Clinical biomechanics
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Clinical biomechanics · Feb 2014
The effect of interlocking parallel screws in subcapital femoral-neck fracture fixation: a cadaver study.
A new locking-plate for femoral-neck fractures that provides angular stability to three screws in an inverted triangle configuration was evaluated. The plate is not fixed to the lateral cortex and therefore represents a new treatment principle. ⋯ Adding a lateral interlocking plate to three screws might improve the fracture stability. However, none of the implants were able to resist the unwanted deformation of the proximal femur. Regardless of the fixation, female sex, reduced bone quality and small sized femurs appear to increase risk of failure.