G7 Dual Mobility System Used in Total Hip Arthroplasty for the Treatment of Femoral Neck Fracture

Inclusion Criteria: * 55 to 80 years of age, inclusive * Skeletally mature * Have undergo treatment or in need of primary THA treatment of non-union, femoral neck fracture, unmanageable by other techniques * Have G7 Dual Mobility system implanted or decision to have a G7 Dual Mobility system implanted was made independently and prior to recruitment into study * Willing and able to complete scheduled follow-up evaluations as described in the study protocol * Has participated in the Informed Consent process and is willing and able to sign an IRB/EC approved informed consent Exclusion Criteria: * Is septic, has an active infection or has osteomyelitis at the affected joint * Has significant osteoporosis as defined by treating surgeon * Has metabolic disorder(s) which may impair bone formation * Has osteomalacia * Has distant foci of infections which may spread to the implant site * Has rapid joint destruction, marked bone loss or bone resorption on pre-operative radiographs * Has vascular insufficiency, muscular atrophy at the implant site or neuromuscular disease which might jeopardize the outcome of the surgery * Has any concomitant disease which is likely to jeopardize the functioning or success of the implant * Is known to be pregnant * Is a prisoner, known alcohol or drug abuser or mentally incompetent or unable to understand what participation in this study entails * Has a known sensitively or allergy to one or more of