Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Sep 1;11:17519. doi: 10.1038/s41598-021-95232-y

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

A 69 year-old female underwent Dynesys dynamic stabilization (DDS) system at L3–4–5. Left: the measurement of the CT Hounsfield Unit (HU) values of the L5 vertebral body (VB, white circle) and pedicles, including (large black circle at the right pedicle) and excluding the cortical bone (small black circle at the left pedicle) in this patient. The HU value of the VB was 124. The HU values of the right pedicle including and excluding the cortical bone were 206 and 156, respectively. The left HU values of the left pedicle including and excluding the cortical bone were 250 and 180, respectively. Right: although all HU values measured on pre-operative CT in this patient were lower than the mean HU values in our cohort, post-operative 24 months CT demonstrated no screw loosening at L5.