswestry Disability Index and Scoliosis Research Society questionnaire (revised) scores between the DI and non-DI groups. The patients with iliac screw loosening showed significantly greater values of preoperative pelvic incidence, pelvic tilt (PT), and postoperative PT, and T1-pelvic angle. In patients with rod breakage at S1/IL, five patients (31%) who had associated mechanical complications showed an alignment change between pre and post rod breakage. They showed significantly higher and lower rates of high-grade osteotomies and L5/S interbody fusion, respectively.The incidence rate of iliac screw-related complications was relatively high. However, they had a little effect on sagittal alignment deterioration and there were few cases that required revision surgery.Level of Evidence: 4.
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