This paper proposes a novel method of using an antero-posterior buttress screw at the distal fragment just below
the fracture site in conjunction with the sliding hip screw (SHS) to resist excessive femoral medialisation. A virtual assessment of the effectiveness of this new method was performed using the finite element analysis. The results indicate that the use of a sliding hip screw (SHS) combined with a buttress screw can help resist femoral medialisation better than using an SHS with no buttress screw. The von Mises equivalent stress (EQV) was found to be in a safe range, which indicates increased integrity of the lateral wall with the addition of the buttress screw.

Keywords: Trochanter, Fractures, Hip screw, Dynamic hip screw, Medialization