Importance of MRi in the diagnosis of meniscal ossicle. Apropos of 2 cases
Defaux, F.; Cotty, P.; Lacour, J.F.; Fabaron, F.; Picot, F.; Vandermarcq, P.
Revue de Chirurgie Orthopedique et Reparatrice de l'Appareil Moteur 84(1): 93-96
1998
ISSN/ISBN: 0035-1040 PMID: 9775029 Document Number: 485600
To determine the contribution of magnetic resonance (MR) imaging in the diagnosis of meniscal ossicle. Two cases of meniscal ossicle were evaluated by plain radiography and MR imaging. Sagittal and coronal T1-weighted (400/15), proton density and T2-weighted (2,000/20,80) sequences were performed with 0.5 T magnet. Plain radiography revealed a triangular ossified body in the postero-medial aspect of the knee joint. MR images demonstrated that these ossicles were located within the posterior horn of the medial meniscus. The signal of these ossicles was isointense with that of bone marrow in all sequences. MR findings allow the diagnosis of meniscal ossicle and help to differentiate it from osteochondral loose body.