PMID- 33915615
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220309
IS  - 1976-1902 (Print)
IS  - 1976-7846 (Electronic)
IS  - 1976-1902 (Linking)
VI  - 16
IP  - 1
DP  - 2022 Feb
TI  - Cortical Trajectory Screw Fixation in Lumbar Spine Surgery: A Review of the 
      Existing Literature.
PG  - 127-140
LID - 10.31616/asj.2020.0575 [doi]
AB  - Posterior lumbar fusion is a safe and effective surgical method for diseases, 
      such as lumbar stenosis, spondylolisthesis, lumbar instability, spinal deformity, 
      and tumor. Pedicle screw (PS) fixation was first introduced by Bouche and has 
      been adopted as the gold standard for posterior lumbar fusion. Santoni and 
      colleagues introduced a new methodological screw insertion technique that uses a 
      cortical bone trajectory (CBT), described as that from a medial to lateral path 
      in the transverse axial plane and caudal to the cephalad path in the sagittal 
      plane through the pedicle for maximum contact of the screw with the cortical 
      bone. Owing to the lower invasiveness, superior cortical bone contact, and 
      reduced neurovascular injury incidence, the CBT technique has been widely used in 
      posterior lumbar fusion; however, these advantages have not been proven in 
      clinical/radiological and biomechanical studies. We designed the present study to 
      review the existing evidence and evaluate the merit of CBT screw fixation. Six 
      electronic databases were searched for relevant articles published in August 2020 
      using the search terms "cortical bone trajectory," "CBT spine," "CBT fixation," 
      "cortical pedicle screws," and "cortical screws." Studies were analyzed and 
      divided into the following groups: "biomechanics investigation," "surgical 
      technique," and "clinical/radiological studies." Most studies compared CBT and PS 
      fixation, and the CBT screw fixation method showed better or similar outcomes.
FAU - Kim, Kun-Tae
AU  - Kim KT
AD  - Regional Trauma Center, Gyeongsang National University Hospital, Jinju, Korea.
AD  - Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang 
      National University Hospital, Gyeongsang National University College of Medicine, 
      Jinju, Korea.
FAU - Song, Myung-Geun
AU  - Song MG
AD  - Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang 
      National University Hospital, Gyeongsang National University College of Medicine, 
      Jinju, Korea.
FAU - Park, Young-Jin
AU  - Park YJ
AD  - Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang 
      National University Hospital, Gyeongsang National University College of Medicine, 
      Jinju, Korea.
FAU - Lee, Dong-Yeong
AU  - Lee DY
AD  - Department of Orthopaedic Surgery and Joint Center, Barun Hospital, Jinju, Korea.
FAU - Kim, Dong-Hee
AU  - Kim DH
AD  - Department of Orthopaedic Surgery and Institute of Health Science, Gyeongsang 
      National University Hospital, Gyeongsang National University College of Medicine, 
      Jinju, Korea.
LA  - eng
PT  - Journal Article
DEP - 20210503
PL  - Korea (South)
TA  - Asian Spine J
JT  - Asian spine journal
JID - 101314177
PMC - PMC8873998
OTO - NOTNLM
OT  - Cortical bone trajectory
OT  - Cortical screw
OT  - Lumbar fusion
OT  - Pedicle screw
OT  - Pedicle screws
COIS- No potential conflict of interest relevant to this article was reported.
EDAT- 2021/04/30 06:00
MHDA- 2021/04/30 06:01
PMCR- 2022/02/01
CRDT- 2021/04/29 21:25
PHST- 2020/11/11 00:00 [received]
PHST- 2020/12/13 00:00 [accepted]
PHST- 2021/04/30 06:00 [pubmed]
PHST- 2021/04/30 06:01 [medline]
PHST- 2021/04/29 21:25 [entrez]
PHST- 2022/02/01 00:00 [pmc-release]
AID - asj.2020.0575 [pii]
AID - asj-2020-0575 [pii]
AID - 10.31616/asj.2020.0575 [doi]
PST - ppublish
SO  - Asian Spine J. 2022 Feb;16(1):127-140. doi: 10.31616/asj.2020.0575. Epub 2021 May 
      3.