a follow-up of over 400 patients has proved to be very informative : whereas very good or good clinical results can be reported in 73.6 % of such cases with disc herniation , alone , these not having undergone operation before , similar results were only found in 27.2 % of those who had also been suffering from additional causes of lumbalgia like a relatively narrow spinal canal , spondylolisthesis , spondylolysis or nearthrosis for instance .
C0038016
spondylolisthesis
C0038018
spondylolysis