Anatomical relation between the accent course of and pedicle within the lumbar vertebrae.
Anat Sci Int. 2018 Feb 09;:
Authors: Shiboi R, Hayashi S, Kawata S, Li ZL, Pieroh P, Koga H, Takano Y, Inanami H, Itoh M
The pedicle screw is among the most typical medical units utilized in spinal surgical procedure. Though there are well-established insertion factors primarily based on anatomical landmarks, such because the mammillary course of and the transverse course of, morphological information on the connection between the accent course of and the pedicle are nonetheless scarce. To make clear this relationship, we recruited 50 instances of hernia of lumbar intervertebral disc, recognized utilizing three-dimensional computed tomography of the lumbar vertebrae. We recognized the pedicle isthmus in a transverse airplane parallel to the higher endplate and measured the angles and distances from the tip of the accent course of to the intersection factors on the medial or lateral floor, or on the midpoint between the 2 intersection factors. In a sagittal airplane exhibiting the pedicle isthmus, we measured the wedging angle of the vertebral physique in addition to the angle from the tip of accent course of to the posterior fringe of the higher endplate of vertebral physique, or to the decrease finish of the pedicle root. We discovered that from the tip of the accent course of passing by way of the pedicle isthmus, a line ought to be directed 20 (± 6.6) levels medially within the transverse airplane and 5 (± four.three) levels cranially within the sagittal airplane. This distance from the tip of the accent course of to the isthmus was 1.5 (± zero.three) cm. Our examine gives a brand new anatomical foundation for the usage of the accent course of as a landmark for insertion of the pedicle screw.
PMID: 29427147 [PubMed – as supplied by publisher]