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Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 6 - 6
1 Sep 2019
Pesonen J Rade M Könönen M Marttila J Shacklock M Vanninen R Kankaanpää M Airaksinen O
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Purposes And Background

Having found a significant limitation of neural movement (66.6%) during SLR performed on the symptomatic side in patients with sub-acute lumbar intervertebral disc herniation (LIDH), we followed up on the same patients over 1.5 years to ascertain if changes in cord excursion accompany changes in clinical symptoms.

Methods

14 patients, who originally had sciatic symptoms due to subacute LIDH, were re-assessed both clinically and radiologically with a 1.5T magnetic resonance (MR) scanner. Displacement of the conus medullaris during the unilateral and bilateral SLR was quantified reliably with a randomized procedure and compared between maneuvers and with data from baseline. Multivariate regression models and backward variable selection method were employed to identify variables more strongly associated with decrease in low back pain and radicular symptoms.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 23 - 23
1 Sep 2019
Munir S Freidin M Rade M Määttä J Livshits G Williams F
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Background

Endplate defect is an MRI trait, found to be associated with intervertebral disc degeneration. There is a lack of understanding regarding the mechanism underlying lumbar disc degeneration (LDD). This large-scale longitudinal population-based study aimed to determine the order of appearance of degenerative change in the vertebral body and intervertebral disc, the influence of endplate degeneration on LBP and whether there is a genetic influence on endplate damage.

Methods

Individuals from the TwinsUK spine study having longitudinal T2-weighted lumbar MRI scans at baseline (n=996) and a decade later (n=438) were included. LDD, vertebral endplate defect expressed as a total endplate (TEP) score and Modic change (MC) were assessed using standard techniques. Mixed-effects models were used to determine the association between spine pathology features adjusted for covariates. Endplate defect heritability was estimated using variance component analysis.