[Musculoskeletal ultrasound II - «why are bats better than physicians»].

This article reviews the aspects which were discussed at the SGUM congress in Davos in the talk «why are bats better than physicians». The talk focussed on modern aspects of Ultrasound (US) diagnostics at the locomotor system. High frequency US probes allow accurate diagnosis, initial assessment and follow up in Rheumatoid Arthritis and Osteo-Arthritis. Basic pathologic features in these pathologic conditions in form of synovitis, erosion and cartilage damage are described. In case of entrapment neuropathies - first of all in carpal tunnel syndrome - pathognomonic sonomorphologic changes can be detected and allow to confirm a clinical suspicion. The correct indication for diagnostic or therapeutic interventions at the musculoskeletal system can be critically verified and if necessary revised. The guidance of the intervention by US guarantees high accuracy of needle placement and thereby increases the diagnostic yield and the therapeutic success of injections/infiltrations.