[The value of MR tomography in traumatic patella dislocations]. / Stellenwert der MR-Tomographie bei traumatischen Patellaluxationen.
Rofo
; 163(1): 32-7, 1995 Jul.
Article
em De
| MEDLINE
| ID: mdl-7626750
ABSTRACT
PURPOSE:
To describe the MR imaging findings in patients with lateral patellar dislocation. MATERIAL ANDMETHODS:
The MRIs of 31 patients with patellar dislocation were evaluated retrospectively. Arthroscopic surgery was performed in 23 cases.RESULTS:
Hemarthrosis was found in 30/31, contusions of the lateral femoral condyle in 30/31 and of the medial patellar facet in 26/31 cases. Injury of the medial patellar retinaculum was seen in 28/31 cases. Osteochondral fractures were found in 18 patients; compared to arthroscopy there were one false-positive and 5 false-negative findings concerning loose cartilage bodies. In 7 cases, patellar dislocation was not suspected before MR imaging.CONCLUSION:
Hemarthrosis, lateral femoral and medial patellar contusion, and retinacular disruption are typical findings after lateral patellar dislocation. A careful search for free osteochondral fragments is mandatory as it influences the indication and performance of arthroscopic surgery.
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Base de dados:
MEDLINE
Assunto principal:
Patela
/
Imageamento por Ressonância Magnética
/
Luxações Articulares
Idioma:
De
Ano de publicação:
1995
Tipo de documento:
Article