What is the definition or description of: patellar dislocation?

Patellar dislocation: Patella dislocation occurs when the patella (kneecap) completes separates and dissociates from the trochlea tearing the medial retinaculum and/or medial patellocemoral ligament with the bony patella positioned in the lateral gutter. Often time articular cartilage damage can occur at the medial facet of the patella and/or lateral femoral condyle.

Slides off femur: A pat dislocation means some forces were placed on the knee that caused the patella 2 slid off the femoral grove & end upon the lateral or outer side of the knee, occasionally tho rarer 2 the inner aspect of the knee. Causes r many. Direct trauma, wt bearing & twist or due 2 congen mal alignment. Treatments r many also. C an ortho sports med 4 aval & plan of rx.