Historical Note: The Evolution of Cortical Bone Trajectory and Associated Techniques

Cortical bone trajectory (CBT) for posterior fixation with pedicle screws is considered a relatively new alternative trajectory that travels in the medio-lateral direction in the transverse plane and in the caudo-cephalad path in the sagittal plane. Various biomechanical studies have already validat...

Full description

Saved in:
Bibliographic Details
Published in:Spine Surgery and Related Research 2022/01/27, Vol.6(1), pp.1-9
Main Authors: Kim, Sihyong J., Mobbs, Ralph J., Natarajan, Pragadesh, Fonseka, R. Dineth, Walsh, William R.
Format: Article
Language:English
Subjects:
Cortical Bone Trajectory
Historical Review
Pedicle Screws
Review
Spinal Surgery
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cortical bone trajectory (CBT) for posterior fixation with pedicle screws is considered a relatively new alternative trajectory that travels in the medio-lateral direction in the transverse plane and in the caudo-cephalad path in the sagittal plane. Various biomechanical studies have already validated its superior pullout strength and mechanical stability over the traditional trajectory of convergent pedicle screws. Due to the relatively medial starting point of this trajectory, the CBT also poses the clinical advantage of requiring a smaller surgical field of exposure, thus minimizing tissue and muscle injury while reducing operative time and intraoperative blood loss. The evolution of CBT through time has closely been linked to the unwavering philosophy of prioritizing patient outcomes, advancements in neuronavigational technology, and the mounting biomechanical, morphometric, and clinical evidence. In this historical review, we provide a unique perspective on how CBT surgical technique has developed through time, highlighting key milestones and attempting to explain its explosive rise in popularity.
ISSN:2432-261X
2432-261X
DOI:10.22603/ssrr.2021-0059