原椎

Result: During the operation of 56 cases, different extent of conglutination were found, especially in patients undergoing laminectomy.

结果：56例患者手术中发现原手术部位均有不同程度的粘连，尤以椎板切除者为著。

5 Create the inferior screw model Bisectioning the included angle between exterior and interior screw and theincluded angle between ecto-upper and ento-upper screw in AutoCAD2006 software,Create a plane traverse the two bisection points and the core of the pedicle.

采用上述辅助定位后如遇椎弓根部穿破情况则需要手动调整螺钉以使螺钉刚好与原穿破侧椎弓根骨壁相切。 1.2.5创建下侧进钉方向的椎弓根螺钉模型：在AutoCAD2006程序中将椎弓根螺钉内外夹角、上方夹角两等分，由同侧两等分点与椎弓根中心点共同创建一平面，依该平面与同侧球在下终板平面交点创建下方螺钉模型。

objective: to evaluate low-field mri in the diagnosis of primary spinal subdural tumors.

目的：探讨mri对椎管髓外硬膜下原发肿瘤的诊断价值。

Some evidence indicates that the combination of extrinsic, intrinsic and genetic factors all play a role to cause the disc degeneration, with a progressive decrease in proteoglycan content leading to dehydration of the nucleus pulposus, and Type Ⅰ collagen begins to appear in the matrix, the ratio between Type Ⅰ and Type Ⅱ increases. All these cause the swelling pressure, disc height and the disc load bearing ability decrease. The disc progressively herniate and cause radiculopathy and myelopathy.

内因、外因及遗传方面的诸多因素导致椎间盘逐步退变后，其实质就是基质中蛋白多糖的减少，含水量降低，Ⅰ型胶原出现在基质中，Ⅰ、Ⅱ型胶原的比例明显上升，髓核呈纤维样改变，导致椎间盘的膨胀压降低，承重能力下降，椎间高度降低，椎间盘承受的重力不能平均地向各方向传递，致使纤维环疲劳、破裂、髓核突出，造成脊髓或马尾神经受压，引起严重后果。

Injection collagenase in epidural space and on the surface of intervertebra disc can not enter into the intervertebra disc though diffusion and permeation way.

在硬膜外间隙和椎间盘表面注射胶原酶不能通过扩散和渗透的途径进入椎间盘内。

ResultsAlmost all the cases obtained a good clinical effect after the operation. The symptoms and signs were both relieved. Lumbar lordotic angle and intervertebral space height on radiology were restored obviously. Spinal fusion rate achieved 96.4% after the follow-up.

结果几乎所有患者手术后原症状和体征均得到缓解，影像学上的腰椎前凸角、椎间隙高度指数都有明显恢复，手术后6~26个月，脊柱融合率达到96.4%。

The risk of a new adjacent vertebral fracture was 2.5-fold higher than the risk of a new nonadjacent vertebral fracture (4.03% compared with 1.59%).

结果：1226例未经药物治疗的绝后骨质疏松妇女被纳入本研究对象，在两年的随访中发现196 (16.0%)例患者出现292处新的新鲜椎体骨折，在1226例研究对象中在原椎椎体骨折邻近再发生骨折患者人数为108(8.8%)。292处新鲜椎体有136(47%)处为原椎体骨折邻近椎体再次骨折。

Results There was moderate or strong negative correlation among the indexes of the degeneration of intervertebral disc including the relative area of vascular bud, the ratio of the uncalcified and the calcified layer, the quantitation of collagen type Ⅱand the indexes of osteoporosis including the thickness ratio of cortical bone, the relative area of bone trabecula, the density of femoral bone and vertebral body bone, the max stress and straining of bone.

结果 骨质疏松相关指标骨皮质厚度指数、骨小梁相对面积、股骨密度、椎体骨密度与椎间盘退变指标终板血管芽相对面积、非钙化/钙化层比值、Ⅱ型胶原定量之间存在中度到强度的负相关，而与Ⅹ型胶原表达存在中度到强度的正相关，其中椎体骨密度与软骨终板的Ⅹ型胶原相关性最强。

Contents of observation including: X-ray photography. histologrioal examination, morphologic quantitative analysis, biochemical and mechanical measurement.

将胶原与羟基磷灰石按1∶2的比例组合成CHA，分别植入兔桡骨干、股骨髁间及椎板骨缺损区中。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。