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                                Patella Alta
Patella alta (high riding patella) refers to an abnormally elevated position of the patella within the femoral trocheal groove. 
A tentative diagnosis is based on the relative position of the patella with respect to the groove in a standing position, as well as the ability of the patella to ride off axis and proximal to the groove, when the limb is extended and rotated, without pressure applied to the patella.

Post_Op_XrayA lateral radiograph is taken with the stifle in a semi-flexed position and with the patellar ligament taut. This true lateral radiograph gives a good visualization of the proximal patella placement to femoral tracheal groove.

 Surgical treatment of patella alta consists in a distal transposition of the tibial tuberosity,typically combined with a lateral transposition. The tibial tuberosity is then immobilized via K-wire. 

Post-Op X Ray

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