Abstract
Several predisposing factors, mostly congenital, may lead to chronic patellar instability; those factors have a high genetic incidence. Henry Dejour described four major instability factors: trochlear dysplasia, patella alta, excessive distance between tibial tubercle and trochlear groove, and excessive patellar tilt. Trochlear dysplasia is the main determinant; it is present in 96% of the objective patellar dislocation population (at least one patellar dislocation). In case of severe trochlear dysplasia and chronic patellar instability, it is necessary to surgically address the deformity to achieve stability and congruency. Different surgical techniques have been described: the lateral facet-elevating trochleoplasty (Albee’s procedure), the Bereiter trochleoplasty, the arthroscopic deepening trochleoplasty, and the sulcus-deepening trochleoplasty. This latter will be described in this chapter.
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Vasta, S., Castelhanito, P., Dejour, D. (2020). Trochleoplasty Techniques: Deepening Lyon. In: Dejour, D., Zaffagnini, S., Arendt, E., Sillanpää, P., Dirisamer, F. (eds) Patellofemoral Pain, Instability, and Arthritis. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-61097-8_28
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DOI: https://doi.org/10.1007/978-3-662-61097-8_28
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