RedactedNarrative: V1 was heading southbound on ICW south of the Lantana Bridge with 4 people on board.  V1 went over the wake of a north bound vessel, which applied stress/torque to the steering system.  A hydraulic hose on the back of the helm came loose causing a loss of steering.  V1 made multiple bow to stern rotations, which ejected the operator from the vessel.  During the rotations, V1 struck the operator with the propeller causing serious injury to face and head.  Other occupants were thrown around inside vessel. one occupant treated for lacerations and abrasions on his head and upper extremeties.; 
  
  Occupant:Contusion/laceration to forehead; 
  
  Operator:Cranium fracture, Lacerations and fractures to face, partial tongue amputation, right thumb fracture
  