Titanium Alloy Cage Implantation for the Treatment of Ischemic Necrosis of Femoral Head in Dogs  

作　　者：王锐英 高燕 杨述华 杨操 

机构地区：[1]Department of Orthopedics,Subsidiary Hospital,Guilin Medical College Guilin 541001,China [2]Department of Orthopedics,Union Hospital,Tongji Medical College,Huazhong Science and Technology University Wuhan 430022, China

出　　处：《Journal of Huazhong University of Science and Technology(Medical Sciences)》2008年第2期163-166,共4页华中科技大学学报（医学英德文版）

基　　金：a grant from the National Natural Sciences Foundation of China (No. 30170945)

摘　　要：To study the effect of titanium alloy cage on the treatment of the ischemic necrosis of femoral head in dog, the model of the ischemic necrosis of femoral head was made with the liquid nitrogen in 15 hybrid adult dogs. The titanium alloy cage made of a hollow cylinder was driven into the subchondral bone of necrotic femoral head via central channel. The dogs were divided into 3 groups, each group was sacrificed 3, 6, 12 weeks after the operation respectively. No collapse of femoral head was observed after the operation. The position of the cages was good on radiograph. Microscopically, the cancellous bone of necrotic femoral head rebuilt gradually and grew into cage. After 12 weeks of creeping substitution, the cancellous bone filled up the hollow cavity and holes of the cages. It is concluded that the titanium alloy cage can provide structural support for the subchondral bone and prevent collapse and can be used for the treatment of the ischemic necrosis of femoral head.To study the effect of titanium alloy cage on the treatment of the ischemic necrosis of femoral head in dog, the model of the ischemic necrosis of femoral head was made with the liquid nitrogen in 15 hybrid adult dogs. The titanium alloy cage made of a hollow cylinder was driven into the subchondral bone of necrotic femoral head via central channel. The dogs were divided into 3 groups, each group was sacrificed 3, 6, 12 weeks after the operation respectively. No collapse of femoral head was observed after the operation. The position of the cages was good on radiograph. Microscopically, the cancellous bone of necrotic femoral head rebuilt gradually and grew into cage. After 12 weeks of creeping substitution, the cancellous bone filled up the hollow cavity and holes of the cages. It is concluded that the titanium alloy cage can provide structural support for the subchondral bone and prevent collapse and can be used for the treatment of the ischemic necrosis of femoral head.

关 键 词：femur head necrosis titanium alloy cage TREATMENT 

分 类 号：R681.8[医药卫生—骨科学]