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Abstract：
UNASSIGNED: Magnetic resonance imaging (MRI) is not routinely ordered following spinal fusion. Some literature suggests MRIs are unhelpful due to postoperative changes that obscure interpretation. We aim to describe findings of acute postoperative MRI following anterior cervical discectomy and fusion (ACDF).
UNASSIGNED: The authors retrospectively analyzed adult MRIs completed within 30 days of ACDF (from 2005-2022). T1 and T2 signal intensity in the interbody space dorsal to the graft, mass effect on the dura/spinal cord, intrinsic spinal cord T2 signal, and interpretability were reviewed.
UNASSIGNED: In 38 patients there were 58 ACDF levels (1, 2, and 3 levels; 23, 10, and 5, respectively). MRIs were completed on mean postoperative day 8.37 (range; 0-30 days). T1-weighted imaging was described as isointense, hyperintense, heterogenous, and hypointense in 48 (82.8%), 5 (8.6%), 3 (5.2%), and 2 levels (3.4%), respectively. T2-weighted imaging was described as hyperintense, heterogenous, isointense, and hypointense in 41 (70.7%), 12 (20.7%), 3 (5.2%), and 2 levels (3.4%), respectively. There was no mass effect in 27 levels (46.6%), 14 (24.1%) had thecal sac compression, and 17 (29.3%) had cord compression.
UNASSIGNED: The majority of MRIs exhibited readily compression and intrinsic spinal cord signal even with various types of fusion constructs. Early MRI after lumbar surgery can be difficult to interpret. However, our results support the use of early MRI to investigate neurological complaints following ACDF. Our findings do not support the idea that epidural blood products and mass effect on the cord are seen in most postoperative MRIs after ACDF.
UNASSIGNED: The authors retrospectively analyzed adult MRIs completed within 30 days of ACDF (from 2005-2022). T1 and T2 signal intensity in the interbody space dorsal to the graft, mass effect on the dura/spinal cord, intrinsic spinal cord T2 signal, and interpretability were reviewed.
UNASSIGNED: In 38 patients there were 58 ACDF levels (1, 2, and 3 levels; 23, 10, and 5, respectively). MRIs were completed on mean postoperative day 8.37 (range; 0-30 days). T1-weighted imaging was described as isointense, hyperintense, heterogenous, and hypointense in 48 (82.8%), 5 (8.6%), 3 (5.2%), and 2 levels (3.4%), respectively. T2-weighted imaging was described as hyperintense, heterogenous, isointense, and hypointense in 41 (70.7%), 12 (20.7%), 3 (5.2%), and 2 levels (3.4%), respectively. There was no mass effect in 27 levels (46.6%), 14 (24.1%) had thecal sac compression, and 17 (29.3%) had cord compression.
UNASSIGNED: The majority of MRIs exhibited readily compression and intrinsic spinal cord signal even with various types of fusion constructs. Early MRI after lumbar surgery can be difficult to interpret. However, our results support the use of early MRI to investigate neurological complaints following ACDF. Our findings do not support the idea that epidural blood products and mass effect on the cord are seen in most postoperative MRIs after ACDF.
摘要：
■脊柱融合术后不常规进行磁共振成像（MRI）。一些文献表明，由于术后变化掩盖了解释，MRI无济于事。我们的目的是描述颈椎前路椎间盘切除术和融合术（ACDF）后急性术后MRI的发现。
■作者回顾性分析了在ACDF（2005-2022年）30天内完成的成人MRI。移植物背侧椎间间隙的T1和T2信号强度，对硬脑膜/脊髓的质量影响，内在脊髓T2信号，和可解释性进行了审查。
■在38例患者中，有58个ACDF水平（1、2和3水平；分别为23、10和5）。MRI在术后平均第8.37天（范围；0-30天）完成。T1加权成像被描述为等强度，高强度，异质，48人中为低信号(82.8%)，5（8.6%），3（5.2%），和2个水平(3.4%)，分别。T2加权成像被描述为高强度，异质，等强度,41例(70.7%)为低信号，12（20.7%），3（5.2%），和2个水平(3.4%)，分别。在27个水平（46.6％）中没有质量效应，14例(24.1%)有鞘囊受压，17例（29.3%）有脊髓压迫。
■即使使用各种类型的融合构建体，大多数MRI也表现出容易的压迫和固有的脊髓信号。腰椎手术后的早期MRI可能难以解释。然而,我们的结果支持使用早期MRI调查ACDF后的神经系统疾病.我们的发现不支持以下观点：在ACDF后的大多数术后MRI中都可以看到硬膜外血液制品和对脐带的质量影响。
■作者回顾性分析了在ACDF（2005-2022年）30天内完成的成人MRI。移植物背侧椎间间隙的T1和T2信号强度，对硬脑膜/脊髓的质量影响，内在脊髓T2信号，和可解释性进行了审查。
■在38例患者中，有58个ACDF水平（1、2和3水平；分别为23、10和5）。MRI在术后平均第8.37天（范围；0-30天）完成。T1加权成像被描述为等强度，高强度，异质，48人中为低信号(82.8%)，5（8.6%），3（5.2%），和2个水平(3.4%)，分别。T2加权成像被描述为高强度，异质，等强度,41例(70.7%)为低信号，12（20.7%），3（5.2%），和2个水平(3.4%)，分别。在27个水平（46.6％）中没有质量效应，14例(24.1%)有鞘囊受压，17例（29.3%）有脊髓压迫。
■即使使用各种类型的融合构建体，大多数MRI也表现出容易的压迫和固有的脊髓信号。腰椎手术后的早期MRI可能难以解释。然而,我们的结果支持使用早期MRI调查ACDF后的神经系统疾病.我们的发现不支持以下观点：在ACDF后的大多数术后MRI中都可以看到硬膜外血液制品和对脐带的质量影响。
