Purpose: It is difficult to evaluate the stability of the lumbar spondylodesis with metallic fixation devices by conventional imaging methods such as radiography or magnetic resonance imaging. It is unknown whether single photon emission computed tomography/computed tomography (SPECT/CT) may be useful to detect a lack of fixation of the pedicle screws and hence to predict instability of the fused vertebral segments.
Materials And Methods: A retrospective analysis of 9 patients who were referred to bone scintigraphy, including combined SPECT/CT, due to persistent pain or discomfort after stabilizing lumbar surgery with metallic implants.