Measurement techniques and utility of Hounsfield unit values for assessment of bone quality prior to spinal instrumentation: a review of current literature

Q Zaidi, OA Danisa, W Cheng - Spine, 2019 - journals.lww.com
Study Design. A systematic review. Objective. The aim of this study was to evaluate the
clinical utility of assessing bone quality using computed tomography (CT) attenuation in …

Value-added opportunistic CT: insights into osteoporosis and sarcopenia

RD Boutin, L Lenchik - American Journal of Roentgenology, 2020 - Am Roentgen Ray Soc
OBJECTIVE. The purpose of this article is to review the emerging field of opportunistic CT,
which can be used to screen patients for osteoporosis and sarcopenia. CONCLUSION …

Predictive validity of preoperative CT scans and the risk of pedicle screw loosening in spinal surgery

J Bredow, CK Boese, CML Werner, J Siewe… - Archives of orthopaedic …, 2016 - Springer
Introduction Pedicle screw fixation is the standard technique for the stabilization of the spine,
a clinically relevant complication of which is screw loosening. This retrospective study …

Hounsfield units value is a better predictor of pedicle screw loosening than the T-score of DXA in patients with lumbar degenerative diseases

D Zou, Z Sun, S Zhou, W Zhong, W Li - European Spine Journal, 2020 - Springer
Purpose To compare the performance of using Hounsfield units (HU) value derived from
computed tomography and T-score of dual-energy X-ray absorptiometry (DXA) to predict …

The preoperative Hounsfield unit value at the position of the future screw insertion is a better predictor of screw loosening than other methods

J Li, Z Zhang, T Xie, Z Song, Y Song, J Zeng - European radiology, 2023 - Springer
Objective Screw loosening is a widely reported issue after spinal screw fixation and triggers
several complications after lumbar interbody fusion. Osteoporosis is an essential risk factor …

Pedicle screws loosening in patients with degenerative diseases of the lumbar spine: potential risk factors and relative contribution

A Bokov, A Bulkin, A Aleynik, M Kutlaeva… - Global spine …, 2019 - journals.sagepub.com
Study Design: Retrospective cohort study. Objective: To determine risk factors that may affect
the rate of pedicle screws loosening in patients with degenerative diseases of the lumbar …

Level-specific volumetric BMD threshold values for the prediction of incident vertebral fractures using opportunistic QCT: a case-control study

M Dieckmeyer, MT Löffler, M El Husseini… - Frontiers in …, 2022 - frontiersin.org
Purpose To establish and evaluate the diagnostic accuracy of volumetric bone mineral
density (vBMD) threshold values at different spinal levels, derived from opportunistic …

The association between lower Hounsfield units of the upper instrumented vertebra and proximal junctional kyphosis in adult spinal deformity surgery with a minimum …

PG Duan, PV Mummaneni, J Rivera, JMV Guinn… - Neurosurgical …, 2020 - thejns.org
OBJECTIVE Patients undergoing long-segment fusions from the lower thoracic (LT) spine to
the sacrum for adult spinal deformity (ASD) correction are at risk for proximal junctional …

Intravenous contrast injection significantly affects bone mineral density measured on CT

E Pompe, MJ Willemink, GR Dijkhuis, HJJ Verhaar… - European …, 2015 - Springer
Objective The objective is to evaluate the effect of intravenous contrast media on bone
mineral density (BMD) assessment by comparing unenhanced and contrast-enhanced …

Opportunistic osteoporosis screening reveals low bone density in patients with screw loosening after lumbar semi-rigid instrumentation: a case-control study

MT Löffler, N Sollmann, E Burian, A Bayat… - Frontiers in …, 2021 - frontiersin.org
Objective Decreased bone mineral density (BMD) impairs screw purchase in trabecular
bone and can cause screw loosening following spinal instrumentation. Existing computed …