DON’T SKIP A STEP. Get Back to Life with Cartiva. Your toes’ joints are uniquely designed for movement, especially the big toe, which provides most of the propulsive force needed for walking and running. Unlike fusion, which locks the joint in place, Cartiva allows your joint to move how it’s supposed to. Cartiva is backed by the largest comprehensive study ever conducted for the treatment of osteoarthritis in the big toe joint.


X-rays are needed in most cases to perform an initial evaluation and also to measure your progress during the healing process.

*For your comfortability, bring elastic-waist shorts with you if you are receiving a knee x-ray; for females please avoid a bra with metal underwire.


MRI is a type of high tech scanner that uses magnetic fields to create “slices” of a picture of a part of your body. This diagnostic test will be used to evaluate and verify your specific injury. These scans may be done with or without dye. Arthrograms are MRI studies with dye. If dye is required, you will receive an injection by a Radiologist and then be taken to our MRI Suite for your scan. We employ our own technologists to ensure that you have the best possible scan, built to each physician’s specifications. There are some patients who may not qualify for scanning if they have certain conditions or metal in their bodies.

NOTE: If you have an arthrogram-MRI at OPA MRI you may receive bills from multiple parties, including the Seattle Surgery Center and the Radiologist who performs the injection procedure in addition to the MRI scan bill.



Three bones meet to form the elbow: The humerus, the ulna and the radius. The humerus is the bone in your upper arm, and the part of the humerus that meets the elbow is called the distal humerus. The ulna and the radius are the two bones that make up the forearm.

If you were to hold your hand out with your palm facing upwards, the ulna would be on the inner, or medial, side while the radius would be on the outer, or lateral side. The ulna is the larger of the two forearm bones, with a bony prominence at the elbow called the olecranon. The olecranon and the distal humerus form the hinge-like humeroulnar joint, which allows for bending and straightening movements.

The end of the radius that meets the elbow is called the radial head, and it meets the humerus to form the humeroradial joint, which acts similar to the hinge-like humeroulnar joint. The radial head also articulates with the ulna to form the proximal radioulnar joint, which allows for rotating movements of the forearm, for example when you have your wrists turned down to type.