UPDATE - WE HAVE COMPLETED OUR ENROLLMENT FOR DOGS THAT HAVE HAD A TPLO SURGERY BUT ARE STILL ENROLLING DOGS THAT HAVE HAD A TTA OR ECR PROCEDURE.
The cranial cruciate ligament is located in the knee joint and its rupture is common cause of hind limb lameness and arthritis in dogs. If left untreated the result can lead to chronic pain and disability. Three methods used for surgical repair of the injured ligament are extracapsular repair (ECR), tibial plateau leveling osteotomy (TPLO) and the tibial tuberosity advancement (TTA.) Currently no studies have compared any of these procedures more than 12 months post-operatively. We aim to determine if there is a difference in the development of arthritis between the three different types of surgery in dogs after at least one year.
ELIGIBILITY: Dogs between 50-100 pounds who have had a TTA or ECR procedure in one or both knees a minimum of 12 months prior. Surgery must have been performed at the Cornell University Hospital for Animals. Dogs who have had cruciate surgery at another hospital or if they are experiencing hip or spinal arthritis are not eligible. Dogs with non-repaired cruciate injuries an ineligible as well.
COMPENSATION: The study pays the orthopedic examination, force-plate gait analysis, sedation and CT scan of the knees. This represents a cost savings of over $600.
OWNER RESPONSIBILITIES: If eligible following the examination and force-plate gait analysis patients are sedated and have a CT scan of the knees performed. Once completed the sedation will be reversed. Total time of the appointment is estimated at 3-4 hours and no follow-up is needed.