Animal Care Center of Castle Pines

Medial Patellar Luxation

Medial Patellar Luxation (MPL) – Medial Patellar Luxation is a common finding in young small-breed dogs but can also be found in large-breed dogs.

Even though your pet may have MPL it may or may not require surgery.

We recommend correction of MPL in patients that are experiencing pain and lameness secondary to the luxation. You may notice that your dog skips on the affected leg or holds it up when running or walking.

They may also stretch the leg backward in order to replace the patella back in its normal location.

There are four procedures that are most often required to correct the luxation.

The normal groove that contains the patella often has to be deepened (trochleoplasty) to keep the patella in the proper location.

The attachment of the patellar tendon (tibial tuberosity) must be realigned with the remainder of the limb by cutting the bone and moving the tuberosity to a more normal location.

When the patellar luxation occurs toward the medial (inward) of the knee this tissue must be released (retinacular release) to allow the patella to return to its normal location and the tissue on the lateral (outward) side of the knee must be tightened (fascial imbrication) to keep the patella in place.

The recovery period after surgery depends on what procedures must be done to correct the MPL. In general, the recovery time is approximately 6 weeks after surgery.

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