Fig. 4From: Biomechanical effect of pedicle screw distribution in AIS instrumentation using a segmental translation technique: computer modeling and simulationAverage (bars = min, max) bone-screw forces (pattern no. 1 (reference): bilateral screws at every level fused; pattern no. 2: convex alternate screw dropouts; pattern no. 3: concave alternate screw dropouts; pattern no. 4: convex periapical screw dropouts; pattern no. 5: concave periapical screw dropouts)Back to article page