Inclusion Criteria:  Patient must be 18 years of age or older and skeletally mature Patient must be willing and able to sign IRB approved informed consent Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis Rheumatoid arthritis Correction of functional deformity Treatment of non-union, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques Revision procedures where other treatment or devices have failed  Exclusion Criteria:  Off-label use Uncooperative patient or patient with neurological disorders who are incapable of following directions Osteoporosis Metabolic disorders which may impair bone formation Osteomalacia Distant foci of infections which may spread to the implant site Rapid joint destruction, marked bone loss or bone resorption apparent on roentgenogram Vascular insufficiency, muscular atrophy, or neuromuscular disease Infection Sepsis Osteomyelitis Patient is known to be pregnant or nursing Patient is a prisoner Patient is a known alcohol or drug abuser Patient has a psychiatric illness or cognitive deficit that will not allow for proper informed consent Patient is unwilling to sign an informed consent