M-Vizion™ Macroscopic Radiographic Study

Inclusion Criteria:

* Must be able to read, understand, and provide written informed consent on the Institutional Review Board (IRB) approved Informed Consent Form (ICF).
* Ability to understand and provide written authorization for use and disclosure of personal health information.
* Subjects who are able and willing to comply with the study protocol and follow-up visits.
* Patients requiring a revision total hip replacement.
* Subjects undergoing revision THA who will receive an M-Vizion femoral component according to the indications for use.
* Male and female patients ages 21 - 80 years of age at the time of surgery.

Exclusion Criteria:

* Patients with neuromuscular or neurosensory deficiency, which would limit the ability to assess the performance of the device.
* Patients with a systemic or metabolic disorder leading to progressive bone deterioration.
* Patients bone stock is compromised by disease or infection, which could possibly prevent adequate support and/or fixation to the prosthesis.
* Patients with an active or suspected latent infection in or about the hip joint.
* Patients that are incarcerated.