Monoaxial versus polyaxial locking systems: a biomechanical analysis of different locking systems for the fixation of proximal humeral fractures

@article{Zettl2011MonoaxialVP,
  title={Monoaxial versus polyaxial locking systems: a biomechanical analysis of different locking systems for the fixation of proximal humeral fractures},
  author={Ralph Peter Zettl and Thorben Mueller and Tobias Topp and Ulrike Lewan and Antonio Kr{\"u}ger and Christian Kuehne and Steffen Ruchholtz},
  journal={International Orthopaedics},
  year={2011},
  volume={35},
  pages={1245-1250}
}
The development of locking plate systems has led to polyaxial screws and new plate designs. This study compares monoaxial head locking screws (PHILOS© by Synthes) and a new generation of polyaxial locking screws (NCB-LE© by Zimmer) with respect to biomechanical stability. On nine pairs of randomised formalin fixed humerus specimens, standardised osteotomies and osteosyntheses with nine monoaxial (group A) und nine polyaxial (group B) plate/screw systems were performed. A material testing… CONTINUE READING

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