Patellar luxation, also known as luxating patella, is a hereditary disorder affecting the knees. Patellar luxation is the dislocation of the patella. Known medical issues are a knee problem called patella luxation and canine hip dysplasia. Some common health problems include hip dysplasia, elbow dysplasia, patellar luxation, arthritis, glaucoma, and obesity. Patellar luxation affects 6.2% of Bulldogs. They also screen for patellar luxation and sometimes for elbow dysplasia. The breed also has a susceptibility toward inherited heart disease, eye disease and patellar luxation. Patellar luxation is less common in cats than in dogs. Patellar luxation can affect either or both legs. Patella luxation affects around 2% of Dogues. However, they may have some problems, like epilepsy and patella luxation. Breeders should have their stock certified free of patellar luxation. This makes the shoulder joint prone to dislocation (luxation). Splinting in lateral and extrusive luxation had a poorer prognosis than in root fractures. This might be due to displacement of the tooth through avulsion or luxation.