Table 1

The Canadian Armed Forces aeromedical risk matrix risk applied to Pilot A

Medical event class
Likely (>2%/y)
Possible (>1–2%/y)
Unlikely (>0.5–1%/y)
Highly unlikely (<0.5%/y)Aseptic looseningDeep infectionAcute injury
  • We consider periprosthetic fractures and dislocations to be class 4 medical events as they would be ‘likely to result in a flight safety critical event’ if they occurred during flight. Acute injury=combined incidence of dislocation and periprosthetic fracture. Risk matrix adapted from Grey et al.5