Page 102 - Journal of Special Operations Medicine - Winter 2014
P. 102

Pilot Ejection, Parachute,
                                      and Helicopter Crash Injuries



                  Colleen M. McBratney, MD; Stephen Rush, MD; Chetan U. Kharod, MD, MPH







          ABSTRACT
          USAF Pararescuemen (PJs) respond to downed aircrew   patients may salvage neurologic function in severe cases.
          as a fundamental mission for personnel recovery (PR),   If such packaging requires any kind of risk to the medic
          one of the Air Force’s core functions. In addition to re-  or pilot, abandon attempts at spinal immobilization in
          sponding to these in Military settings, the PJs from the   favor of a prompt return to safety.
          212 Rescue Squadron routinely respond to small plane
          crashes in remote regions of Alaska. While there is a   If there is injury by ground fire, rapid hemorrhage con-
          paucity of information on the latter, there have been ar-  trol will make the difference between life and death.
          ticles detailing injuries sustained from helicopter crashes
          and while ejecting or parachuting from fixed wing air-  Factors affecting pilot ejection injuries include the air-
          craft. The following represents a new chapter added to   craft (speed, altitude, attitude) and the pilot (extraneous
          the  Pararescue Medical Operations Handbook, Sixth   or poor fitting gear, harness, helmet, body position in
          Edition  (2014, editors Matt Wolf, MD, and Stephen   ejection seat). All of these are affected by the pilot’s level
          Rush, MD, in press). It was designed to be a quick refer-  of consciousness.
          ence for PJs and their Special Operations flight surgeons
          to help with understanding of mechanism of injury with   Causes of known combat ejection injuries  include flail
                                                                                                 2
          regard to pilot ejection, parachute, and helicopter ac-  (33%), enemy-inflicted injury (17%), ejection-seat G
          cident injuries. It outlines the nature of the injuries sus-  forces (14%), struck an object (13%), parachute land-
          tained in such mishaps and provides an epidemiologic   ing (11%), fire (10%), parachute-opening shock (2%),
          framework from which to approach the problem.      and vertebral injury.

          Keywords:  Pararescuemen, helicopters, parachutes, fixed   Pre-ejection Injuries
          wing aircraft, injury prevention                   Pre-ejection injuries occur in the time from initial air-
                                                             craft emergency until ejection is initiated. These include
                                                             injuries due to fire; negative G forces; ejection injuries;
                                                             parachute-related injuries; and generalized shock from
          Introduction
                                                             the trauma of the aircraft escape event.
          As PJ first responders, it is very helpful to understand
          mechanism of injury (MOI) and patterns of associated   •  Injuries caused by fire can include burns, smoke in-
          injuries. An understanding of MOI helps to identify   halation, blindness, and loss of consciousness. Ex-
          what injuries to look for and to anticipate those that   plosion injuries range from lacerations to multiple
          might be life threatening. This is especially important   extreme injuries, as well as shrapnel wounds. “Pilots
          in circumstances when verbal communication with      sustaining shrapnel wounds from primary or second-
          the patient is limited, as in the back of any type of   ary projectiles usually die.” 1
          aircraft.                                          •  Negative G forces can cause head or neck strain, cer-
                                                               vical fracture, and loss of consciousness.
          Pilot Ejection Injuries
                                                             Ejection Injuries
          When treating ejection injury patients,  be prepared for   Ejection injuries can result from ejection seat forces or
                                           1
          penetrating trauma: lives are saved during the “golden   being struck by a seat, cockpit object, or the canopy.
          hour.” Airway injuries are common, as is head trauma.   They also include airstream injuries.
          Be aware that the pilot may be unable to walk.
                                                             •  Ejection seat forces  include pelvis fracture and spinal
                                                                               3
          Pilots surviving aircraft ejection frequently sustain ver-  compression fracture. Catapult forces from the ejec-
          tebral and extremity fractures. Proper packaging of such   tion seat can cause internal organ injuries.



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