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Ruptured Anterior Cruciate Ligament (ACL)

Image of dog jumping and catching a frisbee at the park.

The rupture of the cruciate ligament is the most common knee injury in the dog.

This injury has two common presentations. One is the young athletic dog playing roughly who acutely ruptures the ligament and is non-weight bearing on the affected hind leg. The second presentation is the older, overweight dog with weakened or partially torn ligaments that rupture with a slight misstep. In this patient the lameness may be acute or there may be more subtle chronic lameness related to prolonged joint instability.

Your veterinarian will perform an orthopedic exam and take radiographs (x-rays) in order to diagnose this injury. The orthopedic exam involves an analysis of the gait, examination of the joint for swelling and/or pain and the presence of "drawer movement" (the presence of forward instability of the knee joint). Sedation is often required to do an adequate evaluation of the knee, especially in large dogs. Sedation prevents the pet from tensing the muscles and temporarily stabilizing the joint and preventing the demonstration of the drawer sign. Radiographs confirm inflammatory changes in the joint and establish the level of osteoarthritic changes present.

Surgical repair is recommended in most cases to stabilize the joint and prevent further osteoarthritic changes secondary to the joint instability. There are three primary types of surgical repair: intracapsular, extracapsular, and tibial plateau leveling osteotomy (TPLO). The type of surgical repair will be determined by the size, age and activity level of the pet as well as the degree of osteoarthritis already present in the joint. The recovery time and recommendation for physical therapy will depend on the type of surgical repair performed.

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Monday:

8:00 am-4:00 pm

Tuesday:

10:00 am-6:00 pm

Wednesday:

2:00 pm-9:00 pm

Thursday:

10:00 am-6:00 pm

Friday:

8:00 am-4:00 pm

Saturday:

9:00 am-2:00 pm

Sunday:

Closed

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  • "We have taken our furry friends to Dr. Nicoletti for a very long time. He is wonderful! Everyone there is great! Thanks for getting our newest furry in and taken care of. She came to us damaged and they helped us help her."
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  • "Attila and Daisy say all 8 paws up for Dr Nicolleti, Anna and staff!!!"
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    I would like for them to give their birds names.. How about Bonnie and Clyde, or Frick and Frack..."
    Bert J Dinsio
  • "Dr. Nicoletti and the St. Kitts Veterinary Clinic staff are great people, kind and compassionate friends who love our pets as much as we do. Our cats -- and your pets -- will be in good hands if you need to visit St. Kitts."
    Robbie Lewis
  • "Dr. Nicoletti and the St. Kitts Veterinary Clinic staff are great people, kind and compassionate friends who love our pets as much as we do. Our cats -- and your pets -- will be in good hands if you need to visit St. Kitts."
    Robbie Lewis
  • "Dr. Nicolette was my vet for years. I trust him completely. He really cares about the animals under his care. My husband took our one dog to another vet once. That vet ran unnecessary test and ran the bill up double of what Dr. Nicolette charged me to treat the problem. We moved to Florida 3yrs ago and I still haven't found a vet I trust as much as Dr. Nicolette."
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