Itoh T, Tsuji H
Spine (Phila Pa 1976). 1985 Oct;10(8):729-36. doi: 10.1097/00007632-198510000-00007.
The laminoplasty reported in Spine 1982 by the author (H.T.) was modified by a technical improvement to obtain a more reliable enlargement of the cervical spinal canal. The technical improvements and results are described in detail. The osteotomized laminae that floated en bloc like a hinged door must be stabilized by bone blocks with wire ligatures. Thirty patients with severe cervical myelopathy due to multisegmental spondylosis or ossification of posterior longitudinal ligament underwent surgery. The extent of the enlargement of the canal was 4.1 mm on the average in the anteroposterior diameter, and in no case was a significant reduction in the diameter of the canal noted during the follow-up period. A stable and thorough decompression of the spinal canal was noted on the postoperative computed tomograms with satisfactory surgical results.
作者（H.T.）于1982年发表在《脊柱》杂志上的椎板成形术通过技术改进进行了改良，以更可靠地扩大颈椎管。详细描述了技术改进和结果。像铰链门一样整体浮动的截骨椎板必须用钢丝结扎的骨块进行固定。30例因多节段脊柱退变或后纵韧带骨化导致严重颈椎病的患者接受了手术。椎管前后径平均扩大4.1毫米，随访期间无一例出现椎管直径明显缩小。术后计算机断层扫描显示椎管得到稳定且彻底的减压，手术效果令人满意。
