Mpact 3D Metal Cup PMS

Inclusion Criteria: * Those suffering from hip primary arthrosis, post-traumatic arthrosis, hip dysplasia or avascular necrosis of femoral head, rheumatic arthrosis * Those aged between 18 and 75 years old at the surgery time * those suitable to undergo to a primary total hip arthroplasty for whom the Mpact 3D Metal cup will be implanted (according to the label indication/contraindications) * Patients who are willing and able to provide written informed consent for participation in the study. Written informed consent must be obtained prior to patient's surgery Exclusion Criteria: * Those with acute or chronic infection * Those whose mental conditions may compromise their ability to provide informed consent to study participation, ability to complete questionnaires or complete 10-year follow-ups. * Those suffered by severe deformation, at the discretion of surgeon * Those suffered by osteoporosis * Those with metabolic disorders that may involve bone metabolism for which cementless implants are contraindicated * Those suffered by muscular atrophy or neuromuscular disease * Those allergic to medical device material previewed for the surgery * Those unable to give their consent to participate in the study or who do not want to participate * Those whose functional recovery is compromised by