Are orthopaedic randomized controlled trials as statistically fragile as portrayed? A call for improved interpretation of the statistical fragility index

• Jacob F. Oeding,
• Olufemi R. Ayeni,
• Eric Hamrin Senorski,
• Stefano Zaffagnini,
• Alberto Grassi,
• Kristian Samuelsson

Affiliations

Jacob F. Oeding

Mayo Clinic Alix School of Medicine, Mayo Clinic Rochester Minnesota USA

Olufemi R. Ayeni

Division of Orthopaedics, Department of Surgery McMaster University Hamilton Ontario Canada

Eric Hamrin Senorski

Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy University of Gothenburg Gothenburg Sweden

Stefano Zaffagnini

IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli Bologna Italy

Alberto Grassi

IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli Bologna Italy

Kristian Samuelsson

Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy University of Gothenburg Gothenburg Sweden