Early Clinical Examination and Ultrasonography Screening of Acute Soft Tissue Shoulder Injuries

Inclusion Criteria, all of the following: * patient at Section for Orthopaedic Emergency, Oslo University Hospital * living in the municipality of Oslo * acute injury * sudden onset of symptoms * International Classification of Diseases (ICD) -10 S4-diagnosis (except injuries of middle and distal third of humerus and related soft tissue) * no sign of acute injury on radiographs in two views, or successfully reduced dislocation without fracture * turns up for follow-up appointment within 21 days of injury Exclusion Criteria: * patients that are incapable of giving and or receiving adequate information, or that cannot undergo a normal clinical investigation, due to for example language problems, level of consciousness, drugs, mental or emotional status or other * patients that have undergone shoulder surgery during the last 6 months * injury of both shoulders * patients with neck-/shoulder problems or generalised muscle pain during the last three months before the injury * other serious disease such as cancer, rheumatic disorders, haematological, neurological, endocrinological or gastrointestinal disease that according to the doctor's best clinical judgement makes participation or follow-up difficult * does not want to participate