Understanding Luxating Patella Surgery

If you are a dog owner, you should know that your pet may suffer from a luxating patella. Orthopedic surgery for dogs is recommended by our vet as one of the most effective ways of correcting a luxating patella. In particular, this dog knee surgery is critical if your pet experiences recurrent or persistent lameness. Fortunately, at Wisconsin Veterinary Orthopedics in Holmen, WI, we can help manage this condition by offering luxating patella surgery.

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What Is Luxating Patella Surgery?

It is a dog knee surgery that our veterinarians perform to correct the popping or luxation of the kneecap. A luxating patella is caused by congenital malformation that establishes abnormal pressure on the kneecap, making it move out of the groove where it normally lies.

Grading System for Patellar Luxation

Patellar luxation is graded based on the kneecap’s mobility in the groove found at the femur base.

Grade 1– luxating knee cap with manual pressure but returns to its position on its own.

Grade 2– When the knee cap luxates occasionally and is associated with skipping lameness, it can be manipulated into the correct position.

Grade 3– When the knee cap has been luxated permanently. Although it can be manually manipulated, it will pop out again.

Grade 4– Refers to when the knee cap has been luxated permanently and cannot be replaced manually.

Tibial Tuberosity Transposition

Our animal doctor uses tibial tuberosity transposition surgery to realign the tendon insertion between the shinbone and the kneecap. In most cases, the bones tend to heal better than tendons. Therefore, our veterinarian will cut the bone attached to the tendon and move it into a better position. Our animal doctor will secure the shin with a wire, and the bone will heal between 4 to 8 weeks.


We also provide RidgeStop, which is a surgical implant of a synthetic ridge that’s held in place with standard cortical screws. This is done to build up the sides of the patella groove where it is insufficient or eroded due to degenerative conditions. We apply this special implant where the knee cap is luxating, creating a barrier to luxation. This procedure does not involve cutting or shaving any bones, leading to no risks of fractures.

Contact Our Animal Hospital for Dog Knee Surgery in Holmen

There are numerous factors to consider when contemplating orthopedic surgery for dogs. At Wisconsin Veterinary Orthopedics in Holmen, WI, we assure you that our team will provide your dog with the treatment they need and deserve for a full recovery. You can call us today on (608) 526-2200 to schedule a consultation or inquire for more information regarding dog knee surgery. Contact us to learn more about how our veterinary professionals can help.