Abstract Background and purpose. Infections after intramedullary fixation of trochanteric femoral fractures are rare, but potentially life-threatening complications. There limited data available to support decision making in these cases. Patients methods. A retrospective study 995 consecutive operatively treated was made find out different risk factors for infection describe the result...

Sigmoids (AKA s-curves or logistic curves) are commonly used in a diverse spectrum of disciplines as models for time-varying phenomena showing initial acceleration followed by slowing: technology diffusion, cumulative cases an epidemic, population growth towards carrying capacity, etc. Existing work demonstrates that retrospective fit data is often impressive. We show time series data, the futu...