findings indicate that axial ct is superior to conventional radiographs in several areas : ( 1 ) for consistent and accurate demonstration of spondylolysis , ( 2 ) for disclosing the various changes in the apophyseal joints associated with degenerative and reverse spondylolisthesis , and ( 3 ) for uncovering minimal degrees of spondylolisthesis by the presence of a pseudobulging disk in many cases with equivocal or negative radiographs .
C0038018
spondylolysis
C0038016
spondylolisthesis