The Use of Genex in the Management of Early-Stage Osteonecrosis of the Femoral Head

Inclusion Criteria: * Subject is at least 18 years or older with osteonecrosis of the femoral head * Surgeon considers the patient appropriate for the core decompression procedure of the hip * Subject provides voluntarily signature on the IRB approved Informed Consent Form * Subject must be physically and mentally willing and able, in the Investigator's opinion at the time of enrollment, to be compliant with the protocol and complete the study protocol and follow ups Exclusion Criteria: * Subject is pregnant at the time of surgery * Subject is incarcerated * Subject is not comfortable with speaking, reading and understanding questions and providing responses in an available language for the questionnaires provided for the study