| Meniscal Morphologic Changes on Magnetic Resonance Imaging Are Associated With Symptomatic Discoid Lateral Meniscal Tear in Children. | |
| | |
MedLine Citation:
|
PMID: 22130496 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
PURPOSE: To determine whether meniscal deformation and displacement on magnetic resonance imaging (MRI) are associated with tears by use of arthroscopic findings as a standard of reference in children with discoid lateral meniscus (DLM). METHODS: We reviewed MRI scans and intraoperative videos of 69 consecutive patients (79 knees) treated arthroscopically for suspicious DLM tears. The mean age at surgery was 10.9 years (range, 4.3 to 17.6 years). Signal changes and morphologic changes (deformation or displacement) of DLM on magnetic resonance (MR) images were graded by 2 independent observers using our modifications of previously described classification schemes, and then the grades were determined by consensus of the observers. Meniscal tears were assessed by an observer, blinded to the MRI studies, based on arthroscopic findings. Signal changes and morphologic changes of DLM on MR images were correlated with tears. RESULTS: Tears were found more frequently in menisci showing morphologic changes on MR images (P = .001). Of the 25 menisci with a grade 3 signal change (linear or band-like signal intensity extending to the superior or inferior meniscal surface), 24 had tears, and a horizontal cleavage was the most commonly associated tear type. Of the 50 menisci with a grade 1 (dot-like intrameniscal signal change), grade 2 (linear or band-like intrameniscal signal change), or diffuse signal change, 34 were morphologically changed on MR images, and 29 of these (85%) were torn, whereas 9 of the 16 menisci (56%) not morphologically changed were torn (P = .036). CONCLUSIONS: Preoperative MRI evaluations based on signal intensities do not accurately predict the presence of a DLM tear in children, except when a DLM shows a grade 3 signal change. Meniscal deformation or displacement observed on preoperative MR images suggests a higher risk of meniscal tears, even in menisci with signal changes other than grade 3 changes. LEVEL OF EVIDENCE: Level IV, therapeutic case series. |
| | |
Authors:
|
Won Joon Yoo; Kang Lee; Hyuk Ju Moon; Chang Ho Shin; Tae-Joon Cho; In Ho Choi; Jung-Eun Cheon |
Related Documents
:
|
10359146 - Regression of a large solid papillary craniopharyngioma following fractionated external... 10639816 - Sellar chondroma--case report. 18278746 - Canine pituitary macrotumors. 10089716 - Subacute pituitary apoplexy-analysis of 17 cases. 218136 - The accuracy of predicting histologic grades of supratentorial astrocytomas on the basi... 21304006 - Hounsfield units upon pet/ct are useful in evaluating metastatic regional lymph nodes i... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-11-28 |
Journal Detail:
|
Title: Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association Volume: - ISSN: 1526-3231 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
|
Created Date: 2011-12-1 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8506498 Medline TA: Arthroscopy Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2011 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved. |
Affiliation:
|
Department of Orthopaedic Surgery, Seoul National University Children's Hospital, Seoul, South Korea. |
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: Failed Arthroscopic Repair of a Large Reverse Hill-Sachs Lesion Using Bone Allograft and Cannulated ...
Next Document: Arthroscopic Reduction and Percutaneous Fixation of Perilunate Dislocations and Fracture-Dislocation...