Evaluation of patello-femoral alignment using MRI.
Knee
; 12(6): 447-53, 2005 Dec.
Article
en En
| MEDLINE
| ID: mdl-15967667
ABSTRACT
In evaluating patello-femoral alignment, it is not enough to assess the conformity of the joint two-dimensionally, the direction of the extensor mechanism must be examined three-dimensionally. Using magnetic resonance imaging (MRI), we adopted an ideal extensor mechanism plane intersecting the patellar facet of the femur centrally and perpendicularly. We evaluated the alignment according to the extent to which the patella and/or the tibial tuberosity deviated from the plane. The results suggested that our method is useful for indicating proximal and distal realignment. Furthermore, two-dimensional finite element analysis in the patello-femoral joint showed that peak stress was significantly higher in the dislocation group than in the no-dislocation group. This indicates that osteoarthritic change in the future is a risk in the dislocation group.
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Banco de datos:
MEDLINE
Asunto principal:
Rótula
/
Imagen por Resonancia Magnética
/
Luxación de la Rodilla
/
Fémur
/
Articulación de la Rodilla
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Año:
2005
Tipo del documento:
Article