I am so sorry to hear the dx, but thankfully you now have an answer and can decide on treatment. Our little Panda who is only 2 also has hip dysplasia...his is mild enough that right now no surgery is recommended. But my past Sheltie, Rory, had to have surgery on both hips. If the hip socket is too damaged for a successful hip replacement the surgeon may recommend doing a femoral head osteotomy (FHO). This removes the ball of the hip so there is no bone on bone...the dog's body then builds a muscle sling that does the work that the hip joint had done. The possible advantage to this surgery is that unlike a hip replacement that can wear out over time, the FHO is the only surgery he would ever need on that hip and there is no possibility of arthritis forming in the hip later in his life. Talk over all the options and I am sure the surgeon will recommend what he feels is best for Scout. Either way once surgery is done and he has healed he will be fine. Are both hips involved or just one?
Trini