PennHip and Hip Dysplasia





PennHip and Hip Dysplasia

The Langley Animal Hospital is happy to announce that we will be offering PennHIP for detection of hip dysplasia. PennHIP is the most accurate hip screening method. The word dysplasia stems from the Greek words dys, meaning “disordered” or “abnormal”, and plassein meaning “to form”. The expression hip dysplasia can be interpreted as the abnormal or faulty development of the hip. Abnormal development of the hip causes excessive wear of the joint cartilage during weight bearing, eventually leading to the development of arthritis, often called degenerative joint disease (DJD) or osteoarthritis (OA). The terms DJD, arthritis and osteoarthritis are used interchangeably.

Today, the general veterinary consensus is that hip dysplasia is a heritable disease manifested as hip joint laxity that leads to the development of OA. Canine Hip Dysplasia afflicts millions of dogs each year and can result in debilitating orthopedic disease of the hip. Many dogs will suffer from osteoarthritis, pain, and lameness, costing owners and breeders millions of dollars in veterinary care, shortened work longevity, and reduced performance. The occurrence of CHD is well documented in the large and giant breed dogs, but there is also evidence that CHD is prevalent in many small and toy breeds as well as in cats.

Hip Dysplasia is a disease of complex inheritance that is caused by many genes. Veterinarians and dog breeders have attempted to eliminate CHD through selective breeding strategies. However, the reduction of CHD frequency in pure-breed dogs has been disappointing.

X-ray: Extended view of the hips

Fast Facts About Canine Hip Dysplasia

  • Canine hip dysplasia (CHD) is the most commonly inherited orthopedic disease in dogs. CHD is a degenerative, developmental condition, leading to painful hip osteoarthritis, stiffness, and diminished quality of life.
  • All dog breeds are affected by the disease, in some breeds more than 50% of dogs are afflicted.
  • The disease is polygenic and multifactorial.
  • The development of CHD is affected by environmental factors such as weight and age.
  • There is no medical or surgical cure for CHD.
  • CHD is a major concern for working dogs, pet owners, breeders and veterinarians.
  • PennHIP is the most accurate hip screening method.

“The PennHIP method can be performed reliably performed on a dog as young as 16wks of age”

PennHIP – Making a Difference

PennHIP is the most accurate hip screening method available and can be safely performed on dogs as young as 16 weeks of age. An early estimate of a dog’s hip integrity is invaluable, whether the dog’s intended purpose is for breeding, for working, or as a family pet.

PennHip VS OFA

A new scientific paper has just been published in the Journal of the American Veterinary Medical Association entitled “Evaluation of the relationship between Orthopedic Foundation for Animals’“hip joint scores and PennHIP distraction index values in dogs” (pg 532-541). This study shows that dogs judged as “normal” by the OFA can have clinically important passive hip joint laxity as determined by the PennHIP method. The results suggest that OFA scoring can underestimate susceptibility to osteoarthritis in dogs, which may impede progress in reducing or eliminating hip dysplasia through breeding.

For Breeders

Information compiled in PennHIP’s international database permits informed selection of breeding stock based on hip tightness relative to other members of the same breed. Breeders can reduce the incidence and severity of Canine Hip Dysplasia (CHD) in future generations of dogs by applying selection pressure towards tighter hips. Among current hip screening methods, PennHIP has the highest heritability value to bring about these genetic changes.
Call Langley Animal Clinic today to see how we can assist you in fulfilling all your veterinary needs. 24 hour veterinarian services are always available, just pick up the phone and call (604) 534-4813