Epstein Nancy E
Department of Neuroscience, Winthrop University Hospital, Mineola, NY 11501, USA.
Surg Neurol Int. 2015 Aug 31;6(Suppl 14):S379-82. doi: 10.4103/2152-7806.163957. eCollection 2015.
This is a commentary on the article laminoplasty versus laminectomy and fusion (LF) for multilevel cervical myelopathy: A meta-analysis of clinical and radiological outcomes by Chang-Hyun Lee et al. Here, the authors utilized seven studies to compare the efficacy of cervical expansive laminoplasty (EL) versus laminectomy and fusion (LF) to address three or more level multilevel cervical spondylotic myelopathy (CSM). Both procedures led to similar degrees of neurological recovery and short-term loss of lordosis, but found that LF led to more favorable long-term results.
For patients with three or more level CSM, laminectomy followed by an instrumented fusion (LF) has major advantages; open bilateral decompression of the nerve roots, while minimizing the risk of inadvertent injury to the cord, and the fusion's maintenance of lordosis.
Some would argue that inadvertent cord/root injury is greater utilizing any of the EL techniques; e.g., unilateral, bilateral, or spinous process splitting techniques. In short, why risk cord/root injury by manipulating the compressive posterior/posterolateral elements, which are already threatening neural function.
Although the results of EL versus LF appeared comparable in the short-term in these seven articles, LF resulted in better long-term outcomes. Some would also argue that LF, utilizing an open approach offers safer bilateral neural exposure and decompression.
本文是对Chang - Hyun Lee等人所著文章《多节段颈椎脊髓病的椎板成形术与椎板切除术及融合术(LF):临床和影像学结果的荟萃分析》的评论。在此,作者利用七项研究比较了颈椎扩大椎板成形术(EL)与椎板切除术及融合术(LF)治疗三节段或更多节段多节段颈椎脊髓型颈椎病(CSM)的疗效。两种手术均导致相似程度的神经功能恢复和短期颈椎前凸丢失,但发现LF产生更有利的长期结果。
对于三节段或更多节段CSM患者,椎板切除术后进行器械辅助融合术(LF)具有主要优势;开放双侧神经根减压,同时将意外损伤脊髓的风险降至最低,并且融合术可维持颈椎前凸。
有些人可能会认为,使用任何一种EL技术(例如单侧、双侧或棘突劈开技术)导致的意外脊髓/神经根损伤更大。简而言之,为什么要通过操作已经威胁神经功能的压迫性后/后外侧结构来冒脊髓/神经根损伤的风险呢。
尽管在这七篇文章中EL与LF的短期结果似乎相当,但LF产生了更好的长期结果。有些人还会认为,采用开放入路的LF提供了更安全的双侧神经显露和减压。