Avenir Complete Post-Market Clinical Follow-Up Study

Eligibility Criteria

• * Patient is at least 20 years old or older and skeletally mature.
• * Advanced wear of the joint due to degenerative, post-traumatic or rheumatic diseases;
• * Failed previous hip surgery including
• * Joint reconstruction (osteotomy)
• * Arthrodesis
• * Hemi-arthroplasty or total hip replacement (THR)
• * Acute traumatic fracture of the femoral head or neck;
• * Avascular necrosis of the femoral head.
• * Patients capable of understanding the surgeon's explanations and following his instructions, able and willing to participate in the follow-up program and who gave consent to take part in the study;
• * Acute, chronic, local, or systemic infections;
• * Severe muscular, neural, or vascular diseases that endanger the limbs involved;
• * Lack of bony structures proximal or distal to the joint, so that good Inclusion criteria
• * Patient is at least 20 years old or older and skeletally mature.
• * Advanced wear of the joint due to degenerative, post-traumatic or rheumatic diseases;
• * Failed previous hip surgery including
• * Joint reconstruction (osteotomy)
• * Arthrodesis
• * Hemi-arthroplasty or total hip replacement (THR)
• * Acute traumatic fracture of the femoral head or neck;
• * Avascular necrosis of the femoral head.
• * Patients capable of understanding the surgeon's explanations and following his instructions, able and willing to participate in the follow-up program and who gave consent to take part in the study;
• * Acute, chronic, local, or systemic infections;
• * Severe muscular, neural, or vascular diseases that endanger the limbs involved;
• * Lack of bony structures proximal or distal to the joint, so that good anchorage of the implant is unlikely or impossible;
• * Total or partial absence of the muscular or ligamentous apparatus;
• * Any concomitant diseases that can jeopardize the functioning and the success of the implant;
• * Allergy to the implanted material, especially to metal (e.g. cobalt, chromium, nickel, etc.);
• * Local bone tumors and/or cysts;
• * Pregnancy;
• * Skeletal immaturity.
• * Patients unwilling or unable to give consent, or to comply with the follow-up program;
• * Patients who have any condition that would - in the judgement of the Investigator - place him/her at undue risk or
• * interfere with the study;
• * Any vulnerable subject:
• * a prisoner
• * mentally incompetent or unable to understand what participation in the study entails
• * a known alcohol or drug abuser
• * anticipated to be non-compliant
• * Patients with plans to relocate during the study follow-up period;
• * Individuals whose willingness to volunteer in a clinical investigation could be unduly influenced by the expectation, whether justified or not, of benefits associated with participation or of retaliatory response from senior members of a hierarchy in case of refusal to participate;