Department of Orthopedic Surgery Community Healthcare Organization Osaka Hospital 553-0003;
Center for Sports Medicine Osaka Police Hospital 543-8922;
Department of Orthopaedic Surgery University Graduate School of Medicine 565-0871;
Department of Orthopaedic Surgery Osaka Police Hospital 543-8922;
Shoulder injections; Glenohumeral injections; Ultrasound guidance; Magnetic resonance arthrography;