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出 处:《北京医科大学学报》1997年第3期211-213,共3页Journal of Peking University(Health Sciences)
摘 要:目的:研制一种经椎弓根脊柱侧凸体外矫正系统并初步用于临床。方法;常规方法处理脊柱侧凸病变后,在上端中立椎体之上一推凹侧椎弓根与下端Harrnigton稳定区的一推弓根安置推弓银钉,其尾部露于皮外,以器械逐渐矫正畸形。结果:经3.5~4年随访,3例先天性脊柱侧凸,C0bb50°~90°效果满意。1例退行性腰椎侧凸获得症状改善。结论:经椎弓根外矫正固定术矫正力强,符合脊柱结构的生物力学特征,安全,避免了再次手术取出内固定物,并可直接对撑开棍作力学监测。Objective: To develop a transpedicular external correction system and apply it clinically. Methods, After the tissues in the curvature section had been prepared by conventional procedures one pedicle screw was each inserted into the pedicle above the upper neutral vertebra and into that in the lower stable zone on the concave side with their tail parts extending out of skin. Distraction was effected by the external correction system. Results:In a follow-up period of 3. 5 to 4 years, 3 cases with congenital scoliosis of 50 to 90 degrees of Cobb angle got satisfactory results. One case of degenerative lumbar scoliosis had improved symptoms and function.Conclussion:This system provided powerful correction forces and conformed to the biomechanical features of the structure of the spine. It has high safety and can dispense with another operation to remove the internal instruments. Moreover,the distractive stress can be monitored on the rod.
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