Luxating Patella

luxating patella

Luxating patella is a condition where the kneecap (patella) moves out of its normal position. Luxating patella is one of the most common knee joint abnormalities of dogs, but it is only occasionally seen in cats. It may affect one or both of the knees. In some cases it moves (luxates) towards the inside of the knee, and in other cases it luxates towards the outside of the knee. Luxation to the inside of the knee is the most common form seen; it is most commonly seen in the small or miniature breeds of dogs such as Poodles, Maltese, Yorkies, and Chihuahuas. Luxations towards the outside of the knee are seen less frequently. It can be present in many breeds, but is seen especially in Newfoundlands.

There are four grades of patellar luxation:

  • Grade I- the kneecap can be manually luxated but the kneecap returns to its normal position when the pressure is released.
  • Grade II- the kneecap can spontaneously luxate out of position with just normal movement of the knee.
  • Grade III- the kneecap remains luxated most of the time but can be manually reduced into the normal position.
  • Grade IV- the patella is permanently luxated and can not be manually repositioned

Dogs frequently start with a Grade I or Grade II and worsen over time to a Grade III or IV. Many people are not aware their pet is affected, but a luxating patella can cause pain. Owners may see the pet limp on a rear leg, or they may see them shake a rear leg to try to snap the kneecap back into place.

A serious consequence of patellar luxation is that it predisposes the dog to a rupture of a ligament inside the knee called the anterior cruciate ligament (ACL). ACL ruptures are very painful, at least initially, and usually the dog doesn't bear weight on the affected leg. Surgery is indicated for any case that is causing lameness or pain. Owners may also elect corrective surgery as a way to prevent an ACL.

Location

Find us on the map

Office Hours

Our Regular Schedule

Monday:

7:30 am-6:00 pm

Tuesday:

7:30 am-7:00 pm

Wednesday:

7:30 am-6:00 pm

Thursday:

7:30 am-7:00 pm

Friday:

7:30 am-6:00 pm

Saturday:

8:00 am-2:00 pm

Sunday:

Closed

Testimonials

Read What Our Clients Say

  • "Dr. Diamond,

    Your compassion and kindness to our "Star" was greatly appreciated."
    Sincerely, Rose Kush
  • "Dr. Diamond,

    I know that I always tell you how wonderful you are to "Nala" and I. But just by the amount of patients you have tells me that other clients feel the same way! You never make us feel like you are rushed. You make sure that we know you care for each and every pet. I have raised many dogs and went to many vets in my lifetime. But never had such a wonderful vet as you. It is very hard to compare any vet to you, because you my friend, are in a class of your own! God bless you, Dr. Diamond. Thank you soooo much for caring about us."
    Sincerely, Michelle & "Nala"
  • "Dear Dr. Diamond and all of your wonderful pet angels,

    I was touched to receive your beautiful card and you all wrote messages! That is incredibly special.As you all are. I am so grateful for your loving expertise with caring for all our dogs, but especially Spike. He lived longer and better thanks to your care. May 28th was a shockingly sad day but I just kept focusing then and now on your kindness and gentleness."
    Rosemari and all the family
  • "Dr Diamond,

    Glen and I are so thankful to you and your wonderful staff for taking such good care of our sweet lil' Brin. Your kindness and gentle treatment of her while she was feeling poorly and trying so hard to recover means more to us than you could imagine. Thank you so much.

    Thank you, your thoughtfulness is appreciated,"
    The Cotten Family