医学
射线照相术
脊柱侧凸
外科
胸椎
固定(群体遗传学)
后凸
畸形
口腔正畸科
腰椎
腰椎
环境卫生
人口
作者
Yossi Smorgick,Michael Millgram,Yoram Anekstein,Yizhar Floman,Yigal Mirovsky
出处
期刊:Journal of Spinal Disorders & Techniques
[Ovid Technologies (Wolters Kluwer)]
日期:2005-12-01
卷期号:18 (6): 522-526
被引量:96
标识
DOI:10.1097/01.bsd.0000154448.90707.a8
摘要
Objectives: To determine the safety of pedicle screw fixation in thoracic spine deformity correction. Methods: One hundred twelve pedicle screws were surgically placed in 25 patients with degenerative, posttraumatic, and Scheuermann kyphosis and idiopathic and neuromuscular scoliosis. Screw position was evaluated using intraoperative and postoperative radiographs and thin-slice computed tomography. Results: Of the total 112 thoracic pedicle screws that were inserted, 98 screws (87.5%) were fully contained within the cortical boundaries of the pedicle. When comparing proximal screws (T1-T8) with distal screws (T9-T12) and convex placed screws with concave ones, a statistically significant difference in screw placement was evident (P < 0.05). More misplaced screws were seen proximally and on the concave side. Of the 14 malpositioned screws, 2 (1.8%) demonstrated aortic abutment. There were no neurologic deficits, vascular injuries, or mechanical failures recorded. Conclusions: Placement of thoracic pedicle screws is both feasible and safe.
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