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Other conditions, such as rheumatoid arthritis (a chronic inflammatory disease that causes joint pain, stiffness, and swelling), avascular necrosis (loss of bone caused by insufficient blood supply), injury, and bone tumors also may lead to breakdown of the hip joint and the need for hip replacement surgery.
1 Hip fractures â can cause sudden hip pain. These injuries can be serious and lead to major problems. Hip fractures are more common as people get older because falls are more likely and your bones become weaker. 2  Infection in the bones or joints.  Osteonecrosis of the hip (necrosis from loss of blood supply to the bone)