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BMC Musculoskeletal Disorders

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Open Access 01-12-2019 | Research article

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

Authors: Hsi-Hsien Lin, Jung-Pan Wang, Cheng-Li Lin, Yu-Cheng Yao, Shih-Tien Wang, Ming-Chau Chang, Po-Hsin Chou

Published in: BMC Musculoskeletal Disorders | Issue 1/2019

Abstract

Background

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.

Methods

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.

Results

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.

Conclusions

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.

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Title: 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
Authors: Hsi-Hsien Lin
Jung-Pan Wang
Cheng-Li Lin
Yu-Cheng Yao
Shih-Tien Wang
Ming-Chau Chang
Po-Hsin Chou
Publication date: 01-12-2019
Publisher: BioMed Central
Published in: BMC Musculoskeletal Disorders / Issue 1/2019
Electronic ISSN: 1471-2474
DOI: https://doi.org/10.1186/s12891-019-2602-4

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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

Abstract

Background

Methods

Results

Conclusions

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Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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