Posterior Dislocation Summary

• Posterior Dislocation:

  • what
  • dislocation of the elbow joint +/- radial fracture +/- coronoid fracture
  • all 3 together forms the Terrible Triad
  • 90% of elbow dislocations posterior
  • where
  • the elbow joint (humeroulnar joint and humeroradial joint) and surrounding structures
  • how
  • falls make up 56% of incidences
  • generally a FOOSH (hyperextension + valgus)
  • sporting activities make up 44% of incidences
  • who
  • most common dislocation in children
  • 2nd most common dislocation in adults
  • highest incidence: males ages 10 to 19 years old