Pertrochanteric fractures are a highly relevant topic not only because of the high frequency or age of the population concerned, but also because of comorbidity (osteoporosis, malnutrition, decreased physical activity, decreased visual acuity, neurological deficits, asthenia, disorders of the equilibrium and impaired reflexes) and the mortality associated with this type of fractures.

The cut-out of the cervical screw is a mechanical complication common to different means of osteosynthesis of pertrochanteric fractures, this complication significantly increases the morbidity.

From January 2013 to May 2019, out of a total of 340 patients having had surgery for pertrochanteric fracture, 12 cases of cervical screw cut-out were recorded within the Brugmann University Hospital. The average follow-up after surgery was 18 months.

This study analyses different parameters and their link with cervical screw cut-outs, and compares the results with the ones published in the scientific literature.

Inclusion Criteria:

All patients admitted for a pertrochanteric and subtrochanteric fracture of the femur treated by cerebrospinal nailing with all the methods of fixation of the head (blade or screw) and who evolved to a cut-out of the cervical screw.

Exclusion Criteria:

• Fractures treated by open osteosynthesis
• Fractures operated with good radiological outcome
• Incomplete or non useable medical files

All patients admitted for a pertrochanteric and subtrochanteric fracture of the femur treated by cerebrospinal nailing with all the methods of fixation of the head (blade or screw) and who evolved to a cut-out of the cervical screw.