Cementless Alumina-Alumina Total Hip and Hybrid

Exclusion Criteria

• •Patients with physical conditions that would eliminate adequate implant support or prevent the use of an appropriately sized implant (e.g., tumor)
• •Previous surgery that has adversely affected bone stock (such as some hip pinning or some osteotomies) or prior total hip replacement.
• •Insufficient quality or quantity of bone resulting from conditions such as:
• •* Cancer, where radiation has destroyed the available bonestock
• •* Congenital dislocation
• •* Metabolic bone disease of the upper femur or pelvis
• •* Femoral osteotomy revision
• •* Girdlestone revision
• •* Active infection of the hip joint
• •* Old or remote infection
• •* Other conditions that lead to inadequate skeletal fixation
• •Neurological conditions that might hinder patient's ability to follow study procedures, e.g., to restrict physical activities (e.g., Severe Parkinson's, CVA on affected side)
• •Patient's mental condition that may interfere with his ability to give an informed consent or willingness to fulfill the required follow-up of the study
• •* Mental illness
• •* Senility
• •* Drug Abuse
• •* Alcoholism
• •Conditions that place excessive demands on the implant
• •* Charcot's joints
• •* Muscle deficiencies
• •* Multiple joint disabilities
• •* Refusal to modify postoperative physical activities
• •* Skeletal immaturity
• •* Obesity (50% over recorded body weight mass index)
• •Greater than or equal to 70 on preoperative HHS score