Patellar Luxation - loose kneecap and skipping gait
Patellar Luxation - loose kneecap and skipping gait
Important beforehand: Fidello is not a veterinarian. This page is intended to inform you and does not help you obtain a diagnosis. Are you unsure about your dog's health, or do you recognize the signs described below? Always contact a veterinarian.
Patellar luxation is one of the most commonly reported joint problems in small dog breeds, although the condition also occurs in larger dogs. The kneecap (patella) slips out of the groove it normally moves up and down in. This can cause a characteristic skipping gait, and over time, wear on the joint.
What is patellar luxation?
The kneecap is meant to run in a groove at the front of the thigh bone, known as the trochlear groove. In patellar luxation, this groove is too shallow, the surrounding tendons and ligaments are misaligned, or the leg conformation is abnormal, causing the kneecap to slip out of the groove either inward (medial) or outward (lateral). Medial luxation is clearly more common than lateral luxation, especially in small breeds. Veterinarians classify the severity into four grades: from grade I, where the kneecap rarely slips and returns on its own, to grade IV, where the kneecap sits permanently outside the groove and can no longer be pushed back by hand.
Which dogs are at risk?
Medial patellar luxation is most often reported in small and toy breeds, such as the Yorkshire Terrier, Pomeranian, Chihuahua, Boston Terrier, Pekingese, Cavalier King Charles Spaniel, and the miniature or toy Poodle. In larger breeds such as the Labrador Retriever, Golden Retriever, Akita, Malamute, Boxer, and Husky, the less common lateral form is seen more often, and patellar luxation appears to be diagnosed more frequently in recent years. Hereditary factors, such as a too-shallow groove or abnormal leg conformation, are considered the main risk factor; this does not mean every dog of a susceptible breed develops symptoms.
Symptoms
The most characteristic sign is a sudden, brief skipping gait: the dog momentarily lifts a hind leg while walking or running, hops a few steps, and then carries on as if nothing happened. This can start at a young age, often before the first year of life. At higher grades, the lameness may return more often, last longer, or cause a permanently altered, slightly bowed stance of the hind leg. Signs that call for urgent attention include: a leg that suddenly bears no weight at all, clear pain on touch, or swelling of the joint.
When to see the vet?
Contact a vet as soon as you notice a recurring skipping gait, a temporarily lifted hind leg, or a changed gait in your dog, even if the lameness resolves on its own. If a leg suddenly stops bearing weight, or there is clear pain, an urgent appointment is advisable.
How is it diagnosed?
A vet examines the knee by hand to feel how easily the kneecap moves out of the groove and how readily it returns; based on this, the grade (I through IV) is determined. X-rays may be used to assess leg conformation and rule out other joint problems. This page cannot tell you whether your dog has patellar luxation or at what grade; only a vet can determine that after a physical examination.
Treatment in outline
The approach depends on the grade, the dog's age, and the extent of symptoms, and is determined by the vet. In mild, rarely bothersome cases, often grade I, weight control and adjusted exercise may be sufficient. In cases of recurring lameness or higher grades, surgical correction is often considered, which may involve deepening the groove or repositioning the tendon attachment. There is no single treatment that gives the same result for every dog or every grade; the plan is always tailored to the individual dog.
What you can do yourself
Alongside the treatment prescribed by the vet, you can contribute to comfort at home: keep your dog at a healthy, lean weight, avoid repeated jumping off, for example, the sofa or bed, ensure good grip on slippery floors, and provide a soft, well-supporting resting place. This does not replace medical treatment, but can contribute to your dog's daily comfort.
Prevention and responsible breeding
In breeds with an increased risk, responsible breeders have breeding animals examined for knee problems by a vet before breeding. As a buyer, ask for these results. It also helps to prevent puppies of susceptible breeds from growing too fast, and to limit repeated jumping on and off furniture during the growth phase.
Living with patellar luxation
Many dogs with a mild form of patellar luxation can lead an active and comfortable life for years, especially with weight control and an adapted environment. At higher grades or with persistent symptoms, regular check-ups with the vet help to adjust in time and limit further joint damage.
Supportive products
An orthopedic dog bed can reduce pressure on the joints during rest and so contribute practically to your dog's comfort, but it does not treat the condition itself. Examples include the Trixie Vital Hondenmand Bendson Orthopedisch and the Bia Bed Hondenmand Orthopedisch. Choose a size in which your dog can lie fully stretched out.
Frequently asked questions
Is patellar luxation painful for my dog?
At mild grades a dog often shows little discomfort; at higher grades or with persistent irritation of the joint, pain and discomfort can occur.
Will a puppy grow out of it?
No, patellar luxation does not go away on its own. The severity can, however, remain stable without clearly worsening, depending on the grade.
Is surgery always needed?
No, mild cases are often managed non-surgically. The vet decides based on the grade and symptoms what is appropriate for your dog.
Does patellar luxation only occur in small dogs?
No, it occurs most often in small breeds, but is also reported in larger breeds, particularly in a less common form.
Conclusion
Patellar luxation is a common, largely hereditary joint condition in which the kneecap can slip out of its groove, with a skipping gait as the most noticeable sign. Severity ranges from barely noticeable to persistently troublesome, and the right approach depends heavily on the individual dog. Recognizing early signs and consulting a vet in time helps keep symptoms manageable.
Finally
Finally: this article does not replace a visit to the veterinarian. Fidello does not provide diagnoses or prescribe treatments. If in doubt, or in case of persistent complaints or acute signs, a veterinarian is always the right next step.