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Beitragstitel Using the pronator quadratus sign to differentiate distal forearm fractures from simple wrist contusions in children.
Beitragscode P13
  1. Victor Starkenmann-Darbellay Hopitaux Universitaires de Genève (HUG) Vortragender
Präsentationsform Poster
  • A02 - Hand
Abstract The pronator quadratus sign is a radiologic sign found on lateral wrist x-rays suggesting forearm fracture. While it has been described in the adult population, this sign has never been validated for the pediatric population. However, it is often used in children due to the biomechanical properties of growing bone that can make some fractures difficult to detect.

For our retrospective case-control study we measured different parameters of the pronator quadratus complex in 200 children that we normalized to their growth. Results confirm that there is a modification of the pronator quadratus complex following distal radius fractures compared to simple forearm contusions. We also found that the most significant and discriminating measure to differentiate fractures from contusions is the combination of the pronator muscle thickness and fat pad thickness.