Avenir Complete Post-Market Clinical Follow-Up Study

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; Exclusion Criteria: * 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; Exclusion criteria * Acute, chron…