Inclusion Criteria:  20 years old at least. Osteoarthritis (OA) Avascular necrosis Rheumatoid arthritis (RA) Previous failure of hemiarthroplasty Femoral head or neck or trochanteric fractures Developmental dysplasia of the hip  Exclusion Criteria:  Being unable or unwilling to participate in Subjects having cognitive impairment cannot fill out survey Other complication causing severe deficiency in function and motion