Patellaluxation beim Hund verstehen: Symptome, Behandlung & Alltagshilfe

Understanding Patellar Luxation in Dogs: Symptoms, Treatment & Everyday Care

Recognize Symptoms, Understand Causes, and Act Correctly

Table of Contents

What is Patellar Luxation in Dogs?

Patellar luxation in dogs occurs when the kneecap (patella) dislocates from its natural groove in the femur. This leads to pain, movement disorders, and often long-term arthritis. Small breeds such as Chihuahuas, Pomeranians, or Miniature Poodles are particularly affected, but larger dogs can also develop luxation.

The patella is a central component of the extensor mechanism in the hind limb. When it slips out of place, your dog loses stability – a condition that, if left untreated, can cause permanent damage. Some dogs get used to it, but in the long term, this often leads to improper loading of other joints.

Severity Grades and Classification

The severity grades of patellar luxation in dogs are divided into four classes:

  • Grade I: Kneecap rarely dislocates, but spontaneously returns to place
  • Grade II: Luxation in the dog occurs regularly, reduction is usually actively possible
  • Grade III: Kneecap is permanently luxated but can be manually repositioned
  • Grade IV: Patella in the dog is permanently displaced and irreducible

The higher the grade, the greater the risk of permanent mobility restrictions and pain. Assessment by an experienced veterinarian is essential to prevent long-term damage.

Dog with patellar luxation

Causes and Risk Factors

The most common causes of kneecap luxation in dogs are:

  • Congenital malformations of the knee joint
  • Shortened thigh muscles
  • Deformities of the hind limbs (bow-legs or knock-knees)
  • Overweight in dogs – puts additional strain on the joints
  • Accidents or trauma (e.g., falls, jumps)

In breeding, targeted screening is important to exclude genetically predisposed animals. Responsible selection of parent animals can minimize many orthopedic problems in advance.

Interpreting Symptoms Correctly

The signs of patellar luxation in dogs may be subtle at first:

  • Sudden hopping on three legs, then continuing to walk normally
  • Dog licking a hind leg
  • Clicking sounds in the knee joint
  • Lameness in the dog after lying down
  • Avoidance of stairs or jumps

In advanced cases, your dog may be permanently lame or reluctant to move. A crooked gait or frequent slipping on smooth floors are also possible indicators.

Diagnosis at the Vet

Diagnosis is made through a clinical examination in which the veterinarian palpates the kneecap. X-rays or CT scans help to identify concomitant changes such as joint inflammation in dogs. Classification into severity grades is crucial for choosing the treatment.

In some cases, sedation may be necessary to allow for an accurate assessment. Especially in young dogs, early clarification is worthwhile – this way, targeted countermeasures can be taken.

Treatment Options

The treatment of patellar luxation in dogs depends on the severity:

  • Grade I–II: conservative measures such as physiotherapy, targeted muscle training, joint supplements
  • Grade III–IV: surgical intervention for stabilization (e.g., sulcus deepening, tendon transposition)

An experienced orthopedist can choose the appropriate surgical method. Post-operatively, strict rest, controlled movement, and targeted muscle building are crucial for the healing process.

Daily Life with a Dog with Patellar Luxation

Even with patellar luxation, your dog can lead an active life – with the right adjustments:

  • Avoid slippery floors – carpets provide more grip
  • Help him get into the car or onto the sofa/bed
  • Joint-friendly exercise such as swimming or targeted muscle training
  • Avoid overweight – any additional strain harms the joints

Regular check-ups with the veterinarian, coupled with adapted exercise and nutrition, can significantly improve quality of life. Alternative methods such as acupuncture or underwater treadmill are also successfully used.

Dog X-ray

Nutrition and Supporting Products

A balanced diet with special nutrients can positively influence joint health in dogs:

  • Glucosamine and Chondroitin – for stable cartilage
  • Collagen and Hyaluronic Acid – support elasticity
  • Omega-3 fatty acids – anti-inflammatory
  • Green-lipped mussel – natural cartilage protection

BonePower from BugBell combines exactly these ingredients in a grain-free, well-tolerated food – ideal for dogs with patellar luxation, arthritis, or other joint problems.

Especially with chronic complaints, nutrition should be an integral part of the therapy. This can often even reduce or, in the long term, avoid medication.

Discover BonePower now

More on the topic:
Lethargy in dogs – when energy is lacking

Note: This article does not replace veterinary advice. Our products can provide nutritional support but are not veterinary medicinal products. If your dog has health problems, please always consult a veterinarian.

Portrait of Jamina Zaugg

Reviewed and approved by

Jamina Zaugg, M.Sc.

Food Scientist at BugBell

Jamina is a food scientist specializing in functional pet food formulations, alternative protein sources, and digestible feeding. At BugBell, she is responsible for product development, formulation validation, and transparent, open declaration of all ingredients.

Degree: M.Sc. Food Science (Osnabrück University of Applied Sciences)

Expertise: Nutritional physiology, alternative proteins, formulation and labeling law (EU)

Conflicts of interest: works for BugBell (product-related content may mention own products)