The most common knee injury in the dog is rupture of the Cranial Cruciate Ligament (CCL),(simular to an ACL in a human). This injury can occur at any age and in any breed, but most frequently occurs in middle aged, overweight, medium to large breed dogs.
This ligament frequently can suffer a partial tear, leading to slight instability of the knee. If this damage goes untreated, it most commonly leads to complete rupture and possibly damage to the medial meniscus of the knee. The meniscus acts as a cushion in the knee. Complete rupture results in front-to-back instability, commonly called Tibial Thrust, and internal rotation of the lower leg, commonly called Pivot Shift. Untreated legs usually become very arthritic and painful from the instability.
What is Tibial Tuberosity Advancement(TTA) Surgery?
The TTA procedure involves making a cut in the front part of the tibia bone (tibial tuberosity) and advancing this portion of bone forward in order to engage the patellar ligament so that the abnormal sliding movement within the knee joint is eliminated.
A specialized plate and screws are used to secure the bone in place. Bone graft is collected from the top of the tibia and placed in the gap in the bone to stimulate healing.
What is Lateral Suture Repair?
The lateral suture repair method has been around in veterinary medicine since the 1960's.. It involves placing a strong piece of suture across the knee joint in a location similar to the torn ligament. This suture would stabilize the knee while your pet "heals" the knee with fibrous or scar tissue around it to stabilize the knee. Patients that do the best with this procedure are smaller dogs.
What is a Medial Patella Injury?
Patellar luxation occurs when the kneecap slips out of place. It can be a congenital or developmental condition, or it can occur from trauma. Pets with patellar luxations may exihibit varying degrees of lameness, and if left untreated, the condition can lead to arthritis and other orthopedic problems. Mildly affected dogs are often prescribed joint supplements and pain-relieving medications. More serious cases require surgery to remedy the condition.