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The medial synovial fold of the posterior cruciate ligament: cadaveric investigation together with magnetic resonance imaging and histology.
- Source :
-
Journal of computer assisted tomography [J Comput Assist Tomogr] 2014 Jul-Aug; Vol. 38 (4), pp. 503-6. - Publication Year :
- 2014
-
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.<br />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.<br />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.<br />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.
- Subjects :
- Aged
Aged, 80 and over
Cadaver
Female
Humans
Knee Joint ultrastructure
Male
Microscopy, Polarization methods
Middle Aged
Observer Variation
Posterior Cruciate Ligament ultrastructure
Synovial Membrane ultrastructure
Knee Joint anatomy & histology
Magnetic Resonance Imaging methods
Posterior Cruciate Ligament anatomy & histology
Synovial Membrane anatomy & histology
Subjects
Details
- Language :
- English
- ISSN :
- 1532-3145
- Volume :
- 38
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Journal of computer assisted tomography
- Publication Type :
- Academic Journal
- Accession number :
- 24733006
- Full Text :
- https://doi.org/10.1097/RCT.0000000000000089