Referat zur Arbeit von Paavola M, Malmivaara A, Taimela S, Kanto K, Inkinen J, Kalske J,Sinisaari I, Savolainen V,Ranstam J, Järvinen TLN for the Finnish Shoulder Impingement Arthroscopy Controlled Trial (FIMPACT) Investigators “Subacromial decompression versus diagnostic arthroscopy for shoulder impingement: randomised, placebo surgery controlled clinical trial”. BMJ 2018; 362: k2860