The most common health issue is Luxating patella.

Cavaliers can be subject to a genetic defect of the femur and knee called luxating patella.

A luxating patella is a common occurrence in the knee where the knee dislocates and goes back into place.

The breed is also one of the least likely to be affected by a luxating patella, where the knee cap slips out of place.

Even with Luxating Patella, there may be no symptoms or only mild ones, such as intermittent limping in the rear leg.

Skipperke's primary orthopedic problem tends to be luxating patella and Legg-Perthes syndrome.

Pomeranian's can get Luxating patella and Tracheal collapse.

Luxating Patella cannot be present without the knee being loose, but a loose knee is not necessarily slipping out of the joint.

Chihuahuas are also known for a genetic condition called 'luxating Patella,' a genetic condition that can occur in all dogs.

Havanese suffer primarily from luxating patella, liver disease, heart disease, cataracts and retinal dysplasia.

Health conditions known to affect this breed are allergies, glaucoma, cataracts, hip dysplasia, entropion, and luxating patella.

The health problems shared with this breed include mitral valve disease, luxating patella, and hereditary eye issues such as cataracts and retinal dysplasia.

There are many health issues associated with owning any teacup dog, such as luxating patella, heart disease, hydrocephaly, hypoglycemia, CPPS, open fontanels and seizures.

Known issues include hip dysplasia, luxating patella, and hypothyroidism, as well as eyelid and lash disorders such as distichiae, entropion, and ectropion.

Kelpies are a hardy breed with few health problems, but they are susceptible to disorders common to all breeds, like cryptorchidism, hip dysplasia, cerebellar abiotrophy and luxating patella.

Often a dog-owner may be told his pet has "loose knee," but this is not a medical term, and it is not correct to use it interchangeably with Luxating Patella.

Basset Hounds are also prone to epilepsy, glaucoma, luxating patella, thrombopathia, Von Willebrand disease, hypothyroidism, hip dysplasia, and elbow dysplasia.

Certain genetic disorders have been found in Yorkshire Terriers, including distichiasis, hydrocephalus, hypoplasia of dens, Legg-Calvé-Perthes syndrome, luxating patella, portosystemic shunt, retinal dysplasia, tracheal collapse, and bladder stones.

Among 619 living dogs in the 2002 Australian Terrier Club of America survey, the most commonly reported health problems were endocrine (primarily diabetes), allergic dermatitis, and musculoskeletal (primarily luxating patella and ruptured cranial cruciate ligament).

Health testing should be performed by all responsible breeders and anyone purchasing a puppy should be aware of the genetic problems which have been found in some individuals of the breed, such as PRA (Progressive Retinal Atrophy), luxating patella, and hip dysplasia).

Most of the condo owners now regard Vista as forever at risk, ready to buckle like a trick knee.

"Now tell me all about the kid in the john, with her cute little neck knife and her trick knee holster."

A trick knee, a bad wrist or a nagging weight loss can spell disaster in the final throes of competition.

The simple-minded Ray has a trick knee.

For Tubby, the trick knee has become a metaphor for his entire life: the anxiety, depression and dread he feels every day.

Apparently, Gimpy had a trick knee, and I had just made it jump through its hoop.

He tried to ignore the creaking of his trick knee and the rasping of his breath.

Johnny had been one of the youngest adults left behind: heart murmur, trick knees, a surfeit of astrophysicists.

Not about emotional issues, heaven forfend, but about the swollen glands, the trick knee, the acid reflux.

Coleman tried to join the army two months after Pearl Harbor; he flunked the physical on trick knees and a spastic colon.

Powerful Kichiro, still limping on his trick knee, smiled and moved the tape into his opponents' territory by a distance of two wall panels.

Despite a trick knee he is drafted; Jack suspects that her father, who is on the local draft board and opposes their relationship, is the reason.

Mr. Lewis dredges up a world of constant humiliations, from his own trick knees to Grandma's being caught with her teeth in a glass.

He has a trick knee he can throw out of joint, he can fake a nervous fit, and a lot of other things.

Starting Jan. 1, 1995, the bill would impose increasingly tight limits on the ability of insurers to exclude from coverage pre-existing conditions, like a trick knee or a cancer.

In Manhattan, Celso Quinones, the doorman at the Park West Hotel, said his trick knee starts to bother him when the temperatures drop.

Some breeds of dogs are prone to certain genetic ailments such as elbow or hip dysplasia, blindness, deafness, pulmonic stenosis, cleft palate, and trick knees.

Corporal Donner's trick knee went out when he was climbing the crates, and Private Simms skinned his elbow when he fell on the macadam."

Her son, a top member of the quiz team in Bible class as a boy, a sports fan with a trick knee and a National Merit Scholar, is no more.

Allison Jolly, for example, a 31-year-old Olympic trials contender in the 470 Class dinghy, has inquired about the institute's program; she has a trick knee and wrist injury.

IT was damp, cold and bitter enough to coax a trick knee into mischief or leave a 42-year-old back perplexed in midflex or plunge a famously fragile mood into crankiness.

For Mr. Lodge, the book was an opportunity to confront his own problems, beginning with his trick knee, an "internal derangement" he shares with his protagonist, Tubby Passmore.

He could have played last season with a trick knee, but was asked by Pitino to redshirt, and now the coach has someone the same age as Chris Webber (24) coming off the bench.

"First of all," he said, "you know, when you worry about your knee, your trick knee, two bad disks and your lower belly, you're not leaping into bed like it's Woodstock.

He then attempted to join the army, but at his induction physical it was discovered that a football injury that he had sustained at Shattuck had left him with a trick knee.

Luxating patella (or trick knee, subluxation of patella, floating patella, or floating kneecap) is a condition in which the patella, or kneecap, dislocates or moves out of its normal location.