Hip Dysplasia-FHD

This photo is brought to you by @KosmikcatteryLLC™ *This is a clean X-Ray taken of Storm (Wiola) left side.*

Much more information regarding STORM (Wiola) can be found under "Retired Kings & Queens"

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Causes of Hip Dysplasia

Hip dysplasia is believed to be a hereditary disease in cats, but a couple of factors can be linked to the development of the condition.

  • Obesity can contribute to the development of hip dysplasia, as excess weight increases the amount of pressure put on a cat's hips, which can eventually lead to joint distress.

  • Breed type can affect the likelihood of hip dysplasia in a cat. Large purebred cats like the Maine Coon and Himalayan are more likely to develop hip dysplasia than domestic (mixed breed cats). However, some vets believe that many mild to moderate cases go undiagnosed in domestic cats because of their natural ability to mask and adapt to illness.


Symptoms of Hip Dysplasia in Cats

  • Lameness or limping that gets gradually worse

  • Trouble jumping

  • Exercise intolerance

  • Lethargy and/or irritability

  • Stiffness and decreased range of motion in on or both rear limbs

  • Muscle loss in rear limbs


Treatment options

  • Your vet will diagnose your cat's hip dysplasia through a physical examination and x-rays. Treatment considerations are made based on the severity of the x-ray results and your cat's symptoms.

  • Hip dysplasia in cats is typically first treated conservatively. This treatment generally includes medications to manage pain and inflammation and possible changes in activity levels. If the conservative approach is not enough, your vet will talk to you about surgical treatment for your cat.

  • The most common surgery is called a femoral head and neck excision. During this surgery, the vet removes the deformed head and neck of the femur. In time, your cat's muscles rebuild and form a new, false joint. After recovery, most cats will live a happy, normal life.

  • In rare cases, your vet may consider a total hip replacement. This surgery involves the replacement of the hip joint with a special synthetic hip called a micro-THR.

Examples of hip radiographs (right coxofemoral joint) taken from the PawPeds database showing examples of the range of possible hip score grades in the programme: (top left) hip score = 0 (HS0) normal hip with no evidence of FHD; (top right) hip score = 1 (HS1) hip with acetabulum covering < 50% of the femoral head; (bottom left) hip score = 2 (HS2) moderate radiographic signs associated with FHD including shallow acetabulum and deformation of the femoral head with some evidence of new bone formation around the joint; (bottom right) hip score = 3 (HS3) severe radiographic signs associated with FHD with very poor joint congruency, deformation of the femoral head and major changes associated with new bone formation around the joint.

Current knowledge about feline hip dysplasia (FHD) comes largely from individual case reports within the veterinary literature compiled from studies of old and new. Please note this information can be biased depending on the timing of the published article and the timing of new findings and advancements in medical fields. Any articles that come from a strange standing of intent will be disregarded. Please note a lot of people still do not communicate or share their felines findings with others such as Pawpeds or likewise.