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International Orthopaedics
Published in: International Orthopaedics 7/2010

01-10-2010 | Original Paper

Cervical myelopathy due to single level prolapsed disc and spondylosis: a comparative study on outcome between two groups

Authors: Jong-Seon Ryu, Jong-Woo Chae, Woo-Jin Cho, Han Chang, Myung-Sang Moon, Sung-Soo Kim

Published in: International Orthopaedics | Issue 7/2010

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Abstract

This article describes a retrospective study on myelopathy, induced by monosegmental prolapsed disc and spondylosis. To assess pre- and postoperative clinical and radiological findings related to myelopathy, and factors influencing the outcome, 20 disc herniation (group A) and 11 spondylosis patients (group B) were studied. Average duration of myelopathy in groups A and B were 3 and 8.7 months, respectively. Anterior decompression and fusion were performed. Pre- and postoperative clinical and radiological findings and outcomes were assessed. Average preoperative disc heights were 85.9% of normal in group A and 72.7% in group B. Average anteroposterior canal diameter and Pavlov ratio at diseased level were 13.9 mm and 0.81 in group A, respectively, and 12.1 mm and 0.78 in group B. Five group A (25.0%) and four group B cases (36.4%) had radiculopathy. Cord compressions among 20 group A patients were median in seven and paramedian in 13. In the 11 group B patients, nine were median and two were paramedian. High signal intensity was observed in 19 group A and ten group B patients. Postoperative regression of T2-weighted high signal intensity in 14 group A (73.7%) and two group B patients (20.0%) was observed. Preoperative JOA scores in groups A and B were 10.3 and 12.8, respectively, which became 66.2 and 22.5 postoperatively. Neurological recovery was poorer in group B than in group A. Outcome was influenced by chronicity of myelopathy.
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Metadata
Title
Cervical myelopathy due to single level prolapsed disc and spondylosis: a comparative study on outcome between two groups
Authors
Jong-Seon Ryu
Jong-Woo Chae
Woo-Jin Cho
Han Chang
Myung-Sang Moon
Sung-Soo Kim
Publication date
01-10-2010
Publisher
Springer-Verlag
Published in
International Orthopaedics / Issue 7/2010
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-009-0934-7

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