AVANTAGE® RELOAD Double Mobility Acetabular Cup -Clinical Study

Inclusion Criteria: * Selection of subjects for this evaluation should be in accordance with the indications of the AVANTAGE® RELOAD with E1™ or ArCom™ liner specifically * Primary osteoarthritis * Post-Traumatic arthritis * Inflammatory joint disease (e.g. Rheumatoid arthritis) * Femoral neck fracture * Femoral head necrosis * Sequelae from previous hip surgery, osteotomies, etc. * Congenital hip dysplasia Additional inclusion criteria include: * Male or female * 18 years of age or older * Subjects willing to return for follow-up evaluations * Subjects who read, understand study information and give written consent (specific local regulatory requirements) Exclusion Criteria: * Exclusion criteria should be in accordance with Contraindications for the AVANTAGE® RELOAD: Absolute contraindications include: * Infection * Sepsis * Severe muscular, neurological or vascular deficiencies of the extremity involved * Bone destruction or poor bone quality Additional contraindications include: * Subjects unable to co-operate with and complete the study * Dementia and inability to understand and follow instructions * Neurological conditions affecting movement * Patient over 18 under law supervision