Finite element analysis of sacral-alar-iliac screw fixation for sacroiliac joint dislocation

被引：5
|
作者：
Zhang, Wei [1 ,2 ,3 ,4 ]
Cheng, Yucheng [1 ,2 ,3 ,4 ]
Diarra, Mohamed Diaty [1 ,2 ,3 ,4 ]
Chen, Erman [1 ,2 ,3 ,4 ]
Hou, Weiduo [1 ,2 ,3 ,4 ]
Xin, Zengfeng [1 ,2 ,3 ,4 ]
Pan, Zhijun [1 ,2 ,3 ,4 ]
Li, Weixu [1 ,2 ,3 ,4 ,5 ]
机构：
[1] Zhejiang Univ, Affiliated Hosp 2, Sch Med, Dept Orthoped, Hangzhou, Peoples R China
[2] Zhejiang Univ, Res Inst Orthoped, Hangzhou, Peoples R China
[3] Key Lab Motor Syst Dis Res & Precis Therapy Zhejia, Hangzhou, Zhejiang, Peoples R China
[4] Clin Res Ctr Motor Syst Dis Zhejiang Prov, Hangzhou, Zhejiang, Peoples R China
[5] Zhejiang Univ, Affiliated Hosp 2, Sch Med, Dept Orthoped, Hangzhou 310009, Peoples R China
来源：
JOURNAL OF ORTHOPAEDIC RESEARCH | 2023年 / 41卷 / 08期
基金：
中国国家自然科学基金;
关键词：
finite element analysis; sacroiliac screw; sacroiliac joint dislocation; sacrum-alar-iliac screw; ILIOSACRAL SCREWS; FRACTURES; PELVIS; KINDS; SAFE;
D O I：
10.1002/jor.25525
中图分类号：
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];
学科分类号：
摘要：
The percutaneous sacroiliac (SI) screw is a common fixation option for posterior ring disruption in pelvic fractures. However, SI screw placement is difficult and can injure adjacent neurovascular structures. The sacral-alar-iliac screw (SAI) is a safe, reliable free-hand sacral pelvic fixation technique. To investigate the biomechanical stability of SAI for SI joint dislocation, finite element analysis was performed in unstable Tile-Type B and C pelvic ring injuries. The displacement in S1 (fixation of a unilateral S1 segment with one SI screw), TS1 (fixation of the S1 segment with a transsacra 1 screw), TS2 (fixation of the S2 segment with a transsacra 2 screw), S1AI, and S2AI exceeded the normal SI joint mobility. Sufficient stability after SI joint dislocation was obtained with (TS1 + TS2), (TS2 + S1), (S1AI + S2AI + rod), (S1AI + S2AI), and (S1 + S2AI + S1 pedicle) fixation. The TS1 + TS2 group had the smallest displacement and lowest peak screw stress, followed by (S1 + S2AI + S1 pedicle) placement. Our findings suggest that SAI screws are a valuable option for SI joint dislocation.
引用
收藏
页码：1821 / 1830
页数：10
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