Patients were randomized into three groups of @ patients each treated under ultrasound guidance : Group A ( @ ml methylprednisolone acetate ; mean baseline thickness = @ mm ; mean baseline VAS = @ ; mean baseline quickDASH = @ ) ; Group B ( @ ml methylprednisolone acetate +@ - day delayed @ ml saline @ % ; @ ; @ ; @ ) ; Group C ( @ ml methylprednisolone acetate +@ - day delayed @ ml low molecular weight hyaluronic acid ; @ ; @ ; @ ) .