SPECT-CT Assessment of Pseudarthrosis after Spinal Fusion: Diagnostic Pitfall due to a Broken Screw
Figure 3
SPECT-CT revealed an intense uptake of the L5-S1 endplates (a) and a fracture of the right S1 screw without uptake and without bone resorption around the screw (c; arrow). The left S1 screw (c) and both L5 screws (b) showed no abnormalities, whereas the rods did.
