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KMID : 0388720120190020052
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Journal of Korean Society of Spine Surgery
2012 Volume.19 No. 2 p.52 ~ p.58
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Effectiveness of Selective Nerve Root Block for the Treatment of Radiculopathy in Degenerative Lumbar Scoliosis
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Lee Suk-Joong
Shim Dae-Moo
Kim Tae-Kyun
Lee Seong-In
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Abstract
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Study Design: Level III, Retrospective studies.
Objectives: This study was conducted to evaluate the effects and usefulness of the selective nerve root block in advance for the Degenerative Lumbar Scoliosis patients, with radiating pain, who were scheduled for an operation.
Summary of Literature Review: Selective nerve root block was introduced in 1971, by Macnab and it was used to make improvements for radiating pain, as a treatment of multiple lesions or a tool to help making a surgical decision, and to predict the result. After an introduction by Cooper, selective root block on degenerative sclerosis, with lower leg radiating pain, showed fine results on a short term follow-up and moderate to good results on long term follow-up.
Materials and Methods: Between January 2005 to December 2009, 47 cases were selected from the patients, who underwent selective nerve root block, before the operation. The mean follow-up period was 38.4 months and the mean age was 67.1 years. The patients were divided into the operation group and the only selective nerve root block group. The treatment results in the SNRB group and the operation group were analyzed using Kim’s criteria and the Visual Analog Scale score. The groups were radiologically evaluated for the neural compression rate.
Results: Among the 47 cases that were scheduled for an operation, 30 cases did not proceed to the operation. The average VAS score for the selective root block group and the operation group were 7.56 and 8.12, at the preoperative state and the preinjection state, respectively. After the selective nerve root block and surgical treatment, the scores were 3.71 and 2.64 at 1year follow up, respectively. There was no correlation with statistical significance between the initial VAS score and the degree of stenosis noted in the MRI (P>0.05). There was no statistical significant correlation between the initial relief from selective nerve root injections and the degree of stenosis noted in the MRI (P>0.05). However, there was a correlation with statistical significance between the operation rate and the degree of stenosis noted in the MRI (P<0.05).
Conclusion: Selective nerve root block is considered to be an effective treatment for the Degenerative Lumbar Scoliosis patients with radiating pain, who are scheduled for an operation.
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KEYWORD
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Degenerative Lumbar Scoliosis, Radiating pain, Selective nerve root block
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