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The Medial Synovial Fold of the Posterior Cruciate Ligament: Cadaveric Investigation Together With Magnetic Resonance Imaging and Histology

Title
The Medial Synovial Fold of the Posterior Cruciate Ligament: Cadaveric Investigation Together With Magnetic Resonance Imaging and Histology
Author
이봉근
Keywords
posterior cruciate ligament; synovium; MRI; variant
Issue Date
2014-08
Publisher
Lippincott Williams and Wilkins
Citation
Journal of computer assisted tomography, 2014, 38(4), pp.503 - 506
Abstract
Objective: The purposes of our study were to analyze magnetic resonance imaging (MRI) and cadaveric findings concerning the medial synovial fold of the posterior cruciate ligament (PCL) and to classify the types of fold according to anatomic location.Methods: Two musculoskeletal radiologists reviewed MR images of 17 cadaveric knees to classify the types of medial fold of the PCL by consensus. The MRI types were divided into 3 groups. In type A, there was no definitive medial fold; and in type B, inferior-short type, there was a small protrusion of the medial border. Type C, inferior-long type, had a long enough fold to exceed the imaginary line, which is connecting between the medial tibial condyle and posterolateral aspect of the medial femoral condyle. Correlations were sought between the findings derived from the MRI studies and cadaveric dissections. Histologic analyses of the medial fold were also performed.Results: On MRI, the most common type of medial fold was type B (76.4%), followed by type C (11.8%) and type A (11.8%). In the cadaveric investigation, the medial folds of both types B and C were found to project into the medial femorotibial joint. Moreover, there was also a protruding medial fold at the superior aspect of the PCL in the A. Histologic examination of the medial folds revealed collagenous tissue surrounded by synovial cells.Conclusions: Medial folds of the PCL are normal synovial structures that can be seen by MRI and in cadaveric studies in a large proportion of the population.
URI
http://ovidsp.tx.ovid.com/sp-3.28.0a/ovidweb.cgi?&S=HGMMFPDNJCDDFFANNCFKHFOBBFMIAA00&Link+Set=S.sh.24%7c1%7csl_10http://hdl.handle.net/20.500.11754/47981
ISSN
0363-8715
DOI
10.1097/RCT.0000000000000089
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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