Document Detail


Posterolateral fusion for isthmic spondylolisthesis in adults: analysis of fusion rate and clinical results.
MedLine Citation:
PMID:  9884288     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This is a retrospective study of 83 consecutive adult patients with isthmic spondylolisthesis who underwent identical decompressive surgery combined with posterolateral spine fusion. We sought to determine factors that affect the fusion rate and clinical outcomes for adult patients with isthmic spondylolisthesis. The outcome of operative treatment for isthmic spondylolisthesis in adults has been poorly documented, as opposed to the treatment of children and adolescents. From 1989 to 1994, 83 consecutive adult patients (age 19-66 years; average, 38 years) underwent surgical treatment consisting of the Gill procedure and posterolateral fusion for isthmic lumbosacral spondylolisthesis. Seventy-three patients (46 men and 27 women) were available for an average of 3.8 years' follow-up (1.0-7.4 years). Thirty-eight underwent one-level fusion, and 35 underwent two-level fusions. Pedicle screw instrumentation was performed in 69 patients. A postoperative questionnaire including the Roland index, clinical charts, and radiographs were reviewed by an independent observer to assess the postoperative course, clinical results, and fusion status. Twenty-five variables were evaluated to determine which affected the fusion and success rates. Primary radiologic fusion and clinical success rates were 78 and 71%, respectively. There was a strong positive correlation between radiologic fusion and clinical success. Overall, single-level fusions showed an 82% fusion rate, and two-level fusions, a 74% rate. For two-level fusions, a significantly higher fusion rate was achieved with a rigid pedicle screw-fixation system than a semirigid system (79 vs. 57%). For smokers, cessation from smoking postoperatively did not increase the fusion rate, and patients who continued to smoke after surgery showed a significantly higher rate of pseudarthrosis. Worker's compensation status did not affect clinical results significantly. Patients who continued to take nonsteroidal antiinflammatory drugs (NSAIDs) >3 months postoperatively showed significantly lower fusion and success rates (44 and 37%). Single-level lumbar fusion for isthmic spondylolisthesis was equally effective with either rigid or semirigid pedicle screw instrumentation. For multilevel spine fusion in isthmic spondylolisthesis, rigid pedicle screw-fixation systems resulted in a high fusion rate. A smoking history or NSAIDs use postoperatively had strong negative influences on the fusion and clinical success rates.
Authors:
M Deguchi; A J Rapoff; T A Zdeblick
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of spinal disorders     Volume:  11     ISSN:  0895-0385     ISO Abbreviation:  J Spinal Disord     Publication Date:  1998 Dec 
Date Detail:
Created Date:  1999-05-04     Completed Date:  1999-05-04     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8904842     Medline TA:  J Spinal Disord     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  459-64     Citation Subset:  IM    
Affiliation:
Division of Orthopedic Surgery, University of Wisconsin, Madison, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Anti-Inflammatory Agents, Non-Steroidal / adverse effects
Female
Humans
Lumbosacral Region / surgery
Male
Middle Aged
Retrospective Studies
Smoking / adverse effects
Smoking Cessation
Spinal Fusion / methods*
Spondylolisthesis / radiography,  rehabilitation*,  surgery*
Therapeutics
Chemical
Reg. No./Substance:
0/Anti-Inflammatory Agents, Non-Steroidal

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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