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

Jong Seon Ryu, Jong Woo Chae, Woojin Cho, Han Chang, Myung Sang Moon, Sung Soo Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1011-1015
Number of pages5
JournalInternational Orthopaedics
Volume34
Issue number7
DOIs
StatePublished - Oct 2010
Externally publishedYes

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Spondylosis
Intervertebral Disc Displacement
Spinal Cord Diseases
Outcome Assessment (Health Care)
Radiculopathy
Decompression
Retrospective Studies

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Cervical myelopathy due to single level prolapsed disc and spondylosis : A comparative study on outcome between two groups. / Ryu, Jong Seon; Chae, Jong Woo; Cho, Woojin; Chang, Han; Moon, Myung Sang; Kim, Sung Soo.

In: International Orthopaedics, Vol. 34, No. 7, 10.2010, p. 1011-1015.

Research output: Contribution to journalArticle

Ryu, Jong Seon ; Chae, Jong Woo ; Cho, Woojin ; Chang, Han ; Moon, Myung Sang ; Kim, Sung Soo. / Cervical myelopathy due to single level prolapsed disc and spondylosis : A comparative study on outcome between two groups. In: International Orthopaedics. 2010 ; Vol. 34, No. 7. pp. 1011-1015.
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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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