3D MR Versus 3D CT for Glenohumeral Arthritis

Inclusion Criteria:

- Patients suffering from glenohumeral OA;

- Radiographic evidence of severe glenoid erosion;

- Indication for TSA based on clinical exam;

- Patient is willing to participate by complying with pre-operative visit requirements;

- Patient is willing and able to review and sign a study informed consent form.

Exclusion Criteria:

- Prior arthroplasty at the affected shoulder;

- Patients with inflammatory arthritis;

- Patients with post-capsulorrhaphy arthritis;

- Patients with post-traumatic arthritis;

- Patients with rotator cuff tear arthropathy;

- Patients exhibiting a lack of physical or mental ability to perform or comply with the
study procedures;

- Patients who are pregnant;

- Patients with implanted medical devices that are contraindicated to exposure up to a
3.0-tesla magnetic field.