Medicare spends an average of $16,500 to $33,000 per patient for the surgery, hospitalization, and recovery from hip and knee replacements, but depending on the provider and where the treatment takes place, the quality and cost of these surgeries can vary greatly.edicare spends an average of $16,500 to $33,000 per patient for the surgery, hospitalization, and recovery from hip and knee replacements, but depending on the provider and where the treatment takes place, the quality and cost of these surgeries can vary greatly.
Ledge means a piece of masonry or wood or stone that juts out into an open space. A mountain climber might use a ledge of rock to support his body from falling, for example.
Tweet. : a usually stone or concrete structure that supports a building from underneath. : something (such as an idea, a principle, or a fact) that provides support for something. : an organization that is created and supported with money that people give in order to do something that helps society.