Evidence(6) Society(6) coronavirus(6) material(6) surgical(6) Complication(6) Result(6) coronavirus disease(6) Level(6) Admission(6) retrospective(6) COVID-19(6) acute respiratory syndrome(6) pandemic(6) outcome(6) Osteosynthesis(6) age(6) tested(6) proximal(6) hip(6) SARS-CoV-2(6) hospital(6) Patient(6) Care(6) Treatment(6) Italy(6) multicentre(6) expected(3) effective(3) First wave(3)