Biomechanical study of the funnel technique applied in thoracic pedicle screw replacement.

ABSTRACT:

Background

Funnel technique is a method used for the insertion of screw into thoracic pedicle.

Aim

To evaluate the biomechanical characteristics of thoracic pedicle screw placement using the Funnel technique, trying to provide biomechanical basis for clinical application of this technology.

Methods

14 functional spinal units (T6 to T10) were selected from thoracic spine specimens of 14 fresh adult cadavers, and randomly divided into two groups, including Funnel technique group (n = 7) and Magerl technique group (n = 7). The displacement-stiffness and pull-out strength in all kinds of position were tested and compared.

Results

Two fixed groups were significantly higher than that of the intact state (P < 0.05) in the spinal central axial direction, compression, a

SUBMITTER: Huang YJ 

PROVIDER: S-EPMC4209655 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature