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A  torn ACL, also known as a cranial cruciate ligament rupture, is the most common stifle or knee injury in dogs. It can also happen in cats. Until proven otherwise, sudden lameness of the hind limb tends to be a ruptured cruciate.  There are partial tears which can be treated conservatively without surgery but a fully torn ACL NEEDS surgery. The most common signs of a torn or ruptured ACL are: sudden pain of the hind limb, swelling of the knee, instability of the knee, or hind limb weakness.  Sometimes pet parents see an injury take place but sometimes the pet just turns up lame.  Early treatment and not waiting to see if it gets better is the best course of action.  At Harmony Veterinary Hospital, we treat both partial and full ACL tears. 

check out the video below


Bichon Frise Mix
11 years old




Moxie was brought into our pet hospital earlier this year because she was essentially walking on three legs instead of four. The pet owners were worried because she would toe touch but did not want to put pressure on the leg. In moments of excitement or high adrenaline, she would walk and run on all fours, but when she was calm or in a relaxed state she would hold the leg up and close to her body. Tests were run to rule out Valley Fever and specific tick borne diseases which can cause these symptoms. Radiographs were the final step in diagnosis.


Moxie had a cranial cruciate ligament tear. Surgery was the only option for a full recovery.

Check out the video below to see Moxie post surgery and recovery! She is able to walk normal on both hind legs with no limping or holding her leg up. Go Moxie!!

Our Hours

Contact Info

Monday//Tuesday//Wednesday//Thursday//Friday 8:00 a.m. - 6:00 p.m.
Saturday//Sunday CLOSED


Labor Day - CLOSED

Thanksgiving November 28 and 29 - CLOSED

December 23 to January 2 - CLOSED

1745 W Glendale Ave
Phoenix, AZ 85021

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