Research Article

Monoaxial Pedicle Screws Are Superior to Polyaxial Pedicle Screws and the Two Pin External Fixator for Subcutaneous Anterior Pelvic Fixation in a Biomechanical Analysis

Figure 5

Typical torsion loading curves which show that the external fixator is stiffer than the pedicle screw systems.
683120.fig.005a
(a)
683120.fig.005b
(b)