Insignia™ Hip Stem Outcomes Study

Inclusion Criteria: * The subject has signed an Institutional Review Board (IRB)-approved, study specific Informed Consent Form (ICF). * The subject is skeletally mature * The subject has a diagnosis as listed in the instructions for use (IFU), which include non inflammatory degenerative joint disease (including osteoarthritis or avascular necrosis), rheumatoid arthritis or post-traumatic arthritis, correction of functional deformity, treatment of nonunion, femoral neck and trochanteric fractures. * The subject is a candidate for a primary or revision cementless THA. * The subject is willing and able to comply with postoperative scheduled clinical evaluations. Exclusion Criteria: * The subject is pregnant or breastfeeding * The subject has an active or suspected latent infection in or about the affected hip joint at the time of study device implantation. * The subject has any mental or neuromuscular disorder which would create an unacceptable risk of prosthesis instability, prosthesis fixation failure, or complications in postoperative care. * The subject has bone stock compromised by disease, infection or prior implantation which cannot provide adequate support and/or fixation to the prosthesis. * The subject is immunologically suppressed or receiving steroids in excess of normal physiological requirements (e.g. \> 30 days). * The subject has a known sensitivity to device materials. * The subject is involved in any ongoing legal matter, investigation, or dispute pertainin…