Zhonghua wai ke za zhi [Chinese journal of surgery]
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Zhonghua Wai Ke Za Zhi · Mar 2014
[The optimal insertion position of the lumbar interspinous dynamic stabilization device (Coflex): a biomechanical evaluation].
To evaluate the optimal insertion position of the Coflex lumbar interspinous dynamic stabilization device. ⋯ The insertion of Coflex interspinous dynamic stabilization device can maintain the stability of a partially destabilized specimen back to an intact one in flexion, extension and axial rotation when distance between apex of U-shaped Coflex and dural sac was ≤ 5 mm, but can't return the stability in lateral bending. The Coflex can't return the stability of a partially destabilized specimen back to an intact one in 6 directions when distance between apex of U-shaped Coflex and dural sac was ≥ 10 mm.