Balancing Rigidity and Safety of Pedicle Screw Fixation via a Novel Expansion Mechanism in a Severely Osteoporotic Model

<div>(a) Trabecular and (b) composite testing blocks with a representation of an implanted single-armed expandable screw in (c) trabecular and (d) composite blocks.</div>

BioMed Research International

fig2

Figure 2

Figure 2: Balancing Rigidity and Safety of Pedicle Screw Fixation via a Novel Expansion Mechanism in a Severely Osteoporotic Model 