板层骨

Methods: A bonygroove was made on the upper rim of the acetabulum, and extended medially and upward on the ilium.

切取带有髂骨内板骨膜和软骨的全层骨块，嵌入骨槽中，形成杯口状，骨膜伸展贴附在髂骨外板上。

Results In the heated bone ,bone lacunae were empty ,no bone cells existed ,bone lamella was seen ,granular basophilia staining was seen in some parts of the lamella. In bone medulla , no cell existed , thrombosis occurred in some blood ,partial bone lamella disappeared.

结果 整个视野内骨陷窝空虚，无骨细胞存在，骨板尚清晰，部分骨板出现颗粒状嗜碱性染色，骨髓腔内，基本无细胞结构，血管闭塞，哈佛氏系统结构不清，部分区域骨板层状结构消失，呈一片均质的嗜伊红染色。

RESULTS: The relative levels of COX2 mRNA as well as the contents of PGE2 and cAMP were elevated after fracture, and were significantly higher in study group than those in control group at 3 and 4 weeks postoperatively. Histological observation revealed that the mineralization of cartilage matrix, the endochondral bone formation and the callus remodelling took place earlier in study group.

结果：环氧化酶2(COX2) mRNA的表达量以及PGE2和cAMP的含量均较骨折前显著上升，且实验组在术后3~4 wk时以上指标明显高于对照组，组织学结果则显示实验组骨折间隙内软骨内成骨和编织骨向板层骨的改建均领先于对照组。

Primary bone is a temporary tissue and is soon replaced by the definitive, lamellar variety of bone

初级骨是暂时性的组织，不久就为永久性的板层骨所代替。

Obvious cartilage and island-distributed immature bone formation in implants of the experiment side were observed at 2 weeks after operation, and massive mature bone observed at 4 weeks. Newly formed bone had fused and formed mature lamellar bone and trabecularism. No bone formation was observed in the control side of the mice.

实验侧术后2周出现大量软骨组织和呈岛状散在分布的骨组织，术后4周可见大量成骨组织，新生骨相互融合生长并形成较为成熟的板层骨和骨小梁结构；对照侧未见骨组织形成。

Methods From March 1994 to December 2002, on the basis of the ordinary operative method, Pemberton method was improved for 48 cases of DDH 49 articulatio coxae which had superficial and small acetabula but big heads of femur. Osteotomy points were moved higher to enlarge area of bone flap turned over. A piece of full thickness ilium including periosteum was removed as a free bony graft. Capsula articularis growing thicker was made into 2 layers, of which the inner layer was used to tighten articularis and the outer layer was used to stabilize bone flap.

1994年3月～2002年12月，对DDH髋臼浅而小、股骨头大的48例49个髋关节，在通常术式的基础上，对Pemberton截骨术式进行改良，将截骨点上移，扩大翻转骨瓣面积；取髂骨全层骨板连带附着的骨膜植骨；增厚的关节囊制成两层，内层紧缩关节，外层稳定骨瓣。

They are composed of dense lamellar bone originating from the medial maxillae and are covered with erectile mucosal tissue.

他们由上颌骨内侧突出的致密板层骨构成，上方覆盖能肿胀变硬的粘膜组织。

They are composed of dense lamellar bone originating from the medial maxillae and are covered with erectile mucosal tissue.

他们由上颌骨内侧突出的致密板层骨构成，上方垂直覆盖粘膜组织。

In the period of 8 to 16 weeks after operation,new bone was formed continuously, artificial bone gradually reconstructed to mature lamellar bone,bone trabeculae and medullary cavity,etc. Conclusion The preparation of CPC is simple.

结果 CPC植入后4周有新生软骨形成及未成熟的骨组织，可见大量的软骨细胞、成骨细胞、胶原组织及较多的小血管。8～16周新骨继续生成，人工骨逐渐改建为成熟的板层骨、骨小梁和髓腔结构。

Results There existed new cartilage and new immature bone tissue in the bone substitute in 4 weeks after operation, as well as mass of cartilageous cells,osteoblasts, collagen tissue and more small vessels were seen. In the period of 8 to 16 weeks after operation,new bone was formed continuously, artificial bone gradually reconstructed to mature lamellar bone,bone trabeculae and medullary cavity,etc.

结果 CPC植入后4周有新生软骨形成及未成熟的骨组织，可见大量的软骨细胞、成骨细胞、胶原组织及较多的小血管。8～16周新骨继续生成，人工骨逐渐改建为成熟的板层骨、骨小梁和髓腔结构。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。