Increased risk of revision in patients with non-traumatic femoral head necrosis

11,589 cases compared to 416,217 cases with primary osteoarthritis in the NARA database, 1995–2011

Camilla BerghInstitute of Clinical Sciences, Sahlgrenska Academy, University of GöteborgCorrespondence[email protected]

Ann M FenstadDepartment of Clinical Medicine, University of Bergen;The Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway and Department of Orthopaedic Surgery and Traumatology, Institute of Clinical Research, Unversity of Southern Denmark, Odense

Ove FurnesDepartment of Clinical Medicine, University of Bergen

Göran GarellickInstitute of Clinical Sciences, Sahlgrenska Academy, University of Göteborg;The Swedish Hip Arthroplasty Register, Registercentrum VGR, Göteborg, Sweden

Leif I HavelinDepartment of Clinical Medicine, University of Bergen

Søren OvergaardThe Norwegian Arthroplasty Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway and Department of Orthopaedic Surgery and Traumatology, Institute of Clinical Research, Unversity of Southern Denmark, Odense

Alma B PedersenDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark

Keijo T MäkeläDepartment of Orthopaedics and Traumatology, Turku University Hospital, Turku

Pekka PulkkinenDepartment of Public Health, University of Helsinki, Helsinki, Finland

Maziar MohaddesInstitute of Clinical Sciences, Sahlgrenska Academy, University of Göteborg

Johan KärrholmInstitute of Clinical Sciences, Sahlgrenska Academy, University of Göteborg;The Swedish Hip Arthroplasty Register, Registercentrum VGR, Göteborg, Sweden

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Increased risk of revision in patients with non-traumatic femoral head necrosis

11,589 cases compared to 416,217 cases with primary osteoarthritis in the NARA database, 1995–2011

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Increased risk of revision in patients with non-traumatic femoral head necrosis

11,589 cases compared to 416,217 cases with primary osteoarthritis in the NARA database, 1995–2011

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