A Study to Evaluate the Conformis Hip System

Exclusion Criteria

• •Simultaneous bilateral procedure required
• •BMI \> 40
• •Poorly controlled diabetes (defined as HbA1c\>7 or Investigator discretion)
• •Crowe classification of hip dysplasia, grades 2, 3, or 4
• •Active malignancy (defined as a history of any invasive malignancy - except non-melanoma skin cancer), unless patient has been treated with curative intent and there have been no clinical signs or symptoms of the malignancy for at least 5 years
• •Other lower extremity surgery planned within 1 year of consent to the affected limb Contralateral THR surgery within 3 months pre or post index surgery
• •Neuromuscular conditions which prevent patient from participating in study activities
• •Active local or systemic infection which precludes THR procedure
• •Immunocompromised in the opinion of the Investigator
• •Medically diagnosed fibromyalgia or similar conditions that might impact the patient's ability to differentiate source of pain
• •Rheumatoid arthritis or other forms of inflammatory joint disease
• •Loss of bone or musculature, osteonecrosis, neuromuscular or vascular compromise in the area of the joint to be operated on, to an extent that the procedure is unjustified
• •Diagnosed with or receiving treatment for osteoporosis that is likely to confound results in the opinion of the Investigator
• •Physical disability affecting the lumbar spine that is likely to confound results in the opinion of the Investigator
• •Charcot or Paget's disease
• •Inability to complete the protocol in the opinion of the clinical staff due to safety or other reasons
• •Participation in another clinical study which would confound results
• •Allergy to any of the implant materials