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β-磷酸三钙/α-半水硫酸钙复合人工骨的水热合成与性能检测 被引量:3
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作者 杜明奎 毛克亚 +2 位作者 杨筠 李江涛 王继芳 《武警医学》 CAS 2010年第8期659-662,665,共5页
目的水热合成β-磷酸三钙/α-半水硫酸钙(β-TCP/α-CSH))复合人工骨,并检测其作为植骨材料的性能指标。方法用牛松质骨煅烧获得的多孔β-TCP与二水硫酸钙粉末按一定比例混合,置于水热釜中,同步水热合成β-TCP/α-CSH,比例分别为7:3、5:... 目的水热合成β-磷酸三钙/α-半水硫酸钙(β-TCP/α-CSH))复合人工骨,并检测其作为植骨材料的性能指标。方法用牛松质骨煅烧获得的多孔β-TCP与二水硫酸钙粉末按一定比例混合,置于水热釜中,同步水热合成β-TCP/α-CSH,比例分别为7:3、5:5、3:7的复合人工骨,并进行X线衍射、扫描电镜、孔隙率、自固化性能和生物力学检测。结果 X线衍射检测结果显示制备的复合人工骨颗粒主要成分为β-TCP、α-CSH和少量的羟基磷灰石,扫描电镜结果显示复合人工骨具有孔隙结构,孔隙由大孔/微孔结构组成,孔隙率为49.85%~56.75%,保持天然松质骨双峰曲线的孔隙结构,β-TCP/α-CSH复合人工骨具有原位自固化性能,压缩强度3.23~9.24MPa。结论利用多孔β-TCP和二水硫酸钙能够同步水热合成β-TCP/α-CSH复合人工骨,该人工骨具有天然松质骨的孔隙机构,并具有自固化性能。 展开更多
关键词 Β-磷酸三钙 α-半水硫酸钙 植骨替代物 多孔结构 自固化
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Antibiotic-Loaded Resorbable Bone-Graft Substitute: A New Treatment for Osteomyelitis/Osteitis
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作者 Bemd Gachter Jennifer Frieda Angehrn +2 位作者 Stephane Schlunke Sebastian Probst Paul Biegger 《Journal of Pharmacy and Pharmacology》 2016年第8期405-412,共8页
Patients with osteomyelitis require lengthy antibiotic treatment, often only to see the inflammation flare up once antibiotics are suspended. Unfortunately, patients often discontinue the antibiotic treatment due to c... Patients with osteomyelitis require lengthy antibiotic treatment, often only to see the inflammation flare up once antibiotics are suspended. Unfortunately, patients often discontinue the antibiotic treatment due to collateral effects. Patients with osteitis are often polymorbid patients with other severe diseases such as diabetes mellitus and polyneuropathy, arteriopathy or polyarthfitis with immunosuppression. The eight patients included in the study presented nine bones with osteomyelitis (macroscopically, bacteriologically, histologically or radiologically). The diseased part of the bone was resected, a locally radical debridement was done and a biopsy for bacteriology and histology were taken. The residual bone was then drilled out and filled with antibiotic-loaded (gentamicin) resorbable bone-graft substitute under radiologic imaging control. In total, seven patients are currently without recurrent osteomyelitis with a mean follow-up of 5.77 months (2-11 months). The Kaplan Meier curve shows 80% survival rate without recurrent osteomyelitis at 11 months. Only one patient suffering from Morbus Buerger had a relapse osteomyelitis after cutting off severing his foot while swimming in the sea. Antibiotic-loaded resorbable bone-graft substitute is easy to use, has in our hands few complications and low recurrence rate. 展开更多
关键词 OSTEOMYELITIS bioabsorbable antibiotic carrier bone-graft substitute.
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