| Quantitative magnetic resonance imaging detects changes in meniscal volume in vivo after partial meniscectomy. | |
| | |
MedLine Citation:
|
PMID: 20442327 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: Quantifying changes in meniscal volume in vivo before and after partial meniscectomy (PM) could help elucidate the mechanisms involved in osteoarthritis development after meniscal injury and its surgical treatment. Purpose/ HYPOTHESIS: To determine whether quantitative magnetic resonance imaging (qMRI) can detect the immediate reduction in meniscal volume created by PM, while ruling out changes in unresected structures. We hypothesized that qMRI would be reliable for determining meniscal volume within the repeated images of unresected menisci. Additionally, we expected no significant difference in volume between the uninjured menisci of the injured knees and the same menisci of the uninjured knees. STUDY DESIGN: Cohort study (Diagnosis); Level of evidence, 2. METHODS: Ten subjects with meniscal tears were evaluated with 3-T MRI before and after arthroscopic PM. Manual segmentation was used to create models of the menisci and to determine the preoperative and postoperative meniscal volumes for each subject. The responsiveness and reliability of qMRI for determining meniscal volume in vivo were evaluated using these measurements. We expected a decrease in volume of the resected menisci, but not in the uninjured menisci, after surgery. RESULTS: The mean preoperative volume of the injured menisci was significantly greater than the mean postoperative volume (2896 +/- 277 vs 2480 +/- 277 mm(3); P = .000). There was no significant difference between the mean preoperative and postoperative volumes of the uninjured menisci (2687 +/- 256 vs 2694 +/- 256 mm(3); P = 1.000). CONCLUSION: Manual segmentation demonstrated a significant reduction in the volume of the surgically resected menisci after PM, but no significant change in the volume of unresected meniscal tissue, indicating that the manual segmentation method is responsive. CLINICAL RELEVANCE: This approach offers a novel, reliable method to study the relationship between the volume of meniscal tissue removed during PM and subsequent patient outcomes during long-term clinical studies. |
| | |
Authors:
|
Megan E Bowers; Glenn A Tung; Heidi L Oksendahl; Michael J Hulstyn; Paul D Fadale; Jason T Machan; Braden C Fleming |
Related Documents
:
|
11394597 - Diagnostic performance of clinical examination and selective magnetic resonance imaging... 8284387 - Pediatric knee mr imaging: pattern of injuries in the immature skeleton. 16020557 - Posterior cruciate ligament recess and normal posterior capsular insertional anatomy: m... 12594567 - Mr imaging of meniscal bucket-handle tears: a review of signs and their relation to art... 16824967 - Pharmacokinetic parameters as a potential predictor of response to pharmacotherapy in b... 12898057 - Percutaneous drainage of a postoperative intraspinal hematoma using a tuohy needle. |
Publication Detail:
|
Type: Journal Article; Research Support, N.I.H., Extramural Date: 2010-05-04 |
Journal Detail:
|
Title: The American journal of sports medicine Volume: 38 ISSN: 1552-3365 ISO Abbreviation: Am J Sports Med Publication Date: 2010 Aug |
Date Detail:
|
Created Date: 2010-08-02 Completed Date: 2010-12-03 Revised Date: 2011-08-03 |
Medline Journal Info:
|
Nlm Unique ID: 7609541 Medline TA: Am J Sports Med Country: United States |
Other Details:
|
Languages: eng Pagination: 1631-7 Citation Subset: IM |
Affiliation:
|
Warren Alpert Medical School of Brown University, CORO West, 1 Hoppin Street, Providence, RI 02903, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Arthroscopy Cohort Studies Female Humans Knee Injuries / rehabilitation, surgery Knee Joint / pathology Magnetic Resonance Imaging / methods* Male Menisci, Tibial / anatomy & histology, growth & development*, injuries, surgery Middle Aged Models, Anatomic Osteoarthritis / diagnosis Young Adult |
| Grant Support | |
ID/Acronym/Agency:
|
AR047910/AR/NIAMS NIH HHS; AR047910S1/AR/NIAMS NIH HHS; R01 AR047910-03S1/AR/NIAMS NIH HHS; R01 AR047910-04/AR/NIAMS NIH HHS; R01 AR047910-05/AR/NIAMS NIH HHS; R01 AR047910-06/AR/NIAMS NIH HHS; R01 AR047910-08/AR/NIAMS NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Arthroscopically Assisted 2-Bundle Anatomical Reduction of Acute Acromioclavicular Joint Separations...
Next Document: Reply to Plante et al.: Girls' math achievement is related to their female teachers' math anxiety.