Objective To elucidate the new development, structural features and appl ication of the lumbar interspinous process non-fusion techniques. Methods With the review of the development course and important research works in the field of the lumbar inter-spinous process non-fusion techniques, the regularity summary, science induction, and prospect were carried out. Results The lumbar inter-spinous process non-fusion technique was a part of non-fusion insertof spinal division posterior surface. According to the design, it could be divided into two major categories: dynamic and static systems. The dynamic system included Coflex and device for intervertebral assisted motion; the static system included X-STOP, ExtenSure and Wall is. The lumbar inter-spinous process non-fusion technique was a new technique of spinal division, it could reserve the integrated function of intervertebral disc and zygapophysial joint, maintain or recover the segmental movement to a normal level, and have no adverse effect on the neighboring segments. A lot of basic and cl inical researches indicated that lumbar inter-spinous process insert had extensive appl ication to curatio retrogression lumbar spinal stenosis, discogenic low back pain, articular process syndrome, lumbar intervertebral disc protrusion and lumbar instabil ity and so on. Conclusion With the matures of lumbar inter-spinous process non-fusion techniques and the increased study of various types of internal fixation devices, it will greatly facil itate the development of treatment of lumbar degenerative disease. But long-term follow-up is needed to investigating the long-term efficacy and perfect operation indication.
目的 探讨64排螺旋CT血管探针技术在评价肾动脉狭窄中的价值。 方法 回顾分析2010年4月－2012年1月51例行64排螺旋CT肾动脉血管成像且肾动脉狭窄患者的临床资料，对双侧肾动脉行血管探针重组，分析血管狭窄的原因，以及累及范围、狭窄程度。 结果 51例患者双侧肾动脉共105支（3支副肾动脉），其中管腔正常肾动脉27支，管腔有狭窄肾动脉78支。管腔狭窄者中，肾动脉斑块血管共65支，累及范围主要为局限性，以混合性及轻度狭窄为主；肾动脉夹层4支，累及范围主要为节段性，假腔内无对比剂，真腔轻中度狭窄为主；肾动脉肿瘤包绕共有9支，累及范围主要为节段性，腔轻度狭窄为主。 结论 64排螺旋CT血管成像清晰显示肾动脉，血管探针技术分析血管快速、可靠，能准确评价肾动脉狭窄，对指导临床治疗具有重要的意义。