Incidence and risk factors of intraoperative periprosthetic femoral fractures during primary total hip arthroplasty: 218,423 cases reported to the Norwegian Arthroplasty Register between 1987 and 2020. - Brüggemann H; Dalen I; Bache-Mathiesen LK; Fenstad AM; Hallan G; Fosse L (Acta orthopaedica, 2022)