Patellar Luxation in Dogs (Slipped Knee Cap)

Source: PetWave, Updated on July 16, 2015
Patellar Luxation

Definition of Patellar Luxation

Patellar luxation, commonly called a “slipped knee cap,” refers to dislocation or displacement of the patella bone from the knee joint. This is one of the most common canine knee problems. Patellar luxation can exist at birth or be acquired later on. Genetic and developmental factors can contribute to luxating patellas by altering the alignment of the shin and thigh bones as they meet at the knee. Trauma to the bones or tissues surrounding and supporting the knee can also cause patellar luxation. Most cases are probably hereditary. Patellar luxation is prevalent in miniature and toy breeds, although larger breeds can be affected. Luxating patellas cause mild to excruciating pain. Affected dogs become lame in the rear and may develop an odd skipping gait. They often have trouble standing up and are reluctant to run or jump.

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