G7 Freedom Constrained Vivacit-E Liners

Inclusion Criteria:

• Patient is 18 to 80 years of age, inclusive

• Patient is skeletally mature

• Patient qualifies for unilateral total hip arthroplasty based on physical exam andmedical history including at least one of the following:

• Non-inflammatory degenerative joint disease, including osteoarthritis andavascular necrosis

• Rheumatoid arthritis

• High risk for dislocation

• Undergoing revision hip arthroplasty

• Correction of functional deformity

• In need of treatment of non-union, femoral neck fracture, and trochantericfractures of the proximal femur with head involvement, unmanageable by othertechniques

• Patient is willing and able to complete scheduled follow-up evaluations as describedin the protocol and Informed Consent

• Patient, or the patient's legally authorized representative, has participated in theInformed Consent process and is willing and able to sign an IRB approved informedconsent

Exclusion Criteria:

• Patient is septic, has an active infection or has osteomyelitis at the affectedjoint

• Patient has significant osteoporosis as defined by treating surgeon

• Patient has metabolic disorder(s) which may impair bone formation

• Patient has osteomalacia

• Patient has distant foci of infections which may spread to the implant site

• Patient has rapid joint destruction, marked bone loss or bone resorption onpre-operative radiographs

• Patient underwent contralateral THA within 3 months of planned index procedure orhas a contralateral THA planned within 3 months of the index procedure

• Patient is undergoing simultaneous bilateral THA

• Patient has vascular insufficiency, muscular atrophy at the implant site orneuromuscular disease which might jeopardize the outcome of the surgery.

• In the opinion of the investigator, patient has any concomitant disease which islikely to jeopardize the functioning or success of the implant

• Patient is known to be pregnant

• The patient is in the vulnerable population group, such as

• a prisoner

• a known alcohol or drug abuser

• mentally incompetent or unable to understand what participation in this studyentails