Cut Out Phenomenon After Stable Trochanteric Fracture Treated With Sliding Pin Plate: Osteonecrosis or Simple Implant Failure?

Transtrochanteric fractures are an orthopedic emergency, accounting for almost half of all femur fractures, with an incidence between the seventh and eighth decade of life.Its treatment is imminently surgical, except in special conditions where the patient's surgical risk outweighs the benefits of the procedure.Surgical treatment offers mostly good and predictable results, but it is not without risks and complications.In this article, we report a case of the cut-out phenomenon following the use of a sliding pin plate in a stable trochanteric fracture, with characteristic intraoperative evolution of the anatomopathological material suggestive of osteonecrosis of the femoral head (ONCF).