Abstract
The patellofemoral joint has a low degree of congruency by nature; therefore, it is more susceptible to dislocation. There are active and passive restraints that prevent to the patella from being subluxed or dislocated. The passive stability depends on statical anatomical restraints, the congruence between trochlea and patella which is low as mentioned above. The active stability is provided by dynamical restraints, the muscles, and the balance between the ligaments; both bony and soft tissues structures provide an active and passive stability which allows the patella to function during knee movements.
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Dejour, D., Byn, P. (2012). Deepening trochleoplasty for patellofemoral instability. In: The Knee Joint. Springer, Paris. https://doi.org/10.1007/978-2-287-99353-4_48
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DOI: https://doi.org/10.1007/978-2-287-99353-4_48
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