Figure 4
From: Correlation of bone density to screw loosening in dynamic stabilization: an analysis of 176 patients
Mean HU values for the L3–5 pedicles including the cortical bone was insignificantly lower in the loosened screws compared to the intact screws. (286.70 ± 118.97 vs. 297.31 ± 110.99, p = 0.45).
