股骨头坏死(osteonecrosis of the femoral head,ONFH)是临床常见难治性疾病。该病确切病理生理机制尚不完全清楚,普遍认为与骨内循环中断和最终骨组织死亡紧密相关。ONFH的预防和治疗一直是临床骨科医生面临的巨大挑战。其诊断水平随着...股骨头坏死(osteonecrosis of the femoral head,ONFH)是临床常见难治性疾病。该病确切病理生理机制尚不完全清楚,普遍认为与骨内循环中断和最终骨组织死亡紧密相关。ONFH的预防和治疗一直是临床骨科医生面临的巨大挑战。其诊断水平随着MRI等影像技术的发展和近年来对疾病的深入认识而不断提高。目前临床治疗方法众多,一般根据患者年龄,骨坏死分期、分型,以及对保留关节治疗的依从性等因素个体化综合考虑,目前尚未达成统一的专家意见。其中,ONFH分期、分型对术者选择治疗方案具有重要参考价值,近年来结合国人ONFH发病特点,学界提出了中国分期、中日友好医院(CJFH)分型,此共识也将其与国际骨循环研究协会(ARCO)分期共同引入,为ONFH个体化治疗提供指导。中国微循环学会骨微循环专业委员会组织国内ONFH领域的专家,共同制定《股骨头坏死临床诊疗技术专家共识(2022年)》,以期为ONFH的规范诊断和个体化治疗技术选择提供一定参考意见。展开更多
The introduction of dental operating microscope and microscopic instruments including ultrasonic tips has revealed the endodontic therapy.Dental operating microscope provides magnification and illumination for the ope...The introduction of dental operating microscope and microscopic instruments including ultrasonic tips has revealed the endodontic therapy.Dental operating microscope provides magnification and illumination for the operational area.Cases which should be treated by surgical approach in the past can be managed predictably by nonsurgical micro-endodontics.The use of dental operating microscope and ultrasonics in non-surgical endodontics includes location of missed canal,removal of intracanal post and separated instruments,negotiation of ledged canals,management of apical transportation and perforation repair.展开更多
文摘股骨头坏死(osteonecrosis of the femoral head,ONFH)是临床常见难治性疾病。该病确切病理生理机制尚不完全清楚,普遍认为与骨内循环中断和最终骨组织死亡紧密相关。ONFH的预防和治疗一直是临床骨科医生面临的巨大挑战。其诊断水平随着MRI等影像技术的发展和近年来对疾病的深入认识而不断提高。目前临床治疗方法众多,一般根据患者年龄,骨坏死分期、分型,以及对保留关节治疗的依从性等因素个体化综合考虑,目前尚未达成统一的专家意见。其中,ONFH分期、分型对术者选择治疗方案具有重要参考价值,近年来结合国人ONFH发病特点,学界提出了中国分期、中日友好医院(CJFH)分型,此共识也将其与国际骨循环研究协会(ARCO)分期共同引入,为ONFH个体化治疗提供指导。中国微循环学会骨微循环专业委员会组织国内ONFH领域的专家,共同制定《股骨头坏死临床诊疗技术专家共识(2022年)》,以期为ONFH的规范诊断和个体化治疗技术选择提供一定参考意见。
文摘The introduction of dental operating microscope and microscopic instruments including ultrasonic tips has revealed the endodontic therapy.Dental operating microscope provides magnification and illumination for the operational area.Cases which should be treated by surgical approach in the past can be managed predictably by nonsurgical micro-endodontics.The use of dental operating microscope and ultrasonics in non-surgical endodontics includes location of missed canal,removal of intracanal post and separated instruments,negotiation of ledged canals,management of apical transportation and perforation repair.
