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KMID : 0388720150220020037
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Journal of Korean Society of Spine Surgery
2015 Volume.22 No. 2 p.37 ~ p.42
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Union Rates of Autologous Bone Marrow, Local Autobone and Biphasic Calcium Phosphate Mixed Graft in Lumbar Posterolateral Fusion
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:Park Man-Jun
:Ko Young-Chul/:Eun Il-Soo/:Huh Jung-Wook/:Hwang Keum-Min/:Park Sook-Hyun/:Park Tae-Hong
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Abstract
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Study Design : A retrospective study.
Objectives : We examined union rates and clinical outcomes to evaluate the efficacy of using autologous bone marrow along with a local autobone and biphasic calcium phosphate mixed graft with posterolateral fusion in spinal stenosis and spondylolisthesis.
Summary of Literature Review : In lumbar posterolateral fusion, union rates of biphasic calcium phosphate and local autobone mixed graft are low compared to union rates of autogenous iliac bone graft.
Materials and Methods : Among the patients who had lumbar posterolateral fusion with autologous bone marrow along with local autobone and biphasic calcium phosphate mixed graft between February 2013 and January 2014, we analyzed 40 patients who were available for at least one year of follow-up. There were 22 cases with spinal stenosis and 18 cases with spondylolisthesis. Bone fusion was determined along with the fusion rates based on Lenke's criteria (citation). All patients were evaluated postoperatively at one year, using 3D CT. and the clinical outcomes were assessed using Kim's method (citation).
Results : In spinal stenosis, bone union was observed in 19 cases out of 22 (86.4%), and in case of spondylolisthesis, bone union was observed in 16 cases out of 18 (88.9%). In spinal stenosis, the clinical outcomes were: 2 excellent, 16 good, 3 fair, and 1 poor; in other words 18 cases (81.8%) displayed good or excellent outcomes. In spondylolisthesis, 2 excellent, 12 good, 4 fair and 0 poor; in other words, 14 cases (77.8%) showed good or superior outcomes.
Conclusions : Posterolateral fusion using autologous bone marrow along with a local autobone and biphasic calcium phosphate mixed graft showed similar bone fusion rates to using autogenous iliac bone graft. Therefore, this method could serve as an alternative to using autogenous iliac bone graft in posterior lumbar fusion.
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KEYWORD
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Spinal stenosis, Spondylolisthesis, Posterolateral fusion, Biphasic calcium phosphate, Autologous bone marrow
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