不同固定位置及方向张力带钢板对重建骨盆后环稳定性的影响
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物力学试验机上,分别依次予以0 ~600 N 的垂直加载和0 ~8 N·m 扭转加载,测量并记录整体骨盆垂直位移和扭
转角度,计算骨盆的轴向刚度和扭转刚度;在垂直加载时测量并记录损伤侧骶髂关节在垂直、水平和前后方向上骶
骨与髂骨的相对位移以及骶骨相对于髂骨在矢状面上的旋转。结果 在0 ~600 N 垂直载荷下,固定位置1 的整
张力带钢板选择在髂后上棘水平、钢板两端指向耻骨联合固定,可为骨盆环的整体固定及后环固定提供更好的生
物力学稳定性。
关键词:骨盆骨折;张力带钢板;生物力学;骨盆环损伤模型;内固定位置;内固定方向
: doi 10. 3969 / j. issn. 1002266X. 2018. 37. 002
山东医药2018 年第58 卷第37 期
不骨同盆固后定环位稳置定及性方的向影张响力带钢板对重建
谭国庆1,何吉亮2,朱秉瑞1,徐展望1,周东生3 (1 山东中医药大学附属医院,济南250014;2 山东省千佛山医院; 3 山东省立医院)
摘要:目的 比较3 种不同固定位置及方向的张力带钢板对重建骨盆后环稳定性的影响。方法 选取8 具成
人防腐骨盆标本,制成不稳定性骨盆后环损伤模型。每具骨盆标本后环用3 种不同位置张力带钢板进行固定,固
定位置1:钢板固定在双侧髂后上平、钢
板两端指向前方;固定位置3:钢板固定在髂后上棘下方水平、钢板两端指向前上方。将固定好的骨盆标本置于生
:1 the plate was fixed at the posterior superior iliac spine and both ends of the plate were pointed to the symphysis ossium ; : pubis the fixed position 2 the plate was fixed above the posterior superior iliac spine and both ends of the plate were ; : , pointed to the front horizontally fixed position 3 the plate was fixed below the posterior superior iliac spine and both ends
: Abstract Objective To compare the effects of three different fixed positions of tension band plate on the stability of
reconstructed posterior pelvic ring. Methods Eight adult pelvic specimens were selected to make the damage models of unstable pelvic ring. Each damage model was fixed with tension band plates at three different positions. The fixed position
, , , , TAN Guoqing1 HE Jiliang ZHU Bingrui XU Zhanwang ZHOU Dongsheng ( , , ) 1 The Affiliated Hospital of Shandong University of Traditional Chinese Medicine Jinan 250014 China
of the plate were pointed to the anterosuperior. The fixed damaged pelvis specimens were placed on the biomechanical test
, · , machine and the vertical loading of 0 600 N and the torsion loading of 08 N m were respectively performed the vertical , displacement and torsion angle of the whole pelvis model were measured and recorded and the axial rigidity and torsion ri , gidity of the pelvis model were calculated. The relative displacement between the sacrum and the iliac bone in the vertical
: ( ) 中图分类号: 文献标志码: 文章编号
R683. 3
A
1002266X 2018 37000605
Influence of different fixed positions of tension band plate on stability of reconstructed posterior pelvic ring
体骨盆环垂直位移最小(P 均<0. 05),轴向刚度最接近完整骨盆。在0 ~ 8 N·m 扭转载荷下,固定位置1 的扭转
角度最小(P 均<0. 05),扭转刚度最接近完整骨盆。在0 ~ 600 N 的垂直载荷下,骨盆后环骶髂关节在垂直、左右
和前后方向上位移以及在矢状面上的旋转位移,固定位置1 均最小(P 均<0. 05)。结论 在垂直和扭转载荷下,
horizontal and posteroanterior direction of the injured sacroiliac joint and the rotation of the sacrum on the sagittal plane rel