| Value of low-field magnetic resonance imaging in diagnosing meniscal tears in the canine stifle: a prospective study evaluating sensitivity and specificity in naturally occurring cranial cruciate ligament deficiency with arthroscopy as the gold standard. | |
| | |
MedLine Citation:
|
PMID: 20345538 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
OBJECTIVE: To evaluate the sensitivity and specificity of low-field magnetic resonance imaging (lfMRI) for detection of meniscal tears in the canine stifle. STUDY DESIGN: Double-blinded prospective clinical study. ANIMALS: Forty-two consecutive stifles of dogs (>or=20 kg; n=34) with clinical and radiologic signs suspicious for cranial cruciate ligament (CCL) insufficiency. METHODS: Each stifle had 7 predefined lfMRI sequences using a 0.5 T magnet with a human knee coil. After lfMRI, diagnostic arthroscopy was performed by 1 surgeon unaware of the MRI findings. After completion of the study MRI images were read by 1 investigator, unaware of the intraoperative findings. RESULTS: At arthroscopy, 22 stifles had meniscal tears requiring subtotal meniscectomy. Of these only 14 were identified by lfMRI. Overall sensitivity and specificity of lfMRI for detection of meniscal tears were 0.64 (95% confidence interval [95% CI]=0.43, 0.80) and 0.90 (95% CI=0.70, 0.97), respectively. Positive and negative predictive values were 0.88 (95% CI=0.64, 0.97) and 0.69 (95% CI=0.50, 0.83), respectively. Neither the state of dislocation of vertical longitudinal tears nor the amount of CCL rupture had an influence on lfMRI accuracy (P=1.00). CONCLUSION: lfMRI was of low diagnostic accuracy in detecting meniscal tears, when compared with arthroscopy. Especially negative lfMRI findings should be interpreted with caution. CLINICAL RELEVANCE: When using lfMRI as a noninvasive preoperative screening tool for the diagnosis of meniscal tears, a high percentage of missed meniscal tears has to be expected. |
| | |
Authors:
|
Peter Böttcher; Andreas Brühschwein; Philipp Winkels; Hinnerk Werner; Eberhard Ludewig; Vera Grevel; Gerhard Oechtering |
Related Documents
:
|
10340958 - Intra-articular primatised anti-cd4: efficacy in resistant rheumatoid knees. a study of... 20920838 - Magnetic resonance imaging evidence of meniscal extrusion in medial meniscus posterior ... 8372768 - Mr diagnosis of recurrent tears in the knee: value of intraarticular contrast material. 15812708 - Knee instability: the orthopedic approach. 6725688 - Spinal cord or nerve root compression in patients with malignant disease: ct evaluation. 10340958 - Intra-articular primatised anti-cd4: efficacy in resistant rheumatoid knees. a study of... |
Publication Detail:
|
Type: Clinical Trial; Journal Article Date: 2010-03-19 |
Journal Detail:
|
Title: Veterinary surgery : VS Volume: 39 ISSN: 1532-950X ISO Abbreviation: Vet Surg Publication Date: 2010 Apr |
Date Detail:
|
Created Date: 2010-06-04 Completed Date: 2010-09-03 Revised Date: 2011-04-25 |
Medline Journal Info:
|
Nlm Unique ID: 8113214 Medline TA: Vet Surg Country: United States |
Other Details:
|
Languages: eng Pagination: 296-305 Citation Subset: IM |
Affiliation:
|
Department of Small Animal Medicine, University of Leipzig, Leipzig, Germany. boettcher@kleintierklinik.uni-leipzig.de |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Anterior Cruciate Ligament / anatomy & histology, injuries* Arthroscopy / veterinary* Dog Diseases / diagnosis* Dogs Double-Blind Method Female Fibrocartilage / anatomy & histology, injuries Magnetic Resonance Imaging / veterinary* Male Prospective Studies Sensitivity and Specificity Stifle / anatomy & histology, injuries* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Force platform analysis in clinically healthy Rottweilers: comparison with Labrador Retrievers.
Next Document: Effect of needle size and type, reuse of needles, insertion speed, and removal of hair on contaminat...