Patients were randomized into three groups of 25 patients each treated under ultrasound guidance : Group A ( 1 ml methylprednisolone acetate ; mean baseline thickness = 1.6 mm ; mean baseline VAS = 6 ; mean baseline quickDASH = 55 ) ; Group B ( 1 ml methylprednisolone acetate +15 - day delayed 2 ml saline 0.9 % ; 1.4 ; 6 ; 56 ) ; Group C ( 1 ml methylprednisolone acetate +15 - day delayed 2 ml low molecular weight hyaluronic acid ; 1.7 ; 6 ; 55 ) .