There are salvage procedures, including one called a shelf and Chiari osteotomy, which use non-articular cartilage to help hold the hip in place.
The added cartilage in these procedures is called fibrocartilage, which is not true articular cartilage.
In severe cases of dysplasia, poor blood supply leads to bone death or arthritis. This kind of dysplasia is called avascular necrosis (AVN).
In AVN cases, or in cases where the hip socket is small or misshapen, a shelf and Chiari osteotomy may be the only alternative.
Another salvage option is called an athrodesis, or fusion, which eliminates hip motion. This procedure tends to be used mostly in active, young patients, who have poor cartilage.