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如何把握颈椎后路单开门与双开门的手术适应证?
全网发布: 16:59
颈椎后路手术有单开门与双开门之分,如何在临床上把握不同术式的适应证?新近欧洲脊柱杂志有一篇文章清楚的展示了其研究成果。
Eur Spine J
DOI 10.-010-1369-y
Comparison of enlargement of the spinal canal after cervical laminoplasty: open-door type and double-door type
颈椎板成型术后椎管扩大程度的比较:单开门与双开门
Shigeru Hirabayashi • Hironobu Yamada •Takao Motosuneya • Yoshinobu Watanabe •Makoto Miura • Hiroya Sakai • Takashi Matsushita
&Springer-Verlag 2010
Abstract The purpose of this study was to compare the degree of enlargement of the spinal canal between two methods of cervical laminoplasty (open-door laminoplasty and double-door laminoplasty) and to determine their appropriate surgical indications based on the results. (TBL, one method of open-door type) was performed in 33 patients and (DDL) in 20 patients. The operation level ranged from C2 to C7 in all patients. The width of the spinal canal and the inclination angle of the lamina at the C5 and C6
levels were measured using a computer software program() and pre- and postoperative CT films.
the degree of enlargement of the spinal canal, the mean expansion ratio at the C5 level was 148.9% in TBL and 148.2% in DDL, and there was no significant difference between them. However, at the C6 level, it was 159.0% in TBL and 140.3% in DDL, which was significantly larger in TBL than DDL (p<0.05). The increase of inclination angle of the lamina was 11.0°in TBL and 19.0° in DDL at the C5 level, and 9.2° in TBL and 19.3° in DDL at the C6 level. At both the C5 and C6 levels, it was significantly larger in DDL than TBL (p<0.0001). In conclusion, the appropriate surgical indications of TBL were considered to be (1) cervical spondylotic myelopathy (CSM) combined with hemilateral radiculopathy, (2) severe prominence of ossification of the posterior longitudinal ligament (OPLL),and (3) patients with tiny spinous processes who cannot undergo DDL. Those of DDL were considered to be (1)usual CSM, (2) small and slight prominence of OPLL, (3)CSM combined with bilateral radiculopathy, and (4) cervical canal stenosis combined with instability necessitating posterior spinal instrumentation surgery.
Keywords Cervical laminoplasty _ Open-door laminoplasty _ Double-door laminoplasty _Spinal canal
摘要:本研究的目的是比较颈椎板成型术两种术式(单开门、双开门)椎管扩大程度以及基于研究结果确定单开门与双开门的手术适应证。33例患者使用张力带式椎板成型术(Tension-band laminoplasty,TBL)式,20例患者采用双开门椎板成型术(double-door laminoplasty,DDL);手术节段从C2至C7,C5和C6椎管的宽度、椎板倾斜角使用计算机软件(Image J)测量术前和术后的CT片。关于椎管的扩大程度:TBL术式在C5水平平均扩大率为148.9%,DDL术式平均148.2%,两者无显著性差异;然而,在C6水平,TBL术式的扩大率是159.0%,DDL术式的扩大率是140.3%,两者具有显著性差异(p<0.05)。增加的椎板倾斜角在C5水平,TBL术式是11.0°,DDL术式是19.0°;在C6水平,TBL术式是9.2°,DDL术式是19.3°;在C5、C6水平,DDL术式要比TBL术式倾斜角大(p<0.0001)。总结:TBL术式的外科适应证是(1)脊髓型伴单侧神经根症状者;(2)OPLL严重症状者;(3)棘突较小无法施行DDL术式者 。DDL术式的外科适应证是(1)常见的;(2)OPLL症状轻微者;(3)脊髓型颈椎病 合并双侧神经根症状者;(4)合并不稳,需后路器械固定者。
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