Thoracic ligament ossification in patients with cervical ossification of the posterior longitudinal ligaments - Tandem ossification in the cervical and thoracic spine
Thoracic ligament ossification in patients with cervical ossification of the posterior longitudinal ligaments - Tandem ossification in the cervical and thoracic spine
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DOI：
10.1097/brs.0b013e318175c276
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发表时间：
2008-06-01
期刊：
影响因子：
3
通讯作者：
Cho, Yong Eun
中科院分区：
文献类型：
--
作者：
Park, Jeong Yoon;Chin, Dong Kyu;Cho, Yong Eun
研究设计。对因颈椎后纵韧带骨化症（OPLL）接受减压手术的患者进行回顾性调查。 目的。在这项研究中，我们想引入一个新术语来描述两个相邻脊柱区域共存的椎旁韧带骨化现象，称为“串联骨化”。本研究的目的是评估颈椎 OPLL 患者串联骨化的发生率和特征。背景数据摘要。有时，由于相似的发病机制，OPLL和黄韧带骨化（OLF）可能同时存在于颈椎和胸椎。然而，以往关于颈椎后纵韧带骨化患者并发胸椎韧带骨化的报道较少。方法。我们回顾了过去5年在我院接受颈椎OPLL减压手术的患者的颈胸磁共振成像（MRI）和计算机断层扫描（CT）图像。共纳入68例颈椎OPLL患者。所有患者均因颈椎病或脊髓神经根病接受手术减压。然而，我们重点关注其中 23 例 (33.8%) 中发现的胸椎串联骨化； 21 例患有胸部 OLF，5 例患有胸部 OPLL，3 例两者兼有。结果。 23 例胸椎串联骨化患者中有 6 例 (26.1%) 出现脊髓病症状，需要在原颈椎手术后 3.3 个月（1 -7 个月）内进行二次胸椎手术。串联骨化与非串联骨化患者的年龄、性别、颈椎后纵韧带骨化类型、颈椎后纵韧带骨化长度无显着差异。结论。因 OPLL 进行颈椎手术的患者还应同时接受胸椎检查，以寻找串联的 OPLL 和/或 OLF。该系列中串联病变的频率为 68 例中的 23 例，其中 6 例因不断发展的胸部脊髓病缺陷而需要后续手术。
Study Design. A retrospective investigation of patients who underwent decompressive surgery for cervical ossification of the posterior longitudinal ligament (OPLL).Objective. In this study, we would like to introduce a new terminology for the phenomena of coexisting paraspinal ligament ossification in 2 adjacent spinal regions as "tandem ossification." The purpose of this study is to evaluate the incidence and features of tandem ossification in patients with cervical OPLL.Summary of Background Data. Sometimes, OPLL and ossification of the ligamentum flavum (OLF) may coexist in the cervical and thoracic spine on the account of similar pathogenesis. However, there has been only a few previous reports concerning about the incidence of concurrent thoracic ligament ossification in the patients with cervical OPLL.Methods. We reviewed the cervicothoracic magnetic resonance imaging (MRI) and computed tomography (CT) images of patients who underwent decompressive surgery for cervical OPLL in our institute during the last 5 years. Total 68 cases of cervical OPLL patients were included. All patients underwent surgical decompression due to cervical myelopathy or myeloradiculopathy. We focus, however, on the presence of thoracic tandem ossification found in 23 of these cases (33.8%); 21 had thoracic OLF, 5 had thoracic OPLL and 3 had both combined.Results. Six of the 23 patients (26.1%) with thoracic tandem ossification had myelopathic symptoms, and required secondary thoracic surgery within 3.3 months (1 -7 months) of the original cervical procedures. There were no significant differences in age, sex, cervical OPLL type, or length of cervical OPLL between the patients with and without tandem ossification.Conclusion. Patients having cervical surgery for OPLL should also undergo simultaneous studies of the thoracic spine looking for tandem OPLL and/or OLF. The frequency of tandem lesions in this series was 23 of 68, with 6 requiring subsequent surgery for an evolving thoracic myelopathic deficit.