This proposal is a prospective, randomized, double-blinded study to evaluate the efficacy of
hyaluronic acid (HA) injections for chronic lateral epicondylitis (LE). HA has traditionally
been used to treat knee osteoarthritis. There are a small number of studies in the literature
that suggest that HA injections can be very effective for tendinosis. Although LE has been
studied with literally hundreds of articles published, very little treatment has proven to be
efficacious. This study will investigate the effectiveness of hyaluronate in treatment of
chronic LE. This will include a two arm study with one formulation of HA tested against
saline injections as the control.