Figure 3From: Clinical evaluation of the Asian proximal femur intramedullary nail antirotation system (PFNA-II) for treatment of intertrochanteric fracturesPatients with severe osteoporosis may develop reamer cutting or piercing of the femoral head or back nails. (a) Reamer cutting occurred in the presence of severe osteoporosis. (b) The entrance points of the PFNA nail needle are lateral deviation and the reamer exit.Back to article page