alexa Occult neural foraminal stenosis caused by association between disc degeneration and facet joint osteoarthritis: demonstration with dedicated upright MRI system


OMICS Journal of Radiology

Author(s): Splendiani A, Ferrari F, Barile A, Masciocchi C, Gallucci M

Abstract Share this page

The aim of our study was to evaluate the presence of dynamic foraminal stenosis using a new low-field dedicated magnetic resonance (MR) unit with a balancing system that allows images to be acquired both in the recumbent and upright position. Imaging of lumbar spine with the patient in a supine, nonweight-bearing position is likely to misrepresent the degree and potential risk of spinal stenosis.

Materials and methods
In the period between September 2008 and May 2011, we selected 630 symptomatic patients aged 40–65 years (mean age 56) who underwent conventional MR in clinostatic position. The study only included selected patients (total 160) who underwent clinostatic and orthostatic evaluation using a dedicated MR system (G-scan). The biomechanical parameters were also considered. Changes in the dimension of the neural foramina were compared using the presence of disc and facet degeneration by statistical analysis.

Stenosis of the intervertebral foramen was never found in the presence of normal intervertebral discs either in the presence or in the absence of facet disease, in either clinostatic or orthostatic position. Sixty-one stenotic levels were detected which were visualised exclusively in scans obtained under weight-bearing conditions. We named this dynamic condition “occult stenosis”. In all of these cases, disc disease was associated with facet pathology.

Our data show that the association between disc pathology and facet osteoarthrosis can cause occult foraminal stenosis. Strategies to image the spine under physiological load conditions may improve the clinical diagnosis of radicular pain.

This article was published in Radiol Med and referenced in OMICS Journal of Radiology

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version