Higher 30-day mortality associated with the use of intramedullary nails compared with sliding hip screws for the treatment of trochanteric hip fractures: a prospective national registry study

Bone Joint J. 2019 Jan;101-B(1):83-91. doi: 10.1302/0301-620X.101B1.BJJ-2018-0601.R2.

Abstract

Aims: The aim of this study was to investigate the association between the type of operation used to treat a trochanteric fracture of the hip and 30-day mortality.

Patients and methods: Data on 82 990 patients from the National Hip Fracture Database were analyzed using generalized linear models with incremental case-mix adjustment for patient, non-surgical and surgical characteristics, and socioeconomic factors.

Results: The use of short and long intramedullary nails was associated with an increase in 30-day mortality (adjusted odds ratio (OR) 1.125, 95% confidence interval (CI) 1.040 to 1.218; p = 0.004) compared with the use of sliding hip screws (12.5% increase). If this were causative, it would represent 98 excess deaths over the four-year period of the study and one excess death would be caused by treating 112 patients with an intramedullary nail rather than a sliding hip screw.

Conclusion: There is a 12.5% increase in the risk of 30-day mortality associated with the use of an intramedullary nail compared with a sliding hip screw in the treatment of a trochanteric fractures of the hip.

Keywords: Intramedullary nail; Mortality; National Hip Fracture Database; Neck of femur fracture; Sliding hip screw; Trochanteric hip fracture.

Publication types

  • Comparative Study
  • Observational Study

MeSH terms

  • Aged
  • Aged, 80 and over
  • Bone Nails*
  • Bone Screws*
  • Female
  • Fracture Fixation, Intramedullary / instrumentation*
  • Fracture Fixation, Intramedullary / mortality
  • Hip Fractures / mortality
  • Hip Fractures / surgery*
  • Humans
  • Length of Stay / statistics & numerical data
  • Male
  • Middle Aged
  • Prospective Studies
  • United Kingdom / epidemiology