Lecture 4: Kinematics of trauma and fracture Flashcards
What are the 4 ways injuries occur?
1) MOI
2) IOS
3) types of energy
4) law of conservation of energy
What is the def of MOI
THE METHOD BY WHICH DAMAGE (TRAUMA) TO SKIN, MUSCLES,
ORGANS, AND BONES OCCURS.
What does the MOI describe?
DESCRIBES THE FORCES ACTING ON THE BODY THAT CAUSED THE
INJURY
(the how, with what force, what body part)
Why is mecaanism of injury so important?
• HCP USE M.O.I. TO HELP DETERMINE HOW LIKELY IT IS THAT A SERIOUS
INJURY HAS OCCURRED.
THE REPORTED MECHANISM MAY INDICATE THE INJURIES ATHLETIC THERAPISTS/FIRST AIDER CAN EXPECT TO FIND UPON THEIR ARRIVAL.
true of false: MOI will not help you find your IOS?
FALSE
What is the definition of index of suspician?
EDUCATED IDEA ON THE POSSIBLE INJURY THAT HAS OCCURRED
YOUR CONCERN FOR POTENTIALLY SERIOUS UNDERLYING INJURIES
What are the 2 types of indices of suspicion and what they mean>
A “HIGH INDEX OF SUSPICION” MEANS YOU CONSIDER THE DIAGNOSIS A STRONG POSSIBILITY
A LOW INDEX OF SUSPICION MEANS THE INVERSE
What are some different examples of MOI?
Contact vs non contact Valgus/varus force Sharp deceleration FOOSH Hyperextension/hyperflexion Invresion/eversion Collision
What are some examples of indez of suspicion
Contusion Ligament sprain Gr I.II.III Complete tear Dislocation / fracture Sprain/strain/dislocation Ligament sprain Gr I.II.III contusion/laceration/int.bleed
What are the 3 types of energy
Potential
Kinetic
Work
Explain the concept of inertia
A body in motion will remain in motion unless acted upon by an outside force
same for rest
Explain potential energy
product of mass, force of grav and height
Explain kinetic energy
eneryg in motion
energy of a moving object
Explain work energy
kinetic energy is converted to work when bringing an object to stop
What is the greatest determination of kinetic energy
speed
True of false: if you have double the mass , its double the injury>
TRUE
True or false and explain
Double speed=double energy>?
FALSE
Double speed=quadruple energy
What is the definition of. trauma
DEFINED AS INJURY TO HUMAN TISSUES AND ORGANS RESULTING FROM THE TRANSFER OF ENERGY FROM THE ENVIRONMENT
What are the 2 types of trauma>
blunt trauma
penetrating trauma
Give the definition of blunt trauma and explain it
Result of force to the body that causes injury primarily without penetrating the soft tissue or internal organs and cavities (- Transmission of Energy into the body)
causes:
Closed injury
Indirect injury to underlying structures
What is an injury in sport caused by and how can it be prevented?
extreme exertion
fatigue
direct trauma
PROTECTIVE GEAR CAN REDUCE
What are the most common injuries for in an athletic setting (6)
CONTUSIONS • LIGAMENTOUS INJURIES • FRACTURES • DISLOCATIONS • SPINAL INJURIES • INTERNAL ORGAN INJURIES (CONTACT SPORTS)
What is the definition of penetrating trauma?
Injury by objects that primarily pierce and penetrate the surface of the body and cause damage to soft tissues, internal organs and cavities
What is peenetrating trauma in sports caused by and what type of injury results from it
CAUSED BY SHARP OBJECTS (EX: BROKEN SPORT EQUIPMENT)
- OPEN INJURY
- DIRECT INJURY TO UNDERLYING STRUCTURES
