The Association Between Hounsfield Units and Mechanical Failure in ASD Patients.

ABSTRACT:

Study design

Retrospective Cohort Study.

Objectives

Low bone mineral density (BMD) is a known risk factor for revision surgery in patients with adult spinal deformity (ASD). Hounsfield units (HUs) on CT scans have been suggested as a proxy for assessing BMD. This study aimed to determine HUs in the lumbar region and their association with mechanical failure in patients undergoing ASD surgery.

Methods

We included ASD patients undergoing surgery from 2010-2020 with minimum 2-year follow-up. We excluded patients without preoperative CT scans, or a CT scan more than 1 year before surgery. Mechanical failure was defined as proximal junctional failure, pseudarthrosis, or implant failure requiring revision surgery. On preoperative CT scans, HUs were measured on 3 axial slice

SUBMITTER: Heegaard M 

PROVIDER: S-EPMC11559791 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature