[A radiographic study of the progression of ossification of the cervical posterior longitudinal ligament: the correlation between the ossification of the posterior longitudinal ligament and that of the anterior longitudinal ligament].
[A radiographic study of the progression of ossification of the cervical posterior longitudinal ligament: the correlation between the ossification of the posterior longitudinal ligament and that of the anterior longitudinal ligament].
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颈椎后纵韧带骨化进展的影像学研究：后纵韧带骨化与前纵韧带骨化的相关性
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
H. Nakamura
中科院分区：
文献类型：
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作者：
H. Nakamura
比较后纵韧带骨化(OPLL)和前纵韧带骨化(OALL)的进展情况。本研究以68例颈椎OPLL患者为研究对象。其中47例行保守治疗，21例行颈椎减压术(其中椎板切除11例，椎管扩大10例)。对68例患者进行了5年以上的随访。大多数连续型和混合型OPLL在最终检查时表现为分期进展，并在随访期内表现出较大的进展。在OPLL进展较快的病例中，OALL的进展倾向于更晚期。在大多数手术病例中，无论骨化类型如何，OPLL在纵轴方向和厚度上都有很高的进展。在这些患者中，也有证据表明OALL在颈椎的每个节段都有进展，在较低的节段进展尤其严重，其发生率高于保守病例。这些结果表明，OPLL和OALL的进展密切相关，因此，OPLL和OALL可能涉及相同的诱发因素。术后骨化明显进展，提示颈椎局部因素在骨化进展中起重要作用。
Progression of ossification of the posterior longitudinal ligament (OPLL) was evaluated in relation to that of ossification of the anterior longitudinal ligament (OALL). The subjects of this study were 68 patients with OPLL in the cervical spine. 47 of them underwent conservative treatment, and the remaining 21 underwent decompression surgery of the cervical spine (involving 11 cases of laminectomy and 10 of an enlargements of the spinal canal). All 68 patients were followed up for more than 5 years. Most of the continuous and most of the mixed types of OPLL exhibited advancement of the stage at the final examination, and showed much progression of OALL during the follow-up period. The progression of OALL tended to be more advanced in those cases in which the progression of OPLL was advanced. In most of the operated cases, OPLL was highly progressed after surgery in both the longitudinal direction and in the thickness, regardless of the ossification type. There was also evidence of progression of OALL in these patients, at each level of the cervical spine, with particularly advanced progression at the lower levels with a higher rate than in the conservative cases. These results indicate that the progressions of OPLL and OALL are closely correlated, and that the same precipitating factors may therefore be involved in both OPLL and OALL. A marked progression of the ossification after surgery suggested that local factors of the cervical spine played an important role in the progression.