What is the difference in morphologic features of the lumbar vertebrae between Caucasian and Taiwanese subjects? A CT-based study: implications of pedicle screw placement via Roy-Camille or Weinstein method

Safe placement of pedicle screws without jeopardizing neurovascular structures medially and anteriorly is important during spine surgery. Inferior breach of pedicle is also dangerous due to low margin of error. Lumbar morphology and identical pedicle orientation at L1 to L5 shown on CT scan of young...

Full description

Saved in:
Bibliographic Details
Published in:BMC musculoskeletal disorders 2019-05, Vol.20 (1), p.252-252, Article 252
Main Authors: Lin, Hsi-Hsien, Wang, Jung-Pan, Lin, Cheng-Li, Yao, Yu-Cheng, Wang, Shih-Tien, Chang, Ming-Chau, Chou, Po-Hsin
Format: Article
Language:English
Subjects:
Anatomic study
Bone surgery
CAT scans
Computed tomography
Diagnostic imaging
Lumbar vertebrae
Medical imaging
Methods
Morphology
Pedicle screws
Population
Racial difference
Roy-Camille method
Scoliosis
Spine (lumbar)
Surgery
Vertebrae
Weinstein method
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:Safe placement of pedicle screws without jeopardizing neurovascular structures medially and anteriorly is important during spine surgery. Inferior breach of pedicle is also dangerous due to low margin of error. Lumbar morphology and identical pedicle orientation at L1 to L5 shown on CT scan of young Taiwanese patients (90 patients) were analyzed and compared with findings reported for Caucasian subjects. Previously reported techniques were employed to quantitatively elucidate the parameters regarding lumbar morphology and identical pedicle orientation at each vertebra. The parameters for pedicle angle (PA), pedicle diameter (PD), pedicle axis distance (PAD), midline axis distance (MAD), transverse pedicle axis distance (TPAD) and transverse intertangential angle (TITA) were measured. Taiwanese subjects had different PA, PD, PAD, MAD at L1 to L5 and TITA at L3 to L5 compared with Caucasian subjects. L5 had the most convergent pedicle axis, the widest PD and the shortest antero-posterior axis morphology. This study provides detailed information for identifying pedicle orientation during pedicle screw placement and elucidate racial differences in lumbar morphology and pedicle orientation between Taiwanese and Caucasian populations.
ISSN:1471-2474
1471-2474
DOI:10.1186/s12891-019-2602-4