1 Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy. giuseppe.milano@unibs.it.
2 Department of Bone and Joint Surgery, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123, Brescia, Italy. giuseppe.milano@unibs.it.
3 Department for Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany.
4 Center for Shoulder and Elbow Surgery, ATOS Clinic, Effnerstrasse 38, 81925, Munich, Germany.
5 University Medical Centre of Ljubljana, Zaloška cesta 2, 1000, Ljubljana, Slovenia.