Skip to main content

Comparison of intra subject repeatability of quantitative fluoroscopy and static radiography in the measurement of lumbar intervertebral flexion translation.

Breen, A. C., Claerbout, E., Hemming, R., Ayer, R. and Breen, A. C., 2019. Comparison of intra subject repeatability of quantitative fluoroscopy and static radiography in the measurement of lumbar intervertebral flexion translation. Scientific Reports, 9, 19253.

Full text available as:

[img]
Preview
PDF (OPEN ACCESS ARTICLE)
s41598-019-55905-1.pdf - Published Version
Available under License Creative Commons Attribution.

1MB
[img] PDF
Article file.pdf - Accepted Version
Restricted to Repository staff only
Available under License Creative Commons Attribution Non-commercial.

170kB

Abstract

Low back pain patients are sometimes offered fusion surgery if intervertebral translation, measured from static, end of range radiographs exceeds 3mm. However, it is essential to know the measurement error of such methods, if selection for back surgery is going to be informed by them. Fifty-five healthy male (34) and female (21) pain free participants aged 21-80 years received quantitative fluoroscopic (QF) imaging both actively during standing and passively in the lateral decubitus position. The following five imaging protocols were extracted from 2 motion examinations, which were repeated 6 weeks apart: 1. Static during upright free bending. 2. Maximum during controlled upright bending, 3. At the end of controlled upright bending, 4. Maximum during controlled recumbent bending, 5. At the end of controlled recumbent bending. Intervertebral flexion translations from L2-S1 were determined for each protocol and their measurement errors (intra subject repeatability) calculated. Estimations using static, free bending radiographic images gave measurement errors of up to 4mm, which was approximately twice that of the QF protocols. Significantly higher ranges at L4-5 and L5-S1 were obtained from the static protocol compared with the QF protocols. Weight bearing ranges at these levels were also significantly higher in males regardless of the protocol. Clinical decisions based on sagittal translations of less than 4mm would therefore require QF imaging.

Item Type:Article
ISSN:2045-2322
Uncontrolled Keywords:low back pain ; spinal injuries ; spinal surgery ; quantitative fluoroscopy ; spine ; kinematics ; quantitative imaging biomarkers
Group:Faculty of Science & Technology
ID Code:33095
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:02 Dec 2019 11:47
Last Modified:18 Dec 2019 14:17

Downloads

Downloads per month over past year

More statistics for this item...
Repository Staff Only -