| Spondylolysis and spondylolisthesis: prevalence of different forms of instability and clinical implications. | |
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MedLine Citation:
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PMID: 20838368 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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STUDY DESIGN: Imaging study with an evaluation of incidences and clinical correlation. OBJECTIVE: To evaluate the incidence of 3 different types of instabilities in patients with spondylolysis or isthmic spondylolisthesis. Clinical findings are correlated with imaging findings, and the imaging findings are analyzed with regard to their clinical implications. SUMMARY OF BACKGROUND DATA: Spondylolysis and isthmic spondylolisthesis are common disorders. An unstable slip is the most well-known form of instability, but other forms also exist. However, the incidence of these instabilities and their clinical implications are yet unclear. METHODS: A total of 140 patients with 141 levels of spondylolysis identified by MRI (magnetic resonance imaging) were included in this study. Using positional MRI, the instability of the slip, an increased angular movement, and movement in the spondylolytic cleft were assessed. On the basis of clinical findings, the patients were classified as presenting with either radicular or nonradicular symptoms. The incidence of the instabilities was recorded and correlated with the incidence of radicular symptoms. RESULTS: Fifteen patients had an unstable slip (anterior instability); 35, an increased angular movement (angular instability); and 34 patients, a movement in the spondylolytic cleft (posterior instability). All forms of instability could be found together. No instability at all was found in 76 patients. Radicular symptoms were found significantly more often in patients with one or more of the described instabilities compared with patients without instability. CONCLUSION: All 3 described forms of instability are common in spondylolysis or isthmic spondylolisthesis and associated with radicular pain. This finding stresses the value of positional MRI in the evaluation of patients with spondylolysis and isthmic spondylolisthesis, especially if radicular symptoms are present. |
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Authors:
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Pascal Niggemann; Johannes Kuchta; Hans-Konrad Beyer; D Grosskurth; Thorsten Schulze; Karl-Stefan Delank |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Spine Volume: 36 ISSN: 1528-1159 ISO Abbreviation: Spine Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-06 Completed Date: 2012-01-26 Revised Date: 2012-05-07 |
Medline Journal Info:
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Nlm Unique ID: 7610646 Medline TA: Spine (Phila Pa 1976) Country: United States |
Other Details:
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Languages: eng Pagination: E1463-8 Citation Subset: IM |
Affiliation:
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Privatpraxis für Upright MRT, Köln, Germany. p.niggemann@mrt-koeln.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Biomechanics Chi-Square Distribution Germany Humans Joint Instability / diagnosis, epidemiology*, physiopathology Lumbar Vertebrae / physiopathology* Magnetic Resonance Imaging Prevalence Prognosis Range of Motion, Articular Spondylolisthesis / diagnosis, epidemiology*, physiopathology Spondylolysis / diagnosis, epidemiology*, physiopathology |
| Comments/Corrections | |
Comment In:
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Spine (Phila Pa 1976). 2012 Apr 1;37(7):629; author reply 629
[PMID:
22310099
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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