| Juxtafacet cysts of the lumbar spine: a positional MRI study. | |
| | |
MedLine Citation:
|
PMID: 21560008 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BACKGROUND/AIMS: Juxtafacet cysts (JFC) are related to facet joint degeneration. Supine MRI is routinely used to evaluate JFC. However, some JFC are missed and found only intraoperatively. The present study addresses positional MRI features and factors leading to variation in the size of JFC. METHODS: Fifty patients in whom positional MRI had been performed were investigated retrospectively and 67 distinct intraspinal or intraneuroforaminal were JFC found. Signal intensity, size of the JFC, the presence and variance of a vertebral slip and the angular movement of affected segments were assessed in supine, neutral sitting, flexion (sitting) and extension (standing). The overall movement of the spine and the lordosis angle in different positions were measured. RESULTS: JFC varied in size in segments with unstable slip and increased angular movement (variation of the angle in the affected segment in function: 13.3 degrees compared to 8.7 degrees). JFC with bright signals tended to vary in size compared to JFC with intermediate or low signal intensity (all: p < 0.001). Joint effusion and displacement of effusion lead to formation and variations in the size of JFC. JFC were most prominent in extension: 6.7 mm, less prominent in supine: 5.5 mm and in neutral sitting position: 4.6 mm (all p < 0.05). The detection rate for JFC was 97% for extension, 89% for supine and 78% for neutral sitting. CONCLUSIONS: The detection rate of JFC improves with increasing lordosis of the spine and under weight-bearing conditions, particularly when standing. Unstable slipping or increased angular movement affects the size of JFC. |
| | |
Authors:
|
Pascal Niggemann; Johannes Kuchta; Janine Hoeffer; Dieter Grosskurth; Hans-Konrad Beyer; Karl-Stefan Delank |
Related Documents
:
|
6781248 - Brainstem evaluation with ct cisternography. 20448428 - Supratentorial high convexity intradural extramedullary cavernous angioma: case report. 18071288 - Myoepitheliomas of the soft palate: helical ct findings in two patients. 9051028 - Benign and malignant musculoskeletal masses: mr imaging differentiation with rim-to-cen... 17034948 - Interhemispheric transfer time and structural properties of the corpus callosum. 7881888 - Technical note: low density contrast in upper abdominal computed tomography. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-5-11 |
Journal Detail:
|
Title: Skeletal radiology Volume: - ISSN: 1432-2161 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
|
Created Date: 2011-5-11 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7701953 Medline TA: Skeletal Radiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Radiology, University Hospital Bonn, Sigmund-Freud-Straße 25, 53127, Bonn, Germany, Pascal.Niggemann@ukb.uni-bonn.de. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Long-term in-vitro precision of direct digital X-ray radiogrammetry.
Next Document: Reliability of the assessment of lower limb torsion using computed tomography: analysis of five diff...