Fig. 4From: Biomechanical investigation of a minimally invasive posterior spine stabilization system in comparison to the Universal Spinal System (USS)Setup with specimens mounted for biomechanical testing after instrumentation with USS (a), Globus revolve polyaxial (b) and Globus revolve monoaxial (c) [29]. Each specimen is positioned in the machine axis and attached to the machine actuator (top) and the load cell (bottom) with two cardan joints after clamping of the foam bars between two metal platesBack to article page