By providing an elastic form stable material which is capable of being delivered directly to a specific desired location within a living creature and provides increased strength and rigidity to the injected location, disorders of the trabecular bone or subchondral tissue of a living creature are able to be effectively treated. Treatment of necrosis of the bone beneath the cartilage in skeletal joints and other defects in bony or cartilaginous structures is achieved with a variation of the subject material specific to each application. In the preferred method, the elastic form stable material is injected directly into the affected area, thereby achieving the desired result.