REDAPT Revision System Study to Assess 5 Year Revision Rate & up to 10 Year Revision Rate and Safety and Effectiveness

Inclusion Criteria: * Subject requires revision hip arthroplasty * Subject requires subsequent revision of a joint replacement that involves the insertion, removal and/or replacement of a prosthesis or implant * Subjects with inflammatory degenerative joint disease including rheumatoid arthritis, arthritis secondary to a variety of diseases and anomalies, and congenital dysplasia; non-inflammatory degenerative joint disease (NIDJD) or any of its composite diagnoses of osteoarthritis, avascular necrosis, traumatic arthritis, slipped capital epiphysis, fused hip, fracture of the pelvis, and diastrophic variant * Treatments of nonunion, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques * Endoprosthesis, femoral osteotomy, or Girdlestone resection * Subject is at least 18 years of age * Subject is skeletally mature in Investigators judgment * Subject is willing to consent to participate in the study * Subject is in stable health and is free of or treated and stabilized for cardiac, pulmonary, hematological, infection, or other conditions that would pose excessive operative risk Exclusion Criteria: * Known allergies to any components of the devices * Subject is entered in another investigational drug, biologic, or device study within 30 days of active study participation * Subject is known to be at risk for lost to follow-up, or failure to return for scheduled visits * Subject is facing current or impending incarceration * Female subject is of child-bearing age and not using an approved method of contraception * Mental or neurological conditions which could impair the subject's ability or willingness to comply with the study * Physical conditions or activities which tend to place extreme loads on implants, e.g., Charcot joints, muscle deficiencies, multiple joint disabilities, etc. * Skeletal immaturity * Subject is severely overweight (BMI \> 40)