Prospective Clinical Follow-up of the Echo Bi-Metric Microplasty Stem for Total Hip Arthroplasty

Inclusion Criteria

• •Subjects are eligible for this trial if they satisfy all of the following criteria:
• •* Patient is 18 to 65 years of age, inclusive
• •* Patient is skeletally mature
• •* Patient qualifies for primary unilateral or bilateral total hip arthroplasty based on physical exam and medical history including at least one of the following:
• •* Osteoarthritis
• •* 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
• •* Patient has no history of previous total hip arthroplasty or arthrodesis of the affected hip joint(s)
• •* Patient is willing and able to complete scheduled follow-up evaluations as described in the Informed Consent
• •* Patient, or the patient's legally authorized representative, has participated in the Informed Consent process and is willing and able to sign an IRB- approved informed consent