Highlights
fracture, fractures
FRACTURE COMPRESSION

Hydroxyapatite coating on the screw thread did not improve screw fixation in the femoral head of a sliding hip screw in pertrochanteric fractures.Displacement of pertrochanteric fractures operated with a sliding hip screw was primarily a fracture compression across the screw axis.Pertrochanteric fractures operated with a sliding hip screw stabilized after 6 weeks indicating fracture healing.