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Journal of Korean Neurosurgical Society 1997;26(9): 1254-1264.
Multiple Spondylolytic Spondylolisthesis.
Young Soo Kim, Dong Kyu Chin, Yong Eun Cho, Byung Ho Jin, Young Sul Yoon, Do Heum Yoon
Department of Neurosurgery, College of Medicine, Yonsei University, Seoul, Korea.
Multiple spondylolytic spondylolisthesis is very uncommon, and surgical reports are also scarce. This study describes the clinical characteristics, radiologic findings and surgical methods in 18 cases of multiple spondylolytic spondylolisthesis encountered by the authors between January, 1993 and December, 1996. Two hundred and thirty spondylolytic spondylolisthesis patients underwent surgery at this hospital during the same period, and in 18 of these, the spondylolysis was multiple, an incidence of 7.8%. There were 16 cases of two level spondylolyses, 15 of which were at L4+L5, and one case at the L3+L4 level, as well as two cases of three level spondylolyses, one at L2+L3+L4 and the other at the L3+L4+L5 level. All 18 cases showed spondylolisthesis at L4/5 and two showed two-level spondylolisthesis at L4/5 and L5/S1. A decompressive laminectomy(Gill operation) was performed in all cases and in addition, two level 360degreesfixation with pedicle screws and PLIF with cages was applied in 16 cases, and two level PLIF with cages in the other two. All showed good post-operative results. In conclusion, the condition was more common in females and bilateral L4 and L5 pars interarticularis defect and L4/5 spondylolisthesis were more common. Decompressive laminectomy(Gill operation) and two level 360degreesfixation with pedicle screws and PLIF with cages was found to be an effective operative choice.
Key Words: Spondylolysis; Multiple spondylolyses; Spondylolisthesis; Pedicle screw fixation; PLIF with cages; 360degree fixatiol
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