Post-approval Study of the DURALOC® Option Ceramic-on-Ceramic Hip Prosthesis System

Inclusion Criteria: * Skeletally mature * Provide informed consent * Sufficient acetabular and femoral bone stock to seat the prosthesis * Willing and able to return for follow-up as specified by the study protocol * Willing and able to complete the hip outcomes questionnaire and quality of life survey (SF12) * Undergo hip replacement due to non-inflammatory joint disease, including osteoarthritis, avascular necrosis, congenital hip dysplasia or post-traumatic arthritis. Exclusion Criteria: * Diagnosis of inflammatory arthritides such as rheumatoid arthritis, juvenile rheumatoid arthritis, psoriatic arthritis, systemic lupus, erythematosis etc. * Active infections that may spread to other systems such as osteomyelitis, pyogenic infection of the hip joint overt infection, etc. * Loss of musculature, neuromuscular compromise or vascular deficiency in the affected limb which impedes evaluation. * Poor bone quality (e.g. osteoporosis) such that there is concern about the ability of inadequate bone stock to support the implant. * Morbid obesity * Involvement in high levels of activity or participation in active sports * Involvement in heavy manual labor employment * Increased likelihood of falls due to concomitant illnesses or impairment * Pregnancy, breast-feeding, a prisoner, mentally incompetent, a known alcohol or drug abuser * Diagnosis of metabolic disorders or receiving systemic pharmacological treatments leading to progressive deterioration of solid bone support for the implant * Known history of conditions that may interfere with the total hip arthroplasty survival or outcome (e.g. Paget's disease, Charcot's disease) * Known presence of active metastatic or neoplastic disease * Known allergic reactions to implant materials (e.g. ceramic, metal) * Known history of tissue reactions to implant corrosion or implant wear debris * Disabilities of other joints that impedes evaluation (e.g. knees, ankles) * Known presence of highly communicable disease or diseases that may limit follow-up (e.g. immunocompromised conditions, hepatitis, active tuberculosis etc.) * Previous prosthetic hip replacement device (any type including THA, surface replacement arthroplasty, endoprosthesis etc.)