Periprosthetic Bone Mineral Density After Total Hip Arthroplasty Performed Through a Minimally Invasive Anterior Approach (AMIS) With Either an AMIStem or a Quadra Femoral Component

Inclusion Criteria: * Patients who are willing and able to provide written informed consent for participation in the study. Written informed consent must be obtained prior to the patient's surgery. * Patients presenting with disease that meets the indications for use for Medacta implants defined by this study (on-label use (enclosure 2)). * Patients must be willing to comply with the pre and post-operative evaluation schedule. * Patients with only one lower limb arthroplasty Exclusion Criteria: * Patient with metabolic bone diseases, use of steroids or other drugs affecting bone metabolism * Patients with osteoporosis (pre-op T-score \< -2,5) * Patients with significant comorbidities * Patients with both hip and knee arthroplasty * Patients with restricted mobility * Patient with severe hip contracture * Those with one or more medical conditions identified as a contraindication defined by the labeling on any Medacta implants used in this study