out of 400 patients who underwent posterolateral or purely dorsal spondylodesis of the lumbosacral joint with a divided sacral strut or sacral knee using distracting harrington struts , a total of 68.5 % were free of complaints -- 100 % in cases of fractures and destruction , spondylarthroses and osteochrondroses , 73 % in cases of spondylolyses with and without spondylolistheses , and only 49 % among the so-called `` '' failed-back '' '' patients who had already undergone one or more previous operations .
C0038018
spondylolyses
C0038016
spondylolistheses