How are intertrochanteric hip fractures classified?

Updated: Jan 08, 2019
  • Author: Naveenpal S Bhatti, MD; Chief Editor: Sherwin SW Ho, MD  more...
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Classification of intertrochanteric hip fractures is based on a system introduced by Evans in 1949. This system is based on the fracture pattern and the ability to obtain a stable reduction. Evans recognized the importance of restoring the posteromedial cortex as a contributing factor to fracture stability. Others classify intertrochanteric fractures by the number of fracture fragments present; however, for ease of description and simplicity, these fractures are best classified as follows:

  • Stable: Fractures with an intact posteromedial cortex

  • Unstable: Fractures with comminution of the posteromedial cortex, fractures with diaphyseal extension

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