Is the rotation of the femoral head a potential initiation for cutting out Open Access

Description: Since cut-out still remains one of the major clinical challenges in the field of osteoporotic proximal femur fractures, remarkable developments have been made in improving treatment concepts. However, the mechanics of these complications have not been investigated yet. We hypothesize using the experimental data and a theoretical model that a previous rotation of the femoral head due to de-central implant positioning can initiate a cut-out.
Conclusion We conclude the center-center position in the head of femur of any kind of lag screw or blade is to be achieved to minimize rotation of the femoral head and to prevent further mechanical complications.
Is the rotation of the femoral head a potential initiation for cutting out? A theoretical and experimental approach Lenich A, Bachmeier S, Prantl L, Nerlich M, Hammer J, Mayr E, Al-Munajjed A, Fuchtmeier B BMC Musculoskeletal Disorders 2011, 12:79 (full text)