PLT and Steroid in Lateral Epicondylopathy and Supraspinatus Calcific Tendinopathy

Lateral epicondylitis Inclusion Criteria: * Tenderness at lateral epicondyle more than 3 months * Ultrasound-confirmed lateral epicondylopathy * Pain VAS ≥ 3/10 during wrist resistive extension * No treatment response to NSAID and physiotherapy Exclusion Criteria: * Pregnancy or lactation * Carpal tunnel syndrome (the same arm) in one year * Cervical radiculopathy * Taking NSAID in one week * Receiving PRP or steroid injection in one month * History of bacteremia, cellulitis or skin ulcer in three months * Rheumatoid arthritis * Malignancy * Poorly controlled diabetets mellitus (DM), liver and kidner diseases * Severe anemia (Hb\<5) * Thrombocytopenia * History of tennis elbow surgery * History of elbow trauma Supraspinatus calcific tendinis Inclusion Criteria: * Hawkins-Kennedy test or empty can test, one of which is positive * Ultrasound-confirmed (calcification \> 2mm) * Pain VAS ≥ 3/10 over right deltoid area more than 3 months * No treatment response to NSAID and physiotherapy Exclusion Criteria: * Pregnancy or lactation * Carpal tunnel syndrome (the same arm) in one year * Cervical radiculopathy * Taking NSAID in one week * Receiving PRP or steroid injection in one month * History of bacteremia, cellulitis or skin ulcer in three months * Rheumatoid arthritis * Malignancy * Poorly controlled DM, liver and kidner diseases * Severe anemia (Hb\<5) * Thrombocytopenia * History of shoulder surgery * History of shoulder trauma