My dog has avascular necrosis. Is it Legg-Calvé-Perthes disease?

Question

He was diagnosed with avascualar necrosis. Is that the same as Legg-Calvé-Perthes disease? What is it and how will it affect him? Is there any treatment besides surgery? Been giving him glucosamine, hip supplements & taking him swimming but idk if it’s worth it anymore. Doc didn’t have time to go in depth with me. Mom said AC makes his bones & joints hurt more. 1st pic is 5 weeks ago. 2nd is now. Do they look worse? Pet's info: Dog | Mixed Breed | Male | neutered | 2 years and 4 months old | 20.08 lbs

Dr. B. DVM, DACVIM (Oncology) · Accepted Answer

You are correct those names are used for the same condition. It is typically more common in young, small breed dogs, especially Terrier breeds, but can also occur after trauma. I am assuming your kid has some lameness of the affected limb which is what prompted the vet visits and the xrays. Unfortunately I cannot provide additional comment on the x-rays because it is not legal for us as pet coach experts to diagnose without having examined the pet. But, I hope to provide some information that will be helpful. If the x-rays have not been evaluated by a radiologist this could be very helpful in determining the need for surgery. If this is Legg calve Perthes, in patients that don't respond to medical management within 4 weeks, surgery is typically recommended. For small dogs this typically means removing the head of the upper leg bone (femur, an FHO). For large dogs sometimes a total hip replacement is required. I have attached a link that hopefully will help to explain a little bit about this disease. This is not something your environment caused so it is safe for Boo to stay in AC. I also think the other supportive care that you are providing at home is still a great idea for overall joint health and his other joints. I hope this helps and thank you for using Petcoach! https://www.petcoach.co/article/legg-calve-perthes-disease-in-dogs-avascular-necrosis-of-th/

My dog has avascular necrosis. Is it Legg-Calvé-Perthes disease?

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