The Journal of Medical Investigation
Online ISSN : 1349-6867
Print ISSN : 1343-1420
ISSN-L : 1343-1420
Hybrid technique of cortical bone trajectory and pedicle screwing for minimally invasive spine reconstruction surgery: A technical note
Yoichiro TakataTetsuya MatsuuraKosaku HigashinoToshinori SakaiTakuya MishiroNaoto SuzueHirofumi KosakaDaisuke HamadaTomohiro GotoToshihiko NishishoYuichiro GodaRyosuke SatoTakahiko TsutsuiIchiro TonogaiFumitake TezukaKazuaki MinetaTetsuya KimuraAkihiro NittaTadahiro HiguchiShingo HamaKoichi Sairyo
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2014 Volume 61 Issue 3.4 Pages 388-392


The pedicle screw (PS) system is widely used for spinal reconstruction. Recently, screw insertion using the cortical bone trajectory (CBT) technique has been reported to provide increased holding strength of the vertebra, even in an osteoporotic spine. CBT is also beneficial due to its low invasiveness. We have been performing hybrid reconstruction with CBT at the cranial level and PS at the caudal level based on the concept of minimal invasiveness. We applied this hybrid technique to 6 cases of degenerative spondylolisthesis. Surgery was completed with a small skin incision of around 5-6 cm, which is shorter than that of the conventional PS procedure. The mean percent slippage before surgery was 19.8%, and this was reduced to 3.9% after surgery and almost maintained 3 months after surgery. Furthermore, no major surgical complications were observed. Here, we introduce the minimally invasive hybrid technique of CBT-PS. Surgeons should be aware of the procedure as an option for minimally invasive lumbar spine reconstructive surgery. J. Med. Invest. 61: 388-392, August, 2014

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© 2014 by The University of Tokushima Faculty of Medicine
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