About 12% of all osteoarthritis cases in the United States are classified as<unk><unk>  osteoarthritis. This means that over 5.6 million people are affected by<unk><unk>  osteoarthritis only in the United States. Females are more often affected than males.<unk>  costs the US health care system approximately 3.06 billion (0.15%) of total health care costs each year.
Post-traumatic arthritis
Facet joint arthrosis
Transient synovitis
Calcific bursitis
Hypertrophic osteoarthropathy
Inflammatory arthritis
Bursitis
Shoulder arthritis