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Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_11 | Pages 225 - 225
1 Jul 2014
Detiger S Holewijn R Hoogendoorn R Helder M Berger F Kuijer J Smit T
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Summary Statement

Conventional imaging techniques lack the ability to objectively assess early stages of intervertebral disc degeneration, characterised by glycosaminoglycan loss. This study shows that MRI T2∗ mapping correlates positively with GAG content and that it provides continuous measurements for disc degeneration.

Introduction

Early degenerative changes arise in the nucleus pulposus (NP) and are characterised by a loss of glycosaminoglycans (GAG). Early disc degeneration (DD) could possibly be treated with upcoming regenerative therapies (e.g. with stem cells and/or growth factors). In order to evaluate degeneration and treatments, a sensitive diagnostic tool is needed. While conventional magnetic resonance imaging (MRI) and x-ray techniques can detect late stages of DD, these techniques lack the ability to detect early degenerative changes. Recently, T2∗ mapping has been proposed as a new technique to evaluate early IVD degeneration, yet the correlation with GAG content and histological features has not been previously investigated. The objective of this study was to determine the value of T2∗ mapping in diagnosing DD by correlating this technique with the biochemical composition of IVDs.