CAJ | 학술논문

目的观察滑槽钉生长棒内固定系统置入对脊柱形态发育的影响.方法将15头3个月龄幼猪随机分为3组,A组(5头)为空白对照组,自T6～T15后路切开,显露椎板;B组(5头)为对照组,置入锁定椎弓根钉棒系统;C组(5头)为实验组,置入滑槽钉生长棒内固定系统.实验的目标设计为T6、7,T8、9椎体的平均高度,T7/8、T8/9、T9/10椎间盘的平均高度,C组钛棒上下两端滑动的平均距离,应用X线测量并观察脊柱形态学指标的变化.结果术后3个月,C组T6、7,T8、9椎体的平均高度,T7/8、T8/9、T9/10椎间盘的平均高度与A组差异无统计学意义(P>0.05),而与B组比较显著性增加,差异有统计学意义(P＜0.05),C组钛棒上下两端滑动平均距离44mm.结论滑槽钉生长棒内固定系统对幼猪脊柱的生长发育无明确影响.
목적 관찰활조정생장봉내고정계통치입대척주형태발육적영향.방법 장15두3개월령유저수궤분위3조,A조(5두)위공백대조조,자T6～T15후로절개,현로추판;B조(5두)위대조조,치입쇄정추궁근정봉계통;C조(5두)위실험조,치입활조정생장봉내고정계통.실험적목표설계위T6、7,T8、9추체적평균고도,T7/8、T8/9、T9/10추간반적평균고도,C조태봉상하량단활동적평균거리,응용X선측량병관찰척주형태학지표적변화.결과 술후3개월,C조T6、7,T8、9추체적평균고도,T7/8、T8/9、T9/10추간반적평균고도여A조차이무통계학의의(P>0.05),이여B조비교현저성증가,차이유통계학의의(P＜0.05),C조태봉상하량단활동평균거리44mm.결론 활조정생장봉내고정계통대유저척주적생장발육무명학영향.
Objective To investigate the influence of the instrumentation growing rods of sliding pedicle screw system insertion on the growth of the spine in an animal model.Methods A total of 15 pigs (about 3-month age) were randomly assigned into 3 groups: group A, blank control group only exposing posterior lamellar; group B (control group), inserting the traditional pedicle screw system; group C (test group), inserting the instrumentation growing rods of sliding pedicle screw system. The average heights of T6, 7, 8, 9, and T7/8, T8/9, T9/10 discs, and the distance of both up- and down-ends of titanium rod sliding in group C were measured. X ray was used to examined the morphology of the spine.Results Three months after operation, the average heights of T6, 7, 8, 9, and T7/8, T8/9, T9/10 discs in group C had no remarkble difference from those in group A (P>0.05), but significantly larger than in group B (P<0.05). Growth occurred in both up- and down-ends of the titanium rods for a total average of 44 mm.Conclusion The instrumentation growing rods of sliding pedicle screw system placement has no evident influence on the progression of the immature porcine spine.